100 posts tagged with "java"

redission 调用流程

December 29, 2022 · 8 min read

背景

java的redis操作使用redission封装

一个简单的堆栈堆栈

使用

比较核心的堆栈

encode:132, CommandEncoder (org.redisson.client.handler)
encode:99, CommandEncoder (org.redisson.client.handler)
encode:55, CommandEncoder (org.redisson.client.handler)
write:107, MessageToByteEncoder (io.netty.handler.codec)
write:75, CommandEncoder (org.redisson.client.handler)
invokeWrite0:881, AbstractChannelHandlerContext (io.netty.channel)
invokeWrite:863, AbstractChannelHandlerContext (io.netty.channel)
write:968, AbstractChannelHandlerContext (io.netty.channel)
write:856, AbstractChannelHandlerContext (io.netty.channel)
write:120, MessageToByteEncoder (io.netty.handler.codec)
write:45, CommandBatchEncoder (org.redisson.client.handler)
invokeWrite0:881, AbstractChannelHandlerContext (io.netty.channel)
invokeWriteAndFlush:940, AbstractChannelHandlerContext (io.netty.channel)
write:966, AbstractChannelHandlerContext (io.netty.channel)
writeAndFlush:934, AbstractChannelHandlerContext (io.netty.channel)
write:83, CommandsQueue (org.redisson.client.handler)
invokeWrite0:879, AbstractChannelHandlerContext (io.netty.channel)
invokeWriteAndFlush:940, AbstractChannelHandlerContext (io.netty.channel)
run:1247, AbstractChannelHandlerContext$WriteTask (io.netty.channel)
runTask$$$capture:174, AbstractEventExecutor (io.netty.util.concurrent)
runTask:-1, AbstractEventExecutor (io.netty.util.concurrent)
 - Async stack trace
addTask:-1, SingleThreadEventExecutor (io.netty.util.concurrent)
execute:836, SingleThreadEventExecutor (io.netty.util.concurrent)
execute0:827, SingleThreadEventExecutor (io.netty.util.concurrent)
execute:817, SingleThreadEventExecutor (io.netty.util.concurrent)
safeExecute:1165, AbstractChannelHandlerContext (io.netty.channel)
write:972, AbstractChannelHandlerContext (io.netty.channel)
writeAndFlush:934, AbstractChannelHandlerContext (io.netty.channel)
writeAndFlush:984, AbstractChannelHandlerContext (io.netty.channel)
writeAndFlush:1025, DefaultChannelPipeline (io.netty.channel)
writeAndFlush:306, AbstractChannel (io.netty.channel)
send:206, RedisConnection (org.redisson.client)
sendCommand:590, RedisExecutor (org.redisson.command)
lambda$execute$3:164, RedisExecutor (org.redisson.command)
uniWhenComplete:859, CompletableFuture (java.util.concurrent)
uniWhenCompleteStage:883, CompletableFuture (java.util.concurrent)
whenComplete:2251, CompletableFuture (java.util.concurrent)
execute:149, RedisExecutor (org.redisson.command)
async:526, CommandAsyncService (org.redisson.command)
writeAsync:490, CommandAsyncService (org.redisson.command)
setAsync:192, RedissonBucket (org.redisson)
set:183, RedissonBucket (org.redisson)
main:25, App (com.demo.redission)

分配内存

allocateMemory:608, Unsafe (jdk.internal.misc)
<init>:122, DirectByteBuffer (java.nio)
allocateDirect:317, ByteBuffer (java.nio)
<clinit>:93, PlatformDependent0 (io.netty.util.internal)
isAndroid:333, PlatformDependent (io.netty.util.internal)
<clinit>:88, PlatformDependent (io.netty.util.internal)
<clinit>:84, NioEventLoop (io.netty.channel.nio)
newChild:182, NioEventLoopGroup (io.netty.channel.nio)
newChild:38, NioEventLoopGroup (io.netty.channel.nio)
<init>:84, MultithreadEventExecutorGroup (io.netty.util.concurrent)
<init>:60, MultithreadEventExecutorGroup (io.netty.util.concurrent)
<init>:49, MultithreadEventExecutorGroup (io.netty.util.concurrent)
<init>:59, MultithreadEventLoopGroup (io.netty.channel)
<init>:87, NioEventLoopGroup (io.netty.channel.nio)
<init>:82, NioEventLoopGroup (io.netty.channel.nio)
<init>:69, NioEventLoopGroup (io.netty.channel.nio)
<init>:181, MasterSlaveConnectionManager (org.redisson.connection)
<init>:73, ClusterConnectionManager (org.redisson.cluster)
createConnectionManager:196, ConfigSupport (org.redisson.config)
<init>:68, Redisson (org.redisson)
create:109, Redisson (org.redisson)
main:24, App (com.demo.redission)

ByteBuf 写入

堆栈

putByte:704, PlatformDependent0 (io.netty.util.internal)
putByte:719, PlatformDependent (io.netty.util.internal)
unsafeWriteUtf8:1020, ByteBufUtil (io.netty.buffer)
writeUtf8:836, ByteBufUtil (io.netty.buffer)
writeUtf8:820, ByteBufUtil (io.netty.buffer)
setCharSequence0:707, AbstractByteBuf (io.netty.buffer)
writeCharSequence:1187, AbstractByteBuf (io.netty.buffer)
encode:45, StringCodec$1 (org.redisson.client.codec)
encode:622, CommandAsyncService (org.redisson.command)
encode:313, RedissonObject (org.redisson)
setAsync:192, RedissonBucket (org.redisson)
set:183, RedissonBucket (org.redisson)
testApp:57, AppTest (com.demo.redission)
invokeVirtual:-1, LambdaForm$DMH/0x0000000800c0c400 (java.lang.invoke)
invoke:-1, LambdaForm$MH/0x0000000800c0d000 (java.lang.invoke)
invokeExact_MT:-1, Invokers$Holder (java.lang.invoke)
invokeImpl:154, DirectMethodHandleAccessor (jdk.internal.reflect)
invoke:104, DirectMethodHandleAccessor (jdk.internal.reflect)
invoke:577, Method (java.lang.reflect)
runTest:154, TestCase (junit.framework)
runBare:127, TestCase (junit.framework)
protect:106, TestResult$1 (junit.framework)
runProtected:124, TestResult (junit.framework)
run:109, TestResult (junit.framework)
run:118, TestCase (junit.framework)
doRun:116, TestRunner (junit.textui)
doRun:117, JUnit3IdeaTestRunner (com.intellij.junit3)
doRun:109, TestRunner (junit.textui)
startRunnerWithArgs:38, JUnit3IdeaTestRunner (com.intellij.junit3)
execute:38, IdeaTestRunner$Repeater$1 (com.intellij.rt.junit)
repeat:11, TestsRepeater (com.intellij.rt.execution.junit)
startRunnerWithArgs:35, IdeaTestRunner$Repeater (com.intellij.rt.junit)
prepareStreamsAndStart:235, JUnitStarter (com.intellij.rt.junit)
main:54, JUnitStarter (com.intellij.rt.junit)

ByteBuf 最后会调用UNSAFE.putByte(data, offset, value); 写入

ByteBuf 写入socket

write:62, SocketDispatcher (sun.nio.ch)
writeFromNativeBuffer:137, IOUtil (sun.nio.ch)
write:81, IOUtil (sun.nio.ch)
write:58, IOUtil (sun.nio.ch)
write:532, SocketChannelImpl (sun.nio.ch)
doWrite:415, NioSocketChannel (io.netty.channel.socket.nio)
flush0:931, AbstractChannel$AbstractUnsafe (io.netty.channel)
flush0:354, AbstractNioChannel$AbstractNioUnsafe (io.netty.channel.nio)
flush:895, AbstractChannel$AbstractUnsafe (io.netty.channel)
flush:1372, DefaultChannelPipeline$HeadContext (io.netty.channel)
invokeFlush0:921, AbstractChannelHandlerContext (io.netty.channel)
invokeFlush:907, AbstractChannelHandlerContext (io.netty.channel)
flush:893, AbstractChannelHandlerContext (io.netty.channel)
flush:125, ChannelOutboundHandlerAdapter (io.netty.channel)
invokeFlush0:925, AbstractChannelHandlerContext (io.netty.channel)
invokeWriteAndFlush:941, AbstractChannelHandlerContext (io.netty.channel)
write:966, AbstractChannelHandlerContext (io.netty.channel)
writeAndFlush:934, AbstractChannelHandlerContext (io.netty.channel)
write:83, CommandsQueue (org.redisson.client.handler)
invokeWrite0:879, AbstractChannelHandlerContext (io.netty.channel)
invokeWriteAndFlush:940, AbstractChannelHandlerContext (io.netty.channel)
run:1247, AbstractChannelHandlerContext$WriteTask (io.netty.channel)
runTask$$$capture:174, AbstractEventExecutor (io.netty.util.concurrent)
runTask:-1, AbstractEventExecutor (io.netty.util.concurrent)
 - Async stack trace
addTask:-1, SingleThreadEventExecutor (io.netty.util.concurrent)
execute:836, SingleThreadEventExecutor (io.netty.util.concurrent)
execute0:827, SingleThreadEventExecutor (io.netty.util.concurrent)
execute:817, SingleThreadEventExecutor (io.netty.util.concurrent)
safeExecute:1165, AbstractChannelHandlerContext (io.netty.channel)
write:972, AbstractChannelHandlerContext (io.netty.channel)
writeAndFlush:934, AbstractChannelHandlerContext (io.netty.channel)
writeAndFlush:984, AbstractChannelHandlerContext (io.netty.channel)
writeAndFlush:1025, DefaultChannelPipeline (io.netty.channel)
writeAndFlush:306, AbstractChannel (io.netty.channel)
send:206, RedisConnection (org.redisson.client)
sendCommand:590, RedisExecutor (org.redisson.command)
lambda$execute$3:164, RedisExecutor (org.redisson.command)
uniWhenComplete:863, CompletableFuture (java.util.concurrent)
uniWhenCompleteStage:887, CompletableFuture (java.util.concurrent)
whenComplete:2325, CompletableFuture (java.util.concurrent)
execute:149, RedisExecutor (org.redisson.command)
async:526, CommandAsyncService (org.redisson.command)
readAsync:292, CommandAsyncService (org.redisson.command)
getAsync:140, RedissonBucket (org.redisson)
get:135, RedissonBucket (org.redisson)
testApp:59, AppTest (com.demo.redission)
invoke:104, DirectMethodHandleAccessor (jdk.internal.reflect)
invoke:577, Method (java.lang.reflect)
runTest:154, TestCase (junit.framework)
runBare:127, TestCase (junit.framework)
protect:106, TestResult$1 (junit.framework)
runProtected:124, TestResult (junit.framework)
run:109, TestResult (junit.framework)
run:118, TestCase (junit.framework)
doRun:116, TestRunner (junit.textui)
doRun:117, JUnit3IdeaTestRunner (com.intellij.junit3)
doRun:109, TestRunner (junit.textui)
startRunnerWithArgs:38, JUnit3IdeaTestRunner (com.intellij.junit3)
execute:38, IdeaTestRunner$Repeater$1 (com.intellij.rt.junit)
repeat:11, TestsRepeater (com.intellij.rt.execution.junit)
startRunnerWithArgs:35, IdeaTestRunner$Repeater (com.intellij.rt.junit)
prepareStreamsAndStart:235, JUnitStarter (com.intellij.rt.junit)
main:54, JUnitStarter (com.intellij.rt.junit)

ByteBuf 到ByteBuffer 转换

    public ByteBuffer[] nioBuffers(int maxCount, long maxBytes) {
        ... 
        ByteBuffer[] nioBuffers = NIO_BUFFERS.get(threadLocalMap);
        Entry entry = flushedEntry;
        while (isFlushedEntry(entry) && entry.msg instanceof ByteBuf) {
            if (!entry.cancelled) {
                ByteBuf buf = (ByteBuf) entry.msg;
                final int readerIndex = buf.readerIndex();
                final int readableBytes = buf.writerIndex() - readerIndex;

                if (readableBytes > 0) {
                    nioBufferSize += readableBytes;
                    int count = entry.count;
                    if (count == -1) {
                        //noinspection ConstantValueVariableUse
                        entry.count = count = buf.nioBufferCount();
                    }
                    int neededSpace = min(maxCount, nioBufferCount + count);
                    if (neededSpace > nioBuffers.length) {
                        nioBuffers = expandNioBufferArray(nioBuffers, neededSpace, nioBufferCount);
                        NIO_BUFFERS.set(threadLocalMap, nioBuffers);
                    }
                    if (count == 1) {
                        ByteBuffer nioBuf = entry.buf;
                        if (nioBuf == null) {
                            // cache ByteBuffer as it may need to create a new ByteBuffer instance if its a
                            // derived buffer
                            entry.buf = nioBuf = buf.internalNioBuffer(readerIndex, readableBytes); // 转换
                        }
                        nioBuffers[nioBufferCount++] = nioBuf;
                    } else {
                        // The code exists in an extra method to ensure the method is not too big to inline as this
                        // branch is not very likely to get hit very frequently.
                        nioBufferCount = nioBuffers(entry, buf, nioBuffers, nioBufferCount, maxCount);   // 转换nioBuffers
                    }
                    if (nioBufferCount >= maxCount) {
                        break;
                    }
                }
            }
            entry = entry.next;
        }
        this.nioBufferCount = nioBufferCount;
        this.nioBufferSize = nioBufferSize;

        return nioBuffers;
    }

写入ByteBuf 转换到ByteBuffer 的过程, 最后调用的是PooledByteBuf.internalNioBuffer 这个方法

internalNioBuffer:158, PooledByteBuf (io.netty.buffer)
_internalNioBuffer:194, PooledByteBuf (io.netty.buffer)
internalNioBuffer:207, PooledByteBuf (io.netty.buffer)
nioBuffers:447, ChannelOutboundBuffer (io.netty.channel)
doWrite:399, NioSocketChannel (io.netty.channel.socket.nio)
flush0:931, AbstractChannel$AbstractUnsafe (io.netty.channel)
flush0:354, AbstractNioChannel$AbstractNioUnsafe (io.netty.channel.nio)
flush:895, AbstractChannel$AbstractUnsafe (io.netty.channel)
flush:1372, DefaultChannelPipeline$HeadContext (io.netty.channel)
invokeFlush0:921, AbstractChannelHandlerContext (io.netty.channel)
invokeFlush:907, AbstractChannelHandlerContext (io.netty.channel)
flush:893, AbstractChannelHandlerContext (io.netty.channel)
flush:125, ChannelOutboundHandlerAdapter (io.netty.channel)
invokeFlush0:925, AbstractChannelHandlerContext (io.netty.channel)
invokeWriteAndFlush:941, AbstractChannelHandlerContext (io.netty.channel)
write:966, AbstractChannelHandlerContext (io.netty.channel)
writeAndFlush:934, AbstractChannelHandlerContext (io.netty.channel)
write:83, CommandsQueue (org.redisson.client.handler)
invokeWrite0:879, AbstractChannelHandlerContext (io.netty.channel)
invokeWriteAndFlush:940, AbstractChannelHandlerContext (io.netty.channel)
run:1247, AbstractChannelHandlerContext$WriteTask (io.netty.channel)
runTask$$$capture:174, AbstractEventExecutor (io.netty.util.concurrent)
runTask:-1, AbstractEventExecutor (io.netty.util.concurrent)
 - Async stack trace
addTask:-1, SingleThreadEventExecutor (io.netty.util.concurrent)
execute:836, SingleThreadEventExecutor (io.netty.util.concurrent)
execute0:827, SingleThreadEventExecutor (io.netty.util.concurrent)
execute:817, SingleThreadEventExecutor (io.netty.util.concurrent)
safeExecute:1165, AbstractChannelHandlerContext (io.netty.channel)
write:972, AbstractChannelHandlerContext (io.netty.channel)
writeAndFlush:934, AbstractChannelHandlerContext (io.netty.channel)
writeAndFlush:984, AbstractChannelHandlerContext (io.netty.channel)
writeAndFlush:1025, DefaultChannelPipeline (io.netty.channel)
writeAndFlush:306, AbstractChannel (io.netty.channel)
send:206, RedisConnection (org.redisson.client)
sync:215, RedisConnection (org.redisson.client)
sync:202, RedisConnection (org.redisson.client)
<init>:100, ClusterConnectionManager (org.redisson.cluster)
createConnectionManager:196, ConfigSupport (org.redisson.config)
<init>:68, Redisson (org.redisson)
create:109, Redisson (org.redisson)
main:24, App (com.demo.redission)

创建链接的过程：

createConnection:36, RedisConnectionHandler (org.redisson.client.handler)
channelRegistered:53, BaseConnectionHandler (org.redisson.client.handler)
invokeChannelRegistered:176, AbstractChannelHandlerContext (io.netty.channel)
invokeChannelRegistered:152, AbstractChannelHandlerContext (io.netty.channel) [2]
fireChannelRegistered:145, AbstractChannelHandlerContext (io.netty.channel)
channelRegistered:1383, DefaultChannelPipeline$HeadContext (io.netty.channel)
invokeChannelRegistered:172, AbstractChannelHandlerContext (io.netty.channel)
invokeChannelRegistered:152, AbstractChannelHandlerContext (io.netty.channel) [1]
fireChannelRegistered:815, DefaultChannelPipeline (io.netty.channel)
register0:517, AbstractChannel$AbstractUnsafe (io.netty.channel)
access$200:429, AbstractChannel$AbstractUnsafe (io.netty.channel)
run:486, AbstractChannel$AbstractUnsafe$1 (io.netty.channel)
runTask$$$capture:174, AbstractEventExecutor (io.netty.util.concurrent)
runTask:-1, AbstractEventExecutor (io.netty.util.concurrent)
 - Async stack trace
addTask:-1, SingleThreadEventExecutor (io.netty.util.concurrent)
execute:836, SingleThreadEventExecutor (io.netty.util.concurrent)
execute0:827, SingleThreadEventExecutor (io.netty.util.concurrent)
execute:817, SingleThreadEventExecutor (io.netty.util.concurrent)
register:483, AbstractChannel$AbstractUnsafe (io.netty.channel)
register:89, SingleThreadEventLoop (io.netty.channel)
register:83, SingleThreadEventLoop (io.netty.channel)
register:86, MultithreadEventLoopGroup (io.netty.channel)
initAndRegister:323, AbstractBootstrap (io.netty.bootstrap)
doResolveAndConnect:155, Bootstrap (io.netty.bootstrap)
connect:139, Bootstrap (io.netty.bootstrap)
lambda$connectAsync$1:220, RedisClient (org.redisson.client)
uniComposeStage:1187, CompletableFuture (java.util.concurrent)
thenCompose:2309, CompletableFuture (java.util.concurrent)
connectAsync:218, RedisClient (org.redisson.client)
connect:189, ClientConnectionsEntry (org.redisson.connection)
connect:249, ConnectionPool (org.redisson.connection.pool)
createConnection:274, ConnectionPool (org.redisson.connection.pool)
lambda$createConnection$1:112, ConnectionPool (org.redisson.connection.pool)
uniAcceptNow:757, CompletableFuture (java.util.concurrent)
uniAcceptStage:735, CompletableFuture (java.util.concurrent)
thenAccept:2182, CompletableFuture (java.util.concurrent)
createConnection:110, ConnectionPool (org.redisson.connection.pool)
initConnections:92, ConnectionPool (org.redisson.connection.pool)
add:69, ConnectionPool (org.redisson.connection.pool)
add:34, MasterConnectionPool (org.redisson.connection.pool)
lambda$setupMasterEntry$1:139, MasterSlaveEntry (org.redisson.connection)
uniComposeStage:1187, CompletableFuture (java.util.concurrent)
thenCompose:2309, CompletableFuture (java.util.concurrent)
setupMasterEntry:122, MasterSlaveEntry (org.redisson.connection)
setupMasterEntry:117, MasterSlaveEntry (org.redisson.connection)
setupMasterEntry:112, MasterSlaveEntry (org.redisson.connection)
initSingleEntry:330, MasterSlaveConnectionManager (org.redisson.connection)
<init>:146, MasterSlaveConnectionManager (org.redisson.connection)
<init>:30, SingleConnectionManager (org.redisson.connection)
createConnectionManager:190, ConfigSupport (org.redisson.config)
<init>:68, Redisson (org.redisson)
create:109, Redisson (org.redisson)
testApp:58, AppTest (com.demo.redission)
invoke:104, DirectMethodHandleAccessor (jdk.internal.reflect)
invoke:577, Method (java.lang.reflect)
runTest:154, TestCase (junit.framework)
runBare:127, TestCase (junit.framework)
protect:106, TestResult$1 (junit.framework)
runProtected:124, TestResult (junit.framework)
run:109, TestResult (junit.framework)
run:118, TestCase (junit.framework)
doRun:116, TestRunner (junit.textui)
doRun:117, JUnit3IdeaTestRunner (com.intellij.junit3)
doRun:109, TestRunner (junit.textui)
startRunnerWithArgs:38, JUnit3IdeaTestRunner (com.intellij.junit3)
execute:38, IdeaTestRunner$Repeater$1 (com.intellij.rt.junit)
repeat:11, TestsRepeater (com.intellij.rt.execution.junit)
startRunnerWithArgs:35, IdeaTestRunner$Repeater (com.intellij.rt.junit)
prepareStreamsAndStart:235, JUnitStarter (com.intellij.rt.junit)
main:54, JUnitStarter (com.intellij.rt.junit)

Bootstrap使用：

createBootstrap:122, RedisClient (org.redisson.client)
<init>:115, RedisClient (org.redisson.client)
create:77, RedisClient (org.redisson.client)
createClient:425, MasterSlaveConnectionManager (org.redisson.connection)
createClient:412, MasterSlaveConnectionManager (org.redisson.connection)
setupMasterEntry:116, MasterSlaveEntry (org.redisson.connection)
setupMasterEntry:112, MasterSlaveEntry (org.redisson.connection)
initSingleEntry:330, MasterSlaveConnectionManager (org.redisson.connection)
<init>:146, MasterSlaveConnectionManager (org.redisson.connection)
<init>:30, SingleConnectionManager (org.redisson.connection)
createConnectionManager:190, ConfigSupport (org.redisson.config)
<init>:68, Redisson (org.redisson)
create:109, Redisson (org.redisson)
testApp:58, AppTest (com.demo.redission)
invokeVirtual:-1, LambdaForm$DMH/0x0000000800c0c400 (java.lang.invoke)
invoke:-1, LambdaForm$MH/0x0000000800c0d800 (java.lang.invoke)
invokeExact_MT:-1, Invokers$Holder (java.lang.invoke)
invokeImpl:154, DirectMethodHandleAccessor (jdk.internal.reflect)
invoke:104, DirectMethodHandleAccessor (jdk.internal.reflect)
invoke:577, Method (java.lang.reflect)
runTest:154, TestCase (junit.framework)
runBare:127, TestCase (junit.framework)
protect:106, TestResult$1 (junit.framework)
runProtected:124, TestResult (junit.framework)
run:109, TestResult (junit.framework)
run:118, TestCase (junit.framework)
runTest:208, TestSuite (junit.framework)
run:203, TestSuite (junit.framework)
doRun:116, TestRunner (junit.textui)
doRun:117, JUnit3IdeaTestRunner (com.intellij.junit3)
doRun:109, TestRunner (junit.textui)
startRunnerWithArgs:38, JUnit3IdeaTestRunner (com.intellij.junit3)
execute:38, IdeaTestRunner$Repeater$1 (com.intellij.rt.junit)
repeat:11, TestsRepeater (com.intellij.rt.execution.junit)
startRunnerWithArgs:35, IdeaTestRunner$Repeater (com.intellij.rt.junit)
prepareStreamsAndStart:235, JUnitStarter (com.intellij.rt.junit)
main:54, JUnitStarter (com.intellij.rt.junit)

future 使用：

handleResult:547, RedisExecutor (org.redisson.command)
checkAttemptPromise:524, RedisExecutor (org.redisson.command)
lambda$execute$4:176, RedisExecutor (org.redisson.command)
accept:-1, RedisExecutor$$Lambda$85/0x0000000800d64c28 (org.redisson.command)
uniWhenComplete:863, CompletableFuture (java.util.concurrent)
tryFire:841, CompletableFuture$UniWhenComplete (java.util.concurrent)
postComplete:510, CompletableFuture (java.util.concurrent)
complete:2147, CompletableFuture (java.util.concurrent)
completeResponse:467, CommandDecoder (org.redisson.client.handler)
handleResult:461, CommandDecoder (org.redisson.client.handler)
decode:340, CommandDecoder (org.redisson.client.handler)
decodeCommand:205, CommandDecoder (org.redisson.client.handler)
decode:144, CommandDecoder (org.redisson.client.handler)
decode:120, CommandDecoder (org.redisson.client.handler)
decodeRemovalReentryProtection:529, ByteToMessageDecoder (io.netty.handler.codec)
callDecode:366, ReplayingDecoder (io.netty.handler.codec)
channelRead:290, ByteToMessageDecoder (io.netty.handler.codec)
invokeChannelRead:444, AbstractChannelHandlerContext (io.netty.channel)
invokeChannelRead:420, AbstractChannelHandlerContext (io.netty.channel)
fireChannelRead:412, AbstractChannelHandlerContext (io.netty.channel)
channelRead:1410, DefaultChannelPipeline$HeadContext (io.netty.channel)
invokeChannelRead:440, AbstractChannelHandlerContext (io.netty.channel)
invokeChannelRead:420, AbstractChannelHandlerContext (io.netty.channel)
fireChannelRead:919, DefaultChannelPipeline (io.netty.channel)
read:166, AbstractNioByteChannel$NioByteUnsafe (io.netty.channel.nio)
processSelectedKey:788, NioEventLoop (io.netty.channel.nio)
processSelectedKeysOptimized:724, NioEventLoop (io.netty.channel.nio)
processSelectedKeys:650, NioEventLoop (io.netty.channel.nio)
run:562, NioEventLoop (io.netty.channel.nio)
run:997, SingleThreadEventExecutor$4 (io.netty.util.concurrent)
run:74, ThreadExecutorMap$2 (io.netty.util.internal)
run:30, FastThreadLocalRunnable (io.netty.util.concurrent)
run:833, Thread (java.lang)

redis 解码

/home/dai/.m2/repository/org/redisson/redisson/3.19.0/redisson-3.19.0-sources.jar!/org/redisson/client/handler/RedisChannelInitializer.java
   @Override
    protected void initChannel(Channel ch) throws Exception {
        initSsl(config, ch);
        
        if (type == Type.PLAIN) {
            ch.pipeline().addLast(new RedisConnectionHandler(redisClient));
        } else {
            ch.pipeline().addLast(new RedisPubSubConnectionHandler(redisClient));
        }

        ch.pipeline().addLast(
            connectionWatchdog,
            CommandEncoder.INSTANCE,
            CommandBatchEncoder.INSTANCE);

        if (type == Type.PLAIN) {
            ch.pipeline().addLast(new CommandsQueue());
        } else {
            ch.pipeline().addLast(new CommandsQueuePubSub());
        }

        if (pingConnectionHandler != null) {
            ch.pipeline().addLast(pingConnectionHandler);
        }
        
        if (type == Type.PLAIN) {
            ch.pipeline().addLast(new CommandDecoder(config.getAddress().getScheme()));  // 解码
        } else {
            ch.pipeline().addLast(new CommandPubSubDecoder(config));
        }

        ch.pipeline().addLast(new ErrorsLoggingHandler());

        config.getNettyHook().afterChannelInitialization(ch);
    }
    

redission future 回调：

handleResult:547, RedisExecutor (org.redisson.command)
checkAttemptPromise:524, RedisExecutor (org.redisson.command)
lambda$execute$4:176, RedisExecutor (org.redisson.command)
accept:-1, RedisExecutor$$Lambda$86/0x0000000800d64c18 (org.redisson.command)
uniWhenComplete:863, CompletableFuture (java.util.concurrent)
tryFire:841, CompletableFuture$UniWhenComplete (java.util.concurrent)
postComplete:510, CompletableFuture (java.util.concurrent)
complete:2147, CompletableFuture (java.util.concurrent)
completeResponse:467, CommandDecoder (org.redisson.client.handler)
handleResult:461, CommandDecoder (org.redisson.client.handler)
decode:392, CommandDecoder (org.redisson.client.handler)
decodeCommand:205, CommandDecoder (org.redisson.client.handler)
decode:144, CommandDecoder (org.redisson.client.handler)
decode:120, CommandDecoder (org.redisson.client.handler)
decodeRemovalReentryProtection:529, ByteToMessageDecoder (io.netty.handler.codec)
callDecode:366, ReplayingDecoder (io.netty.handler.codec)
channelRead:290, ByteToMessageDecoder (io.netty.handler.codec)
invokeChannelRead:444, AbstractChannelHandlerContext (io.netty.channel)
invokeChannelRead:420, AbstractChannelHandlerContext (io.netty.channel)
fireChannelRead:412, AbstractChannelHandlerContext (io.netty.channel)
channelRead:1410, DefaultChannelPipeline$HeadContext (io.netty.channel)
invokeChannelRead:440, AbstractChannelHandlerContext (io.netty.channel)
invokeChannelRead:420, AbstractChannelHandlerContext (io.netty.channel)
fireChannelRead:919, DefaultChannelPipeline (io.netty.channel)
read:166, AbstractNioByteChannel$NioByteUnsafe (io.netty.channel.nio)
processSelectedKey:788, NioEventLoop (io.netty.channel.nio)
processSelectedKeysOptimized:724, NioEventLoop (io.netty.channel.nio)
processSelectedKeys:650, NioEventLoop (io.netty.channel.nio)
run:562, NioEventLoop (io.netty.channel.nio)
run:997, SingleThreadEventExecutor$4 (io.netty.util.concurrent)
run:74, ThreadExecutorMap$2 (io.netty.util.internal)
run:30, FastThreadLocalRunnable (io.netty.util.concurrent)
run:833, Thread (java.lang)

cms gc

December 26, 2022 · One min read

背景

了解java 的cms gc 算法

路径

src\hotspot\share\gc\serial\defNewGeneration.cpp
// Ignores "ref" and calls allocate().
oop Generation::promote(oop obj, size_t obj_size) {
  assert(obj_size == obj->size(), "bad obj_size passed in");

#ifndef PRODUCT
  if (GenCollectedHeap::heap()->promotion_should_fail()) {
    return NULL;
  }
#endif  // #ifndef PRODUCT

  HeapWord* result = allocate(obj_size, false);
  if (result != NULL) {
    Copy::aligned_disjoint_words(cast_from_oop<HeapWord*>(obj), result, obj_size);
    return cast_to_oop(result);
  } else {
    GenCollectedHeap* gch = GenCollectedHeap::heap();
    return gch->handle_failed_promotion(this, obj, obj_size);
  }
}

thread pool

December 26, 2022 · One min read

背景

线程池是多个线程的集合。java的线程池主要使用

ExecutorService
ThreadPoolExecutor
Executor
Executors

java基础

December 26, 2022 · One min read

查看默认选项

$ java -XX:+PrintCommandLineFlags -version 
-XX:ConcGCThreads=3 -XX:G1ConcRefinementThreads=10 -XX:GCDrainStackTargetSize=64 -XX:InitialHeapSize=525168320 -XX:MarkStackSize=4194304 -XX:MaxHeapSize=8402693120 -XX:MinHeapSize=6815736 -XX:+PrintCommandLineFlags -XX:ReservedCodeCacheSize=251658240 -XX:+SegmentedCodeCache -XX:+UseCompressedClassPointers -XX:+UseCompressedOops -XX:+UseG1GC 
openjdk version "17.0.5" 2022-10-18
OpenJDK Runtime Environment (build 17.0.5+8-Ubuntu-2ubuntu122.04)
OpenJDK 64-Bit Server VM (build 17.0.5+8-Ubuntu-2ubuntu122.04, mixed mode, sharing)

java io

java 的io分字节流：字节流都是 inputStream/outPutStream 字符流： reader/writer

方向：

类名	方法：读、写	字节、字符
inputStream	read	byte
outputStream	write	byte
reader	read	char
writer	write	char

java arraycopy

December 22, 2022 · 16 min read

背景

了解arraycopy的实现,是浅拷贝还是深拷贝

arrays

在了解arraycopy之前,先了解arrays

在jls里面有很详细的描述

In the Java programming language, arrays are objects (§4.3.1), are dynamically created
An array object contains a number of variables. The number of variables may be zero, in which case the array is said to be empty. The variables contained in an array have no names; instead they are referenced by array access expressions that use non-negative integer index values. These variables are called the components of the array. If an array has n components, we say n is the length of the array; the components of the array are referenced using integer indices from 0 to n - 1, inclusive.

arrays:

类型:Object
arrays对象持有的是变量variables

变量 `variables`

A variable is a storage location and has an associated type, sometimes called its compile-time type, that is either a primitive type (§4.2) or a reference type (§4.3).

A variable's value is changed by an assignment (§15.26) or by a prefix or postfix ++ (increment) or -- (decrement) operator (§15.14.2, §15.14.3, §15.15.1, §15.15.2).

variable 由两部分组成:

type
- primitive type
- reference type
value
- primitive value
- reference value

4.3.1 Objects
An object is a class instance or an array.
The reference values (often just references) are pointers to these objects, and a
special null reference, which refers to no object.

jni 实现

src\hotspot\share\oops\objArrayKlass.cpp

void ObjArrayKlass::copy_array(arrayOop s, int src_pos, arrayOop d,
                               int dst_pos, int length, TRAPS) {
  assert(s->is_objArray(), "must be obj array");

  if (!d->is_objArray()) {
    ResourceMark rm(THREAD);
    stringStream ss;
    if (d->is_typeArray()) {
      ss.print("arraycopy: type mismatch: can not copy object array[] into %s[]",
               type2name_tab[ArrayKlass::cast(d->klass())->element_type()]);
    } else {
      ss.print("arraycopy: destination type %s is not an array", d->klass()->external_name());
    }
    THROW_MSG(vmSymbols::java_lang_ArrayStoreException(), ss.as_string());
  }

  // Check is all offsets and lengths are non negative
  if (src_pos < 0 || dst_pos < 0 || length < 0) {
    // Pass specific exception reason.
    ResourceMark rm(THREAD);
    stringStream ss;
    if (src_pos < 0) {
      ss.print("arraycopy: source index %d out of bounds for object array[%d]",
               src_pos, s->length());
    } else if (dst_pos < 0) {
      ss.print("arraycopy: destination index %d out of bounds for object array[%d]",
               dst_pos, d->length());
    } else {
      ss.print("arraycopy: length %d is negative", length);
    }
    THROW_MSG(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), ss.as_string());
  }
  // Check if the ranges are valid
  if ((((unsigned int) length + (unsigned int) src_pos) > (unsigned int) s->length()) ||
      (((unsigned int) length + (unsigned int) dst_pos) > (unsigned int) d->length())) {
    // Pass specific exception reason.
    ResourceMark rm(THREAD);
    stringStream ss;
    if (((unsigned int) length + (unsigned int) src_pos) > (unsigned int) s->length()) {
      ss.print("arraycopy: last source index %u out of bounds for object array[%d]",
               (unsigned int) length + (unsigned int) src_pos, s->length());
    } else {
      ss.print("arraycopy: last destination index %u out of bounds for object array[%d]",
               (unsigned int) length + (unsigned int) dst_pos, d->length());
    }
    THROW_MSG(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), ss.as_string());
  }

  // Special case. Boundary cases must be checked first
  // This allows the following call: copy_array(s, s.length(), d.length(), 0).
  // This is correct, since the position is supposed to be an 'in between point', i.e., s.length(),
  // points to the right of the last element.
  if (length==0) {
    return;
  }
  if (UseCompressedOops) {
    size_t src_offset = (size_t) objArrayOopDesc::obj_at_offset<narrowOop>(src_pos);
    size_t dst_offset = (size_t) objArrayOopDesc::obj_at_offset<narrowOop>(dst_pos);
    assert(arrayOopDesc::obj_offset_to_raw<narrowOop>(s, src_offset, NULL) ==
           objArrayOop(s)->obj_at_addr<narrowOop>(src_pos), "sanity");
    assert(arrayOopDesc::obj_offset_to_raw<narrowOop>(d, dst_offset, NULL) ==
           objArrayOop(d)->obj_at_addr<narrowOop>(dst_pos), "sanity");
    do_copy(s, src_offset, d, dst_offset, length, CHECK);
  } else {
    size_t src_offset = (size_t) objArrayOopDesc::obj_at_offset<oop>(src_pos);
    size_t dst_offset = (size_t) objArrayOopDesc::obj_at_offset<oop>(dst_pos);
    assert(arrayOopDesc::obj_offset_to_raw<oop>(s, src_offset, NULL) ==
           objArrayOop(s)->obj_at_addr<oop>(src_pos), "sanity");
    assert(arrayOopDesc::obj_offset_to_raw<oop>(d, dst_offset, NULL) ==
           objArrayOop(d)->obj_at_addr<oop>(dst_pos), "sanity");
    do_copy(s, src_offset, d, dst_offset, length, CHECK);
  }
}

(gdb) bt
#0  Copy::conjoint_oops_atomic (count=6, to=0x62a434ee8, from=0x62a42f220) at /home/dai/jdk/src/hotspot/share/utilities/copy.hpp:164
#1  AccessInternal::arraycopy_conjoint_oops (src=0x62a42f220, dst=0x62a434ee8, length=6) at /home/dai/jdk/src/hotspot/share/oops/accessBackend.cpp:94
#2  0x00007ffff7067317 in RawAccessBarrierArrayCopy::arraycopy<18112614ul, narrowOop> (length=6, dst_raw=<optimized out>, dst_offset_in_bytes=0, dst_obj=..., src_raw=0x62a42f220, src_offset_in_bytes=0, 
    src_obj=...) at /home/dai/jdk/src/hotspot/share/oops/accessBackend.inline.hpp:270
#3  RawAccessBarrier<18112614ul>::arraycopy<narrowOop> (length=6, dst_raw=0x62a434ee8, dst_offset_in_bytes=0, dst_obj=..., src_raw=<optimized out>, src_offset_in_bytes=0, src_obj=...)
    at /home/dai/jdk/src/hotspot/share/oops/accessBackend.inline.hpp:344
#4  RawAccessBarrier<18112614ul>::oop_arraycopy<narrowOop> (length=6, dst_raw=0x62a434ee8, dst_offset_in_bytes=0, dst_obj=..., src_raw=<optimized out>, src_offset_in_bytes=0, src_obj=...)
    at /home/dai/jdk/src/hotspot/share/oops/accessBackend.inline.hpp:128
#5  ModRefBarrierSet::AccessBarrier<18112614ul, G1BarrierSet>::oop_arraycopy_in_heap<narrowOop> (length=6, dst_raw=0x62a434ee8, dst_offset_in_bytes=<optimized out>, dst_obj=..., 
    src_raw=<optimized out>, src_offset_in_bytes=<optimized out>, src_obj=...) at /home/dai/jdk/src/hotspot/share/gc/shared/modRefBarrierSet.inline.hpp:108
#6  AccessInternal::PostRuntimeDispatch<G1BarrierSet::AccessBarrier<18112614ul, G1BarrierSet>, (AccessInternal::BarrierType)8, 18112614ul>::oop_access_barrier<HeapWordImpl*> (src_obj=..., 
    src_offset_in_bytes=<optimized out>, src_raw=<optimized out>, dst_obj=..., dst_offset_in_bytes=<optimized out>, dst_raw=<optimized out>, length=6)
    at /home/dai/jdk/src/hotspot/share/oops/access.inline.hpp:142
#7  0x00007ffff7063f43 in AccessInternal::RuntimeDispatch<18112582ul, HeapWordImpl*, (AccessInternal::BarrierType)8>::arraycopy_init (src_obj=..., src_offset_in_bytes=16, src_raw=0x0, dst_obj=..., 
    dst_offset_in_bytes=<optimized out>, dst_raw=<optimized out>, length=<optimized out>) at /home/dai/jdk/src/hotspot/share/oops/access.inline.hpp:339
#8  0x00007ffff7061a0e in AccessInternal::RuntimeDispatch<18112582ul, HeapWordImpl*, (AccessInternal::BarrierType)8>::arraycopy (length=<optimized out>, dst_raw=<optimized out>, 
    dst_offset_in_bytes=<optimized out>, dst_obj=..., src_raw=<optimized out>, src_offset_in_bytes=<optimized out>, src_obj=...) at /home/dai/jdk/src/hotspot/share/oops/accessBackend.hpp:554
#9  AccessInternal::PreRuntimeDispatch::arraycopy<18112582ul, HeapWordImpl*> (length=<optimized out>, dst_raw=<optimized out>, dst_offset_in_bytes=<optimized out>, dst_obj=..., src_raw=<optimized out>, 
    src_offset_in_bytes=<optimized out>, src_obj=...) at /home/dai/jdk/src/hotspot/share/oops/accessBackend.hpp:907
#10 AccessInternal::arraycopy_reduce_types<18112580ul> (length=<optimized out>, dst_raw=<optimized out>, dst_offset_in_bytes=<optimized out>, dst_obj=..., src_raw=<optimized out>, 
    src_offset_in_bytes=<optimized out>, src_obj=...) at /home/dai/jdk/src/hotspot/share/oops/accessBackend.hpp:1054
#11 AccessInternal::arraycopy<18087940ul, HeapWordImpl*> (length=<optimized out>, dst_raw=<optimized out>, dst_offset_in_bytes=<optimized out>, dst_obj=..., src_raw=<optimized out>, 
    src_offset_in_bytes=<optimized out>, src_obj=...) at /home/dai/jdk/src/hotspot/share/oops/accessBackend.hpp:1208
#12 Access<18087936ul>::oop_arraycopy<HeapWordImpl*> (length=<optimized out>, dst_raw=<optimized out>, dst_offset_in_bytes=<optimized out>, dst_obj=..., src_raw=<optimized out>, 
    src_offset_in_bytes=<optimized out>, src_obj=...) at /home/dai/jdk/src/hotspot/share/oops/access.hpp:137
#13 ArrayAccess<16777216ul>::oop_arraycopy (length=<optimized out>, dst_offset_in_bytes=<optimized out>, dst_obj=..., src_offset_in_bytes=<optimized out>, src_obj=...)
    at /home/dai/jdk/src/hotspot/share/oops/access.hpp:323
#14 ObjArrayKlass::do_copy (this=this@entry=0x800058a00, s=..., src_offset=src_offset@entry=16, d=..., dst_offset=dst_offset@entry=16, length=length@entry=6, __the_thread__=0x7ffff0028f20)
    at /home/dai/jdk/src/hotspot/share/oops/objArrayKlass.cpp:213
#15 0x00007ffff7062e33 in ObjArrayKlass::copy_array (this=0x800058a00, s=..., src_pos=<optimized out>, d=..., dst_pos=<optimized out>, length=6, __the_thread__=0x7ffff0028f20)
    at /home/dai/jdk/src/hotspot/share/oops/oopsHierarchy.hpp:85
#16 0x00007ffff6b2d75f in JVM_ArrayCopy (env=<optimized out>, ignored=<optimized out>, src=<optimized out>, src_pos=0, dst=<optimized out>, dst_pos=0, length=6)
    at /home/dai/jdk/src/hotspot/share/prims/jvm.cpp:298

x86的汇编代码如下src/hotspot/os_cpu/linux_x86/linux_x86_64.S

        # Support for void Copy::arrayof_conjoint_jlongs(jlong* from,
        #                                                jlong* to,
        #                                                size_t count)
        # Equivalent to
        #   conjoint_jlongs_atomic
        #   arrayof_conjoint_oops
        #   conjoint_oops_atomic
        #
        # rdi - from
        # rsi - to
        # rdx - count, treated as ssize_t
        #
        .p2align 4,,15
	.type    _Copy_arrayof_conjoint_jlongs,@function
	.type    _Copy_conjoint_jlongs_atomic,@function
_Copy_arrayof_conjoint_jlongs:
_Copy_conjoint_jlongs_atomic:
        cmpq     %rdi,%rsi
        leaq     -8(%rdi,%rdx,8),%rax # from + count*8 - 8
        jbe      acl_CopyRight
        cmpq     %rax,%rsi
        jbe      acl_CopyLeft 
acl_CopyRight:
        leaq     -8(%rsi,%rdx,8),%rcx # to + count*8 - 8
        negq     %rdx
        jmp      3f
1:      movq     8(%rax,%rdx,8),%rsi
        movq     %rsi,8(%rcx,%rdx,8)
        addq     $1,%rdx
        jnz      1b
        ret
        .p2align 4,,15
2:      movq     -24(%rax,%rdx,8),%rsi
        movq     %rsi,-24(%rcx,%rdx,8)
        movq     -16(%rax,%rdx,8),%rsi
        movq     %rsi,-16(%rcx,%rdx,8)
        movq     -8(%rax,%rdx,8),%rsi
        movq     %rsi,-8(%rcx,%rdx,8)
        movq     (%rax,%rdx,8),%rsi
        movq     %rsi,(%rcx,%rdx,8)
3:      addq     $4,%rdx
        jle      2b
        subq     $4,%rdx
        jl       1b
        ret
4:      movq     -8(%rdi,%rdx,8),%rcx
        movq     %rcx,-8(%rsi,%rdx,8)
        subq     $1,%rdx
        jnz      4b
        ret
        .p2align 4,,15
5:      movq     24(%rdi,%rdx,8),%rcx
        movq     %rcx,24(%rsi,%rdx,8)
        movq     16(%rdi,%rdx,8),%rcx
        movq     %rcx,16(%rsi,%rdx,8)
        movq     8(%rdi,%rdx,8),%rcx
        movq     %rcx,8(%rsi,%rdx,8)
        movq     (%rdi,%rdx,8),%rcx
        movq     %rcx,(%rsi,%rdx,8)
acl_CopyLeft:
        subq     $4,%rdx
        jge      5b
        addq     $4,%rdx
        jg       4b
        ret

这里的文件jz jne 是相对段的偏移，然后试试编译成字节码之后看效果

这里的as是将汇编代码编译成二进制代码

$ as src/hotspot/os_cpu/linux_x86/linux_x86_64.S
$ objdump -S  a.out 

a.out:     file format elf64-x86-64


Disassembly of section .text:

0000000000000000 <SpinPause>:
   0:	f3 90                	pause  
   2:	48 c7 c0 01 00 00 00 	mov    $0x1,%rax
   9:	c3                   	ret    
   a:	66 0f 1f 44 00 00    	nopw   0x0(%rax,%rax,1)

0000000000000010 <_Copy_arrayof_conjoint_bytes>:
  10:	49 89 d0             	mov    %rdx,%r8
  13:	48 c1 ea 03          	shr    $0x3,%rdx
  17:	48 39 fe             	cmp    %rdi,%rsi
  1a:	4a 8d 44 07 ff       	lea    -0x1(%rdi,%r8,1),%rax
  1f:	76 09                	jbe    2a <acb_CopyRight>
  21:	48 39 c6             	cmp    %rax,%rsi
  24:	0f 86 9e 00 00 00    	jbe    c8 <acb_CopyLeft>

000000000000002a <acb_CopyRight>:
  2a:	48 8d 44 d7 f8       	lea    -0x8(%rdi,%rdx,8),%rax
  2f:	48 8d 4c d6 f8       	lea    -0x8(%rsi,%rdx,8),%rcx
  34:	48 f7 da             	neg    %rdx
  37:	eb 7d                	jmp    b6 <acb_CopyRight+0x8c>
  39:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  40:	48 8b 74 d0 08       	mov    0x8(%rax,%rdx,8),%rsi
  45:	48 89 74 d1 08       	mov    %rsi,0x8(%rcx,%rdx,8)
  4a:	48 83 c2 01          	add    $0x1,%rdx
  4e:	75 f0                	jne    40 <acb_CopyRight+0x16>
  50:	49 f7 c0 04 00 00 00 	test   $0x4,%r8
  57:	74 0e                	je     67 <acb_CopyRight+0x3d>
  59:	8b 70 08             	mov    0x8(%rax),%esi
  5c:	89 71 08             	mov    %esi,0x8(%rcx)
  5f:	48 83 c0 04          	add    $0x4,%rax
  63:	48 83 c1 04          	add    $0x4,%rcx
  67:	49 f7 c0 02 00 00 00 	test   $0x2,%r8
  6e:	74 0c                	je     7c <acb_CopyRight+0x52>
  70:	66 8b 70 08          	mov    0x8(%rax),%si
  74:	66 89 71 08          	mov    %si,0x8(%rcx)
  78:	48 83 c1 02          	add    $0x2,%rcx
  7c:	49 f7 c0 01 00 00 00 	test   $0x1,%r8
  83:	74 08                	je     8d <acb_CopyRight+0x63>
  85:	42 8a 44 07 ff       	mov    -0x1(%rdi,%r8,1),%al
  8a:	88 41 08             	mov    %al,0x8(%rcx)
  8d:	c3                   	ret    
  8e:	66 90                	xchg   %ax,%ax
  90:	48 8b 74 d0 e8       	mov    -0x18(%rax,%rdx,8),%rsi
  95:	48 89 74 d1 e8       	mov    %rsi,-0x18(%rcx,%rdx,8)
  9a:	48 8b 74 d0 f0       	mov    -0x10(%rax,%rdx,8),%rsi
  9f:	48 89 74 d1 f0       	mov    %rsi,-0x10(%rcx,%rdx,8)
  a4:	48 8b 74 d0 f8       	mov    -0x8(%rax,%rdx,8),%rsi
  a9:	48 89 74 d1 f8       	mov    %rsi,-0x8(%rcx,%rdx,8)
  ae:	48 8b 34 d0          	mov    (%rax,%rdx,8),%rsi
  b2:	48 89 34 d1          	mov    %rsi,(%rcx,%rdx,8)
  b6:	48 83 c2 04          	add    $0x4,%rdx
  ba:	7e d4                	jle    90 <acb_CopyRight+0x66>
  bc:	48 83 ea 04          	sub    $0x4,%rdx
  c0:	0f 8c 7a ff ff ff    	jl     40 <acb_CopyRight+0x16>
  c6:	eb 88                	jmp    50 <acb_CopyRight+0x26>

00000000000000c8 <acb_CopyLeft>:
  c8:	49 f7 c0 01 00 00 00 	test   $0x1,%r8
  cf:	74 0e                	je     df <acb_CopyLeft+0x17>
  d1:	42 8a 4c 07 ff       	mov    -0x1(%rdi,%r8,1),%cl
  d6:	42 88 4c 06 ff       	mov    %cl,-0x1(%rsi,%r8,1)
  db:	49 83 e8 01          	sub    $0x1,%r8
  df:	49 f7 c0 02 00 00 00 	test   $0x2,%r8
  e6:	74 0c                	je     f4 <acb_CopyLeft+0x2c>
  e8:	66 42 8b 4c 07 fe    	mov    -0x2(%rdi,%r8,1),%cx
  ee:	66 42 89 4c 06 fe    	mov    %cx,-0x2(%rsi,%r8,1)
  f4:	49 f7 c0 04 00 00 00 	test   $0x4,%r8
  fb:	74 59                	je     156 <acb_CopyLeft+0x8e>
  fd:	8b 0c d7             	mov    (%rdi,%rdx,8),%ecx
 100:	89 0c d6             	mov    %ecx,(%rsi,%rdx,8)
 103:	eb 51                	jmp    156 <acb_CopyLeft+0x8e>
 105:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
 10c:	00 00 00 00 
 110:	48 8b 4c d7 f8       	mov    -0x8(%rdi,%rdx,8),%rcx
 115:	48 89 4c d6 f8       	mov    %rcx,-0x8(%rsi,%rdx,8)
 11a:	48 83 ea 01          	sub    $0x1,%rdx
 11e:	75 f0                	jne    110 <acb_CopyLeft+0x48>
 120:	c3                   	ret    
 121:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
 128:	00 00 00 00 
 12c:	0f 1f 40 00          	nopl   0x0(%rax)
 130:	48 8b 4c d7 18       	mov    0x18(%rdi,%rdx,8),%rcx
 135:	48 89 4c d6 18       	mov    %rcx,0x18(%rsi,%rdx,8)
 13a:	48 8b 4c d7 10       	mov    0x10(%rdi,%rdx,8),%rcx
 13f:	48 89 4c d6 10       	mov    %rcx,0x10(%rsi,%rdx,8)
 144:	48 8b 4c d7 08       	mov    0x8(%rdi,%rdx,8),%rcx
 149:	48 89 4c d6 08       	mov    %rcx,0x8(%rsi,%rdx,8)
 14e:	48 8b 0c d7          	mov    (%rdi,%rdx,8),%rcx
 152:	48 89 0c d6          	mov    %rcx,(%rsi,%rdx,8)
 156:	48 83 ea 04          	sub    $0x4,%rdx
 15a:	7d d4                	jge    130 <acb_CopyLeft+0x68>
 15c:	48 83 c2 04          	add    $0x4,%rdx
 160:	7f ae                	jg     110 <acb_CopyLeft+0x48>
 162:	c3                   	ret    
 163:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
 16a:	00 00 00 00 
 16e:	66 90                	xchg   %ax,%ax

0000000000000170 <_Copy_arrayof_conjoint_jshorts>:
 170:	49 89 d0             	mov    %rdx,%r8
 173:	48 c1 ea 02          	shr    $0x2,%rdx
 177:	48 39 fe             	cmp    %rdi,%rsi
 17a:	4a 8d 44 47 fe       	lea    -0x2(%rdi,%r8,2),%rax
 17f:	76 05                	jbe    186 <acs_CopyRight>
 181:	48 39 c6             	cmp    %rax,%rsi
 184:	76 7e                	jbe    204 <acs_CopyLeft>

0000000000000186 <acs_CopyRight>:
 186:	48 8d 44 d7 f8       	lea    -0x8(%rdi,%rdx,8),%rax
 18b:	48 8d 4c d6 f8       	lea    -0x8(%rsi,%rdx,8),%rcx
 190:	48 f7 da             	neg    %rdx
 193:	eb 61                	jmp    1f6 <acs_CopyRight+0x70>
 195:	48 8b 74 d0 08       	mov    0x8(%rax,%rdx,8),%rsi
 19a:	48 89 74 d1 08       	mov    %rsi,0x8(%rcx,%rdx,8)
 19f:	48 83 c2 01          	add    $0x1,%rdx
 1a3:	75 f0                	jne    195 <acs_CopyRight+0xf>
 1a5:	49 f7 c0 02 00 00 00 	test   $0x2,%r8
 1ac:	74 0a                	je     1b8 <acs_CopyRight+0x32>
 1ae:	8b 70 08             	mov    0x8(%rax),%esi
 1b1:	89 71 08             	mov    %esi,0x8(%rcx)
 1b4:	48 83 c1 04          	add    $0x4,%rcx
 1b8:	49 f7 c0 01 00 00 00 	test   $0x1,%r8
 1bf:	74 0a                	je     1cb <acs_CopyRight+0x45>
 1c1:	66 42 8b 74 47 fe    	mov    -0x2(%rdi,%r8,2),%si
 1c7:	66 89 71 08          	mov    %si,0x8(%rcx)
 1cb:	c3                   	ret    
 1cc:	0f 1f 40 00          	nopl   0x0(%rax)
 1d0:	48 8b 74 d0 e8       	mov    -0x18(%rax,%rdx,8),%rsi
 1d5:	48 89 74 d1 e8       	mov    %rsi,-0x18(%rcx,%rdx,8)
 1da:	48 8b 74 d0 f0       	mov    -0x10(%rax,%rdx,8),%rsi
 1df:	48 89 74 d1 f0       	mov    %rsi,-0x10(%rcx,%rdx,8)
 1e4:	48 8b 74 d0 f8       	mov    -0x8(%rax,%rdx,8),%rsi
 1e9:	48 89 74 d1 f8       	mov    %rsi,-0x8(%rcx,%rdx,8)
 1ee:	48 8b 34 d0          	mov    (%rax,%rdx,8),%rsi
 1f2:	48 89 34 d1          	mov    %rsi,(%rcx,%rdx,8)
 1f6:	48 83 c2 04          	add    $0x4,%rdx
 1fa:	7e d4                	jle    1d0 <acs_CopyRight+0x4a>
 1fc:	48 83 ea 04          	sub    $0x4,%rdx
 200:	7c 93                	jl     195 <acs_CopyRight+0xf>
 202:	eb a1                	jmp    1a5 <acs_CopyRight+0x1f>

0000000000000204 <acs_CopyLeft>:
 204:	49 f7 c0 01 00 00 00 	test   $0x1,%r8
 20b:	74 0c                	je     219 <acs_CopyLeft+0x15>
 20d:	66 42 8b 4c 47 fe    	mov    -0x2(%rdi,%r8,2),%cx
 213:	66 42 89 4c 46 fe    	mov    %cx,-0x2(%rsi,%r8,2)
 219:	49 f7 c0 02 00 00 00 	test   $0x2,%r8
 220:	74 44                	je     266 <acs_CopyLeft+0x62>
 222:	8b 0c d7             	mov    (%rdi,%rdx,8),%ecx
 225:	89 0c d6             	mov    %ecx,(%rsi,%rdx,8)
 228:	eb 3c                	jmp    266 <acs_CopyLeft+0x62>
 22a:	48 8b 4c d7 f8       	mov    -0x8(%rdi,%rdx,8),%rcx
 22f:	48 89 4c d6 f8       	mov    %rcx,-0x8(%rsi,%rdx,8)
 234:	48 83 ea 01          	sub    $0x1,%rdx
 238:	75 f0                	jne    22a <acs_CopyLeft+0x26>
 23a:	c3                   	ret    
 23b:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
 240:	48 8b 4c d7 18       	mov    0x18(%rdi,%rdx,8),%rcx
 245:	48 89 4c d6 18       	mov    %rcx,0x18(%rsi,%rdx,8)
 24a:	48 8b 4c d7 10       	mov    0x10(%rdi,%rdx,8),%rcx
 24f:	48 89 4c d6 10       	mov    %rcx,0x10(%rsi,%rdx,8)
 254:	48 8b 4c d7 08       	mov    0x8(%rdi,%rdx,8),%rcx
 259:	48 89 4c d6 08       	mov    %rcx,0x8(%rsi,%rdx,8)
 25e:	48 8b 0c d7          	mov    (%rdi,%rdx,8),%rcx
 262:	48 89 0c d6          	mov    %rcx,(%rsi,%rdx,8)
 266:	48 83 ea 04          	sub    $0x4,%rdx
 26a:	7d d4                	jge    240 <acs_CopyLeft+0x3c>
 26c:	48 83 c2 04          	add    $0x4,%rdx
 270:	7f b8                	jg     22a <acs_CopyLeft+0x26>
 272:	c3                   	ret    
 273:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
 27a:	00 00 00 00 
 27e:	66 90                	xchg   %ax,%ax

0000000000000280 <_Copy_arrayof_conjoint_jints>:
 280:	49 89 d0             	mov    %rdx,%r8
 283:	48 d1 ea             	shr    %rdx
 286:	48 39 fe             	cmp    %rdi,%rsi
 289:	4a 8d 44 87 fc       	lea    -0x4(%rdi,%r8,4),%rax
 28e:	76 05                	jbe    295 <aci_CopyRight>
 290:	48 39 c6             	cmp    %rax,%rsi
 293:	76 6f                	jbe    304 <aci_CopyLeft>

0000000000000295 <aci_CopyRight>:
 295:	48 8d 44 d7 f8       	lea    -0x8(%rdi,%rdx,8),%rax
 29a:	48 8d 4c d6 f8       	lea    -0x8(%rsi,%rdx,8),%rcx
 29f:	48 f7 da             	neg    %rdx
 2a2:	eb 52                	jmp    2f6 <aci_CopyRight+0x61>
 2a4:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
 2ab:	00 00 00 00 
 2af:	90                   	nop
 2b0:	48 8b 74 d0 08       	mov    0x8(%rax,%rdx,8),%rsi
 2b5:	48 89 74 d1 08       	mov    %rsi,0x8(%rcx,%rdx,8)
 2ba:	48 83 c2 01          	add    $0x1,%rdx
 2be:	75 f0                	jne    2b0 <aci_CopyRight+0x1b>
 2c0:	49 f7 c0 01 00 00 00 	test   $0x1,%r8
 2c7:	74 06                	je     2cf <aci_CopyRight+0x3a>
 2c9:	8b 70 08             	mov    0x8(%rax),%esi
 2cc:	89 71 08             	mov    %esi,0x8(%rcx)
 2cf:	c3                   	ret    
 2d0:	48 8b 74 d0 e8       	mov    -0x18(%rax,%rdx,8),%rsi
 2d5:	48 89 74 d1 e8       	mov    %rsi,-0x18(%rcx,%rdx,8)
 2da:	48 8b 74 d0 f0       	mov    -0x10(%rax,%rdx,8),%rsi
 2df:	48 89 74 d1 f0       	mov    %rsi,-0x10(%rcx,%rdx,8)
 2e4:	48 8b 74 d0 f8       	mov    -0x8(%rax,%rdx,8),%rsi
 2e9:	48 89 74 d1 f8       	mov    %rsi,-0x8(%rcx,%rdx,8)
 2ee:	48 8b 34 d0          	mov    (%rax,%rdx,8),%rsi
 2f2:	48 89 34 d1          	mov    %rsi,(%rcx,%rdx,8)
 2f6:	48 83 c2 04          	add    $0x4,%rdx
 2fa:	7e d4                	jle    2d0 <aci_CopyRight+0x3b>
 2fc:	48 83 ea 04          	sub    $0x4,%rdx
 300:	7c ae                	jl     2b0 <aci_CopyRight+0x1b>
 302:	eb bc                	jmp    2c0 <aci_CopyRight+0x2b>

0000000000000304 <aci_CopyLeft>:
 304:	49 f7 c0 01 00 00 00 	test   $0x1,%r8
 30b:	74 49                	je     356 <aci_CopyLeft+0x52>
 30d:	42 8b 4c 87 fc       	mov    -0x4(%rdi,%r8,4),%ecx
 312:	42 89 4c 86 fc       	mov    %ecx,-0x4(%rsi,%r8,4)
 317:	eb 3d                	jmp    356 <aci_CopyLeft+0x52>
 319:	48 8b 4c d7 f8       	mov    -0x8(%rdi,%rdx,8),%rcx
 31e:	48 89 4c d6 f8       	mov    %rcx,-0x8(%rsi,%rdx,8)
 323:	48 83 ea 01          	sub    $0x1,%rdx
 327:	75 f0                	jne    319 <aci_CopyLeft+0x15>
 329:	c3                   	ret    
 32a:	66 0f 1f 44 00 00    	nopw   0x0(%rax,%rax,1)
 330:	48 8b 4c d7 18       	mov    0x18(%rdi,%rdx,8),%rcx
 335:	48 89 4c d6 18       	mov    %rcx,0x18(%rsi,%rdx,8)
 33a:	48 8b 4c d7 10       	mov    0x10(%rdi,%rdx,8),%rcx
 33f:	48 89 4c d6 10       	mov    %rcx,0x10(%rsi,%rdx,8)
 344:	48 8b 4c d7 08       	mov    0x8(%rdi,%rdx,8),%rcx
 349:	48 89 4c d6 08       	mov    %rcx,0x8(%rsi,%rdx,8)
 34e:	48 8b 0c d7          	mov    (%rdi,%rdx,8),%rcx
 352:	48 89 0c d6          	mov    %rcx,(%rsi,%rdx,8)
 356:	48 83 ea 04          	sub    $0x4,%rdx
 35a:	7d d4                	jge    330 <aci_CopyLeft+0x2c>
 35c:	48 83 c2 04          	add    $0x4,%rdx
 360:	7f b7                	jg     319 <aci_CopyLeft+0x15>
 362:	c3                   	ret    
 363:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
 36a:	00 00 00 00 
 36e:	66 90                	xchg   %ax,%ax

0000000000000370 <_Copy_arrayof_conjoint_jlongs>:
 370:	48 39 fe             	cmp    %rdi,%rsi
 373:	48 8d 44 d7 f8       	lea    -0x8(%rdi,%rdx,8),%rax
 378:	76 09                	jbe    383 <acl_CopyRight>
 37a:	48 39 c6             	cmp    %rax,%rsi
 37d:	0f 86 93 00 00 00    	jbe    416 <acl_CopyLeft>

0000000000000383 <acl_CopyRight>:
 383:	48 8d 4c d6 f8       	lea    -0x8(%rsi,%rdx,8),%rcx
 388:	48 f7 da             	neg    %rdx
 38b:	eb 39                	jmp    3c6 <acl_CopyRight+0x43>
 38d:	48 8b 74 d0 08       	mov    0x8(%rax,%rdx,8),%rsi
 392:	48 89 74 d1 08       	mov    %rsi,0x8(%rcx,%rdx,8)
 397:	48 83 c2 01          	add    $0x1,%rdx
 39b:	75 f0                	jne    38d <acl_CopyRight+0xa>
 39d:	c3                   	ret    
 39e:	66 90                	xchg   %ax,%ax
 3a0:	48 8b 74 d0 e8       	mov    -0x18(%rax,%rdx,8),%rsi
 3a5:	48 89 74 d1 e8       	mov    %rsi,-0x18(%rcx,%rdx,8)
 3aa:	48 8b 74 d0 f0       	mov    -0x10(%rax,%rdx,8),%rsi
 3af:	48 89 74 d1 f0       	mov    %rsi,-0x10(%rcx,%rdx,8)
 3b4:	48 8b 74 d0 f8       	mov    -0x8(%rax,%rdx,8),%rsi
 3b9:	48 89 74 d1 f8       	mov    %rsi,-0x8(%rcx,%rdx,8)
 3be:	48 8b 34 d0          	mov    (%rax,%rdx,8),%rsi
 3c2:	48 89 34 d1          	mov    %rsi,(%rcx,%rdx,8)
 3c6:	48 83 c2 04          	add    $0x4,%rdx
 3ca:	7e d4                	jle    3a0 <acl_CopyRight+0x1d>
 3cc:	48 83 ea 04          	sub    $0x4,%rdx
 3d0:	7c bb                	jl     38d <acl_CopyRight+0xa>
 3d2:	c3                   	ret    
 3d3:	48 8b 4c d7 f8       	mov    -0x8(%rdi,%rdx,8),%rcx
 3d8:	48 89 4c d6 f8       	mov    %rcx,-0x8(%rsi,%rdx,8)
 3dd:	48 83 ea 01          	sub    $0x1,%rdx
 3e1:	75 f0                	jne    3d3 <acl_CopyRight+0x50>
 3e3:	c3                   	ret    
 3e4:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
 3eb:	00 00 00 00 
 3ef:	90                   	nop
 3f0:	48 8b 4c d7 18       	mov    0x18(%rdi,%rdx,8),%rcx
 3f5:	48 89 4c d6 18       	mov    %rcx,0x18(%rsi,%rdx,8)
 3fa:	48 8b 4c d7 10       	mov    0x10(%rdi,%rdx,8),%rcx
 3ff:	48 89 4c d6 10       	mov    %rcx,0x10(%rsi,%rdx,8)
 404:	48 8b 4c d7 08       	mov    0x8(%rdi,%rdx,8),%rcx
 409:	48 89 4c d6 08       	mov    %rcx,0x8(%rsi,%rdx,8)
 40e:	48 8b 0c d7          	mov    (%rdi,%rdx,8),%rcx
 412:	48 89 0c d6          	mov    %rcx,(%rsi,%rdx,8)

0000000000000416 <acl_CopyLeft>:
 416:	48 83 ea 04          	sub    $0x4,%rdx
 41a:	7d d4                	jge    3f0 <acl_CopyRight+0x6d>
 41c:	48 83 c2 04          	add    $0x4,%rdx
 420:	7f b1                	jg     3d3 <acl_CopyRight+0x50>
 422:	c3                   	ret  

总结

arrays 包含一堆变量.变量有两种值:primitive值 , reference值.

所以copyarrays复制的是变量,也就是复制的是引用

Copies an array from the specified source array, beginning at the specified position, to the specified position of the destination array. A subsequence of array components are copied from the source array referenced by src to the destination array referenced by dest. The number of components copied is equal to the length argument. The components at positions srcPos through srcPos+length-1 in the source array are copied into positions destPos through destPos+length-1, respectively, of the destination array.

rabbitmq spring boot

December 22, 2022 · 5 min read

背景

了解springboot 的配置怎么加载的,了解spring-boot怎么读取rabbitmq配置的

堆栈

spring boot 设置配置

configure:40, SimpleRabbitListenerContainerFactoryConfigurer (org.springframework.boot.autoconfigure.amqp)
simpleRabbitListenerContainerFactory:81, RabbitAnnotationDrivenConfiguration (org.springframework.boot.autoconfigure.amqp)
invoke0:-1, NativeMethodAccessorImpl (jdk.internal.reflect)
invoke:62, NativeMethodAccessorImpl (jdk.internal.reflect)
invoke:43, DelegatingMethodAccessorImpl (jdk.internal.reflect)
invoke:566, Method (java.lang.reflect)
instantiate:154, SimpleInstantiationStrategy (org.springframework.beans.factory.support)
instantiate:652, ConstructorResolver (org.springframework.beans.factory.support)
instantiateUsingFactoryMethod:637, ConstructorResolver (org.springframework.beans.factory.support)
instantiateUsingFactoryMethod:1341, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
createBeanInstance:1181, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
doCreateBean:556, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
createBean:516, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
lambda$doGetBean$0:324, AbstractBeanFactory (org.springframework.beans.factory.support)
getObject:-1, 1555928242 (org.springframework.beans.factory.support.AbstractBeanFactory$$Lambda$290)
getSingleton:234, DefaultSingletonBeanRegistry (org.springframework.beans.factory.support)
doGetBean:322, AbstractBeanFactory (org.springframework.beans.factory.support)
getBean:202, AbstractBeanFactory (org.springframework.beans.factory.support)
preInstantiateSingletons:897, DefaultListableBeanFactory (org.springframework.beans.factory.support)
finishBeanFactoryInitialization:879, AbstractApplicationContext (org.springframework.context.support)
refresh:551, AbstractApplicationContext (org.springframework.context.support)
refresh:755, SpringApplication (org.springframework.boot)
refresh:747, SpringApplication (org.springframework.boot)
refreshContext:402, SpringApplication (org.springframework.boot)
run:312, SpringApplication (org.springframework.boot)
loadContext:120, SpringBootContextLoader (org.springframework.boot.test.context)
loadContextInternal:99, DefaultCacheAwareContextLoaderDelegate (org.springframework.test.context.cache)
loadContext:124, DefaultCacheAwareContextLoaderDelegate (org.springframework.test.context.cache)
getApplicationContext:123, DefaultTestContext (org.springframework.test.context.support)
setUpRequestContextIfNecessary:190, ServletTestExecutionListener (org.springframework.test.context.web)
prepareTestInstance:132, ServletTestExecutionListener (org.springframework.test.context.web)
prepareTestInstance:244, TestContextManager (org.springframework.test.context)
createTest:227, SpringJUnit4ClassRunner (org.springframework.test.context.junit4)
runReflectiveCall:289, SpringJUnit4ClassRunner$1 (org.springframework.test.context.junit4)
run:12, ReflectiveCallable (org.junit.internal.runners.model)
methodBlock:291, SpringJUnit4ClassRunner (org.springframework.test.context.junit4)
runChild:246, SpringJUnit4ClassRunner (org.springframework.test.context.junit4)
runChild:97, SpringJUnit4ClassRunner (org.springframework.test.context.junit4)
run:331, ParentRunner$4 (org.junit.runners)
schedule:79, ParentRunner$1 (org.junit.runners)
runChildren:329, ParentRunner (org.junit.runners)
access$100:66, ParentRunner (org.junit.runners)
evaluate:293, ParentRunner$2 (org.junit.runners)
evaluate:61, RunBeforeTestClassCallbacks (org.springframework.test.context.junit4.statements)
evaluate:70, RunAfterTestClassCallbacks (org.springframework.test.context.junit4.statements)
evaluate:306, ParentRunner$3 (org.junit.runners)
run:413, ParentRunner (org.junit.runners)
run:190, SpringJUnit4ClassRunner (org.springframework.test.context.junit4)
run:137, JUnitCore (org.junit.runner)
startRunnerWithArgs:69, JUnit4IdeaTestRunner (com.intellij.junit4)
execute:38, IdeaTestRunner$Repeater$1 (com.intellij.rt.junit)
repeat:11, TestsRepeater (com.intellij.rt.execution.junit)
startRunnerWithArgs:35, IdeaTestRunner$Repeater (com.intellij.rt.junit)
prepareStreamsAndStart:235, JUnitStarter (com.intellij.rt.junit)
main:54, JUnitStarter (com.intellij.rt.junit)

设置属性

configure:40, SimpleRabbitListenerContainerFactoryConfigurer (org.springframework.boot.autoconfigure.amqp)
simpleRabbitListenerContainerFactory:81, RabbitAnnotationDrivenConfiguration (org.springframework.boot.autoconfigure.amqp)
invoke0:-1, NativeMethodAccessorImpl (jdk.internal.reflect)
invoke:62, NativeMethodAccessorImpl (jdk.internal.reflect)
invoke:43, DelegatingMethodAccessorImpl (jdk.internal.reflect)
invoke:566, Method (java.lang.reflect)
instantiate:154, SimpleInstantiationStrategy (org.springframework.beans.factory.support)
instantiate:652, ConstructorResolver (org.springframework.beans.factory.support)
instantiateUsingFactoryMethod:637, ConstructorResolver (org.springframework.beans.factory.support)
instantiateUsingFactoryMethod:1341, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
createBeanInstance:1181, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
doCreateBean:556, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
createBean:516, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
lambda$doGetBean$0:324, AbstractBeanFactory (org.springframework.beans.factory.support)
getObject:-1, 622043416 (org.springframework.beans.factory.support.AbstractBeanFactory$$Lambda$290)
getSingleton:234, DefaultSingletonBeanRegistry (org.springframework.beans.factory.support)
doGetBean:322, AbstractBeanFactory (org.springframework.beans.factory.support)
getBean:202, AbstractBeanFactory (org.springframework.beans.factory.support)
preInstantiateSingletons:897, DefaultListableBeanFactory (org.springframework.beans.factory.support)
finishBeanFactoryInitialization:879, AbstractApplicationContext (org.springframework.context.support)
refresh:551, AbstractApplicationContext (org.springframework.context.support)
refresh:755, SpringApplication (org.springframework.boot)
refresh:747, SpringApplication (org.springframework.boot)
refreshContext:402, SpringApplication (org.springframework.boot)
run:312, SpringApplication (org.springframework.boot)
loadContext:120, SpringBootContextLoader (org.springframework.boot.test.context)
loadContextInternal:99, DefaultCacheAwareContextLoaderDelegate (org.springframework.test.context.cache)
loadContext:124, DefaultCacheAwareContextLoaderDelegate (org.springframework.test.context.cache)
getApplicationContext:123, DefaultTestContext (org.springframework.test.context.support)
setUpRequestContextIfNecessary:190, ServletTestExecutionListener (org.springframework.test.context.web)
prepareTestInstance:132, ServletTestExecutionListener (org.springframework.test.context.web)
prepareTestInstance:244, TestContextManager (org.springframework.test.context)
createTest:227, SpringJUnit4ClassRunner (org.springframework.test.context.junit4)
runReflectiveCall:289, SpringJUnit4ClassRunner$1 (org.springframework.test.context.junit4)
run:12, ReflectiveCallable (org.junit.internal.runners.model)
methodBlock:291, SpringJUnit4ClassRunner (org.springframework.test.context.junit4)
runChild:246, SpringJUnit4ClassRunner (org.springframework.test.context.junit4)
runChild:97, SpringJUnit4ClassRunner (org.springframework.test.context.junit4)
run:331, ParentRunner$4 (org.junit.runners)
schedule:79, ParentRunner$1 (org.junit.runners)
runChildren:329, ParentRunner (org.junit.runners)
access$100:66, ParentRunner (org.junit.runners)
evaluate:293, ParentRunner$2 (org.junit.runners)
evaluate:61, RunBeforeTestClassCallbacks (org.springframework.test.context.junit4.statements)
evaluate:70, RunAfterTestClassCallbacks (org.springframework.test.context.junit4.statements)
evaluate:306, ParentRunner$3 (org.junit.runners)
run:413, ParentRunner (org.junit.runners)
run:190, SpringJUnit4ClassRunner (org.springframework.test.context.junit4)
run:137, JUnitCore (org.junit.runner)
startRunnerWithArgs:69, JUnit4IdeaTestRunner (com.intellij.junit4)
execute:38, IdeaTestRunner$Repeater$1 (com.intellij.rt.junit)
repeat:11, TestsRepeater (com.intellij.rt.execution.junit)
startRunnerWithArgs:35, IdeaTestRunner$Repeater (com.intellij.rt.junit)
prepareStreamsAndStart:235, JUnitStarter (com.intellij.rt.junit)
main:54, JUnitStarter (com.intellij.rt.junit)

rabbitmq 配置注入

<init>:57, RabbitAnnotationDrivenConfiguration (org.springframework.boot.autoconfigure.amqp)
newInstance0:-1, NativeConstructorAccessorImpl (jdk.internal.reflect)
newInstance:62, NativeConstructorAccessorImpl (jdk.internal.reflect)
newInstance:45, DelegatingConstructorAccessorImpl (jdk.internal.reflect)
newInstance:490, Constructor (java.lang.reflect)
instantiateClass:204, BeanUtils (org.springframework.beans)
instantiate:117, SimpleInstantiationStrategy (org.springframework.beans.factory.support)
instantiate:310, ConstructorResolver (org.springframework.beans.factory.support)
autowireConstructor:295, ConstructorResolver (org.springframework.beans.factory.support)
autowireConstructor:1361, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
createBeanInstance:1208, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
doCreateBean:556, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
createBean:516, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
lambda$doGetBean$0:324, AbstractBeanFactory (org.springframework.beans.factory.support)
getObject:-1, 809260538 (org.springframework.beans.factory.support.AbstractBeanFactory$$Lambda$290)
getSingleton:234, DefaultSingletonBeanRegistry (org.springframework.beans.factory.support)
doGetBean:322, AbstractBeanFactory (org.springframework.beans.factory.support)
getBean:202, AbstractBeanFactory (org.springframework.beans.factory.support)
preInstantiateSingletons:897, DefaultListableBeanFactory (org.springframework.beans.factory.support)
finishBeanFactoryInitialization:879, AbstractApplicationContext (org.springframework.context.support)
refresh:551, AbstractApplicationContext (org.springframework.context.support)
refresh:755, SpringApplication (org.springframework.boot)
refresh:747, SpringApplication (org.springframework.boot)
refreshContext:402, SpringApplication (org.springframework.boot)
run:312, SpringApplication (org.springframework.boot)
loadContext:120, SpringBootContextLoader (org.springframework.boot.test.context)
loadContextInternal:99, DefaultCacheAwareContextLoaderDelegate (org.springframework.test.context.cache)
loadContext:124, DefaultCacheAwareContextLoaderDelegate (org.springframework.test.context.cache)
getApplicationContext:123, DefaultTestContext (org.springframework.test.context.support)
setUpRequestContextIfNecessary:190, ServletTestExecutionListener (org.springframework.test.context.web)
prepareTestInstance:132, ServletTestExecutionListener (org.springframework.test.context.web)
prepareTestInstance:244, TestContextManager (org.springframework.test.context)
createTest:227, SpringJUnit4ClassRunner (org.springframework.test.context.junit4)
runReflectiveCall:289, SpringJUnit4ClassRunner$1 (org.springframework.test.context.junit4)
run:12, ReflectiveCallable (org.junit.internal.runners.model)
methodBlock:291, SpringJUnit4ClassRunner (org.springframework.test.context.junit4)
runChild:246, SpringJUnit4ClassRunner (org.springframework.test.context.junit4)
runChild:97, SpringJUnit4ClassRunner (org.springframework.test.context.junit4)
run:331, ParentRunner$4 (org.junit.runners)
schedule:79, ParentRunner$1 (org.junit.runners)
runChildren:329, ParentRunner (org.junit.runners)
access$100:66, ParentRunner (org.junit.runners)
evaluate:293, ParentRunner$2 (org.junit.runners)
evaluate:61, RunBeforeTestClassCallbacks (org.springframework.test.context.junit4.statements)
evaluate:70, RunAfterTestClassCallbacks (org.springframework.test.context.junit4.statements)
evaluate:306, ParentRunner$3 (org.junit.runners)
run:413, ParentRunner (org.junit.runners)
run:190, SpringJUnit4ClassRunner (org.springframework.test.context.junit4)
run:137, JUnitCore (org.junit.runner)
startRunnerWithArgs:69, JUnit4IdeaTestRunner (com.intellij.junit4)
execute:38, IdeaTestRunner$Repeater$1 (com.intellij.rt.junit)
repeat:11, TestsRepeater (com.intellij.rt.execution.junit)
startRunnerWithArgs:35, IdeaTestRunner$Repeater (com.intellij.rt.junit)
prepareStreamsAndStart:235, JUnitStarter (com.intellij.rt.junit)
main:54, JUnitStarter (com.intellij.rt.junit)

初始化空难的配置

<init>:47, RabbitProperties (org.springframework.boot.autoconfigure.amqp)
newInstance0:-1, NativeConstructorAccessorImpl (jdk.internal.reflect)
newInstance:62, NativeConstructorAccessorImpl (jdk.internal.reflect)
newInstance:45, DelegatingConstructorAccessorImpl (jdk.internal.reflect)
newInstance:490, Constructor (java.lang.reflect)
instantiateClass:204, BeanUtils (org.springframework.beans)
instantiate:87, SimpleInstantiationStrategy (org.springframework.beans.factory.support)
instantiateBean:1315, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
createBeanInstance:1218, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
doCreateBean:556, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
createBean:516, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
lambda$doGetBean$0:324, AbstractBeanFactory (org.springframework.beans.factory.support)
getObject:-1, 47925969 (org.springframework.beans.factory.support.AbstractBeanFactory$$Lambda$290)
getSingleton:234, DefaultSingletonBeanRegistry (org.springframework.beans.factory.support)
doGetBean:322, AbstractBeanFactory (org.springframework.beans.factory.support)
getBean:202, AbstractBeanFactory (org.springframework.beans.factory.support)
resolveCandidate:276, DependencyDescriptor (org.springframework.beans.factory.config)
doResolveDependency:1307, DefaultListableBeanFactory (org.springframework.beans.factory.support)
resolveDependency:1227, DefaultListableBeanFactory (org.springframework.beans.factory.support)
resolveAutowiredArgument:886, ConstructorResolver (org.springframework.beans.factory.support)
createArgumentArray:790, ConstructorResolver (org.springframework.beans.factory.support)
instantiateUsingFactoryMethod:540, ConstructorResolver (org.springframework.beans.factory.support)
instantiateUsingFactoryMethod:1341, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
createBeanInstance:1181, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
doCreateBean:556, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
createBean:516, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
lambda$doGetBean$0:324, AbstractBeanFactory (org.springframework.beans.factory.support)
getObject:-1, 47925969 (org.springframework.beans.factory.support.AbstractBeanFactory$$Lambda$290)
getSingleton:234, DefaultSingletonBeanRegistry (org.springframework.beans.factory.support)
doGetBean:322, AbstractBeanFactory (org.springframework.beans.factory.support)
getBean:202, AbstractBeanFactory (org.springframework.beans.factory.support)
resolveCandidate:276, DependencyDescriptor (org.springframework.beans.factory.config)
doResolveDependency:1307, DefaultListableBeanFactory (org.springframework.beans.factory.support)
resolveDependency:1227, DefaultListableBeanFactory (org.springframework.beans.factory.support)
resolveAutowiredArgument:886, ConstructorResolver (org.springframework.beans.factory.support)
createArgumentArray:790, ConstructorResolver (org.springframework.beans.factory.support)
instantiateUsingFactoryMethod:540, ConstructorResolver (org.springframework.beans.factory.support)
instantiateUsingFactoryMethod:1341, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
createBeanInstance:1181, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
doCreateBean:556, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
createBean:516, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
lambda$doGetBean$0:324, AbstractBeanFactory (org.springframework.beans.factory.support)
getObject:-1, 47925969 (org.springframework.beans.factory.support.AbstractBeanFactory$$Lambda$290)
getSingleton:234, DefaultSingletonBeanRegistry (org.springframework.beans.factory.support)
doGetBean:322, AbstractBeanFactory (org.springframework.beans.factory.support)
getBean:202, AbstractBeanFactory (org.springframework.beans.factory.support)
resolveCandidate:276, DependencyDescriptor (org.springframework.beans.factory.config)
doResolveDependency:1307, DefaultListableBeanFactory (org.springframework.beans.factory.support)
resolveDependency:1227, DefaultListableBeanFactory (org.springframework.beans.factory.support)
resolveFieldValue:657, AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement (org.springframework.beans.factory.annotation)
inject:640, AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement (org.springframework.beans.factory.annotation)
inject:119, InjectionMetadata (org.springframework.beans.factory.annotation)
postProcessProperties:399, AutowiredAnnotationBeanPostProcessor (org.springframework.beans.factory.annotation)
populateBean:1425, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
doCreateBean:593, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
createBean:516, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
lambda$doGetBean$0:324, AbstractBeanFactory (org.springframework.beans.factory.support)
getObject:-1, 47925969 (org.springframework.beans.factory.support.AbstractBeanFactory$$Lambda$290)
getSingleton:234, DefaultSingletonBeanRegistry (org.springframework.beans.factory.support)
doGetBean:322, AbstractBeanFactory (org.springframework.beans.factory.support)
getBean:202, AbstractBeanFactory (org.springframework.beans.factory.support)
resolveCandidate:276, DependencyDescriptor (org.springframework.beans.factory.config)
doResolveDependency:1307, DefaultListableBeanFactory (org.springframework.beans.factory.support)
resolveDependency:1227, DefaultListableBeanFactory (org.springframework.beans.factory.support)
resolveFieldValue:657, AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement (org.springframework.beans.factory.annotation)
inject:640, AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement (org.springframework.beans.factory.annotation)
inject:119, InjectionMetadata (org.springframework.beans.factory.annotation)
postProcessProperties:399, AutowiredAnnotationBeanPostProcessor (org.springframework.beans.factory.annotation)
populateBean:1425, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
doCreateBean:593, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
createBean:516, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
lambda$doGetBean$0:324, AbstractBeanFactory (org.springframework.beans.factory.support)
getObject:-1, 47925969 (org.springframework.beans.factory.support.AbstractBeanFactory$$Lambda$290)
getSingleton:234, DefaultSingletonBeanRegistry (org.springframework.beans.factory.support)
doGetBean:322, AbstractBeanFactory (org.springframework.beans.factory.support)
getBean:207, AbstractBeanFactory (org.springframework.beans.factory.support)
resolveBeanByName:453, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
autowireResource:527, CommonAnnotationBeanPostProcessor (org.springframework.context.annotation)
getResource:497, CommonAnnotationBeanPostProcessor (org.springframework.context.annotation)
getResourceToInject:650, CommonAnnotationBeanPostProcessor$ResourceElement (org.springframework.context.annotation)
inject:228, InjectionMetadata$InjectedElement (org.springframework.beans.factory.annotation)
inject:119, InjectionMetadata (org.springframework.beans.factory.annotation)
postProcessProperties:318, CommonAnnotationBeanPostProcessor (org.springframework.context.annotation)
populateBean:1425, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
doCreateBean:593, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
createBean:516, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
lambda$doGetBean$0:324, AbstractBeanFactory (org.springframework.beans.factory.support)
getObject:-1, 47925969 (org.springframework.beans.factory.support.AbstractBeanFactory$$Lambda$290)
getSingleton:234, DefaultSingletonBeanRegistry (org.springframework.beans.factory.support)
doGetBean:322, AbstractBeanFactory (org.springframework.beans.factory.support)
getBean:202, AbstractBeanFactory (org.springframework.beans.factory.support)
preInstantiateSingletons:897, DefaultListableBeanFactory (org.springframework.beans.factory.support)
finishBeanFactoryInitialization:879, AbstractApplicationContext (org.springframework.context.support)
refresh:551, AbstractApplicationContext (org.springframework.context.support)
refresh:755, SpringApplication (org.springframework.boot)
refresh:747, SpringApplication (org.springframework.boot)
refreshContext:402, SpringApplication (org.springframework.boot)
run:312, SpringApplication (org.springframework.boot)
loadContext:120, SpringBootContextLoader (org.springframework.boot.test.context)
loadContextInternal:99, DefaultCacheAwareContextLoaderDelegate (org.springframework.test.context.cache)
loadContext:124, DefaultCacheAwareContextLoaderDelegate (org.springframework.test.context.cache)
getApplicationContext:123, DefaultTestContext (org.springframework.test.context.support)
setUpRequestContextIfNecessary:190, ServletTestExecutionListener (org.springframework.test.context.web)
prepareTestInstance:132, ServletTestExecutionListener (org.springframework.test.context.web)
prepareTestInstance:244, TestContextManager (org.springframework.test.context)
createTest:227, SpringJUnit4ClassRunner (org.springframework.test.context.junit4)
runReflectiveCall:289, SpringJUnit4ClassRunner$1 (org.springframework.test.context.junit4)
run:12, ReflectiveCallable (org.junit.internal.runners.model)
methodBlock:291, SpringJUnit4ClassRunner (org.springframework.test.context.junit4)
runChild:246, SpringJUnit4ClassRunner (org.springframework.test.context.junit4)
runChild:97, SpringJUnit4ClassRunner (org.springframework.test.context.junit4)
run:331, ParentRunner$4 (org.junit.runners)
schedule:79, ParentRunner$1 (org.junit.runners)
runChildren:329, ParentRunner (org.junit.runners)
access$100:66, ParentRunner (org.junit.runners)
evaluate:293, ParentRunner$2 (org.junit.runners)
evaluate:61, RunBeforeTestClassCallbacks (org.springframework.test.context.junit4.statements)
evaluate:70, RunAfterTestClassCallbacks (org.springframework.test.context.junit4.statements)
evaluate:306, ParentRunner$3 (org.junit.runners)
run:413, ParentRunner (org.junit.runners)
run:190, SpringJUnit4ClassRunner (org.springframework.test.context.junit4)
run:137, JUnitCore (org.junit.runner)
startRunnerWithArgs:69, JUnit4IdeaTestRunner (com.intellij.junit4)
execute:38, IdeaTestRunner$Repeater$1 (com.intellij.rt.junit)
repeat:11, TestsRepeater (com.intellij.rt.execution.junit)
startRunnerWithArgs:35, IdeaTestRunner$Repeater (com.intellij.rt.junit)
prepareStreamsAndStart:235, JUnitStarter (com.intellij.rt.junit)
main:54, JUnitStarter (com.intellij.rt.junit)

nacos 获取配置

December 22, 2022 · 2 min read

背景

nacos 是一个服务注册/发现中间件

获取配置的堆栈

run:744, ClientWorker$ConfigRpcTransportClient$4 (com.alibaba.nacos.client.config.impl)
call:515, Executors$RunnableAdapter (java.util.concurrent)
run$$$capture:264, FutureTask (java.util.concurrent)
run:-1, FutureTask (java.util.concurrent)
 - Async stack trace
<init>:151, FutureTask (java.util.concurrent)
<init>:215, ScheduledThreadPoolExecutor$ScheduledFutureTask (java.util.concurrent)
schedule:561, ScheduledThreadPoolExecutor (java.util.concurrent)
startInternal:739, ClientWorker$ConfigRpcTransportClient (com.alibaba.nacos.client.config.impl)
start:255, ConfigTransportClient (com.alibaba.nacos.client.config.impl)
<init>:472, ClientWorker (com.alibaba.nacos.client.config.impl)
<init>:81, NacosConfigService (com.alibaba.nacos.client.config)
newInstance0:-2, NativeConstructorAccessorImpl (jdk.internal.reflect)
newInstance:62, NativeConstructorAccessorImpl (jdk.internal.reflect)
newInstance:45, DelegatingConstructorAccessorImpl (jdk.internal.reflect)
newInstance:490, Constructor (java.lang.reflect)
createConfigService:43, ConfigFactory (com.alibaba.nacos.api.config)
createConfigService:44, NacosFactory (com.alibaba.nacos.api)
createConfigService:55, NacosConfigManager (com.alibaba.cloud.nacos)
<init>:43, NacosConfigManager (com.alibaba.cloud.nacos)
nacosConfigManager:43, NacosConfigBootstrapConfiguration (com.alibaba.cloud.nacos)
invoke0:-2, NativeMethodAccessorImpl (jdk.internal.reflect)
invoke:62, NativeMethodAccessorImpl (jdk.internal.reflect)
invoke:43, DelegatingMethodAccessorImpl (jdk.internal.reflect)
invoke:566, Method (java.lang.reflect)
instantiate:154, SimpleInstantiationStrategy (org.springframework.beans.factory.support)
instantiate:652, ConstructorResolver (org.springframework.beans.factory.support)
instantiateUsingFactoryMethod:637, ConstructorResolver (org.springframework.beans.factory.support)
instantiateUsingFactoryMethod:1341, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
createBeanInstance:1181, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
doCreateBean:556, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
createBean:516, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
lambda$doGetBean$0:324, AbstractBeanFactory (org.springframework.beans.factory.support)
getSingleton:234, DefaultSingletonBeanRegistry (org.springframework.beans.factory.support)
doGetBean:322, AbstractBeanFactory (org.springframework.beans.factory.support)
getBean:202, AbstractBeanFactory (org.springframework.beans.factory.support)
resolveCandidate:276, DependencyDescriptor (org.springframework.beans.factory.config)
doResolveDependency:1307, DefaultListableBeanFactory (org.springframework.beans.factory.support)
resolveDependency:1227, DefaultListableBeanFactory (org.springframework.beans.factory.support)
resolveAutowiredArgument:886, ConstructorResolver (org.springframework.beans.factory.support)
createArgumentArray:790, ConstructorResolver (org.springframework.beans.factory.support)
instantiateUsingFactoryMethod:540, ConstructorResolver (org.springframework.beans.factory.support)
instantiateUsingFactoryMethod:1341, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
createBeanInstance:1181, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
doCreateBean:556, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
createBean:516, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
lambda$doGetBean$0:324, AbstractBeanFactory (org.springframework.beans.factory.support)
getSingleton:234, DefaultSingletonBeanRegistry (org.springframework.beans.factory.support)
doGetBean:322, AbstractBeanFactory (org.springframework.beans.factory.support)
getBean:202, AbstractBeanFactory (org.springframework.beans.factory.support)
resolveCandidate:276, DependencyDescriptor (org.springframework.beans.factory.config)
addCandidateEntry:1525, DefaultListableBeanFactory (org.springframework.beans.factory.support)
findAutowireCandidates:1489, DefaultListableBeanFactory (org.springframework.beans.factory.support)
resolveMultipleBeans:1378, DefaultListableBeanFactory (org.springframework.beans.factory.support)
doResolveDependency:1265, DefaultListableBeanFactory (org.springframework.beans.factory.support)
resolveDependency:1227, DefaultListableBeanFactory (org.springframework.beans.factory.support)
resolveFieldValue:657, AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement (org.springframework.beans.factory.annotation)
inject:640, AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement (org.springframework.beans.factory.annotation)
inject:119, InjectionMetadata (org.springframework.beans.factory.annotation)
postProcessProperties:399, AutowiredAnnotationBeanPostProcessor (org.springframework.beans.factory.annotation)
populateBean:1425, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
doCreateBean:593, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
createBean:516, AbstractAutowireCapableBeanFactory (org.springframework.beans.factory.support)
lambda$doGetBean$0:324, AbstractBeanFactory (org.springframework.beans.factory.support)
getSingleton:234, DefaultSingletonBeanRegistry (org.springframework.beans.factory.support)
doGetBean:322, AbstractBeanFactory (org.springframework.beans.factory.support)
getBean:202, AbstractBeanFactory (org.springframework.beans.factory.support)
preInstantiateSingletons:897, DefaultListableBeanFactory (org.springframework.beans.factory.support)
finishBeanFactoryInitialization:879, AbstractApplicationContext (org.springframework.context.support)
refresh:551, AbstractApplicationContext (org.springframework.context.support)
refresh:755, SpringApplication (org.springframework.boot)
refresh:747, SpringApplication (org.springframework.boot)
refreshContext:402, SpringApplication (org.springframework.boot)
run:312, SpringApplication (org.springframework.boot)
run:140, SpringApplicationBuilder (org.springframework.boot.builder)
bootstrapServiceContext:212, BootstrapApplicationListener (org.springframework.cloud.bootstrap)
onApplicationEvent:117, BootstrapApplicationListener (org.springframework.cloud.bootstrap)
onApplicationEvent:74, BootstrapApplicationListener (org.springframework.cloud.bootstrap)
doInvokeListener:172, SimpleApplicationEventMulticaster (org.springframework.context.event)
invokeListener:165, SimpleApplicationEventMulticaster (org.springframework.context.event)
multicastEvent:139, SimpleApplicationEventMulticaster (org.springframework.context.event)
multicastEvent:127, SimpleApplicationEventMulticaster (org.springframework.context.event)
environmentPrepared:80, EventPublishingRunListener (org.springframework.boot.context.event)
environmentPrepared:53, SpringApplicationRunListeners (org.springframework.boot)
prepareEnvironment:342, SpringApplication (org.springframework.boot)
run:307, SpringApplication (org.springframework.boot)
loadContext:120, SpringBootContextLoader (org.springframework.boot.test.context)
loadContextInternal:99, DefaultCacheAwareContextLoaderDelegate (org.springframework.test.context.cache)
loadContext:124, DefaultCacheAwareContextLoaderDelegate (org.springframework.test.context.cache)
getApplicationContext:123, DefaultTestContext (org.springframework.test.context.support)
setUpRequestContextIfNecessary:190, ServletTestExecutionListener (org.springframework.test.context.web)
prepareTestInstance:132, ServletTestExecutionListener (org.springframework.test.context.web)
prepareTestInstance:244, TestContextManager (org.springframework.test.context)
createTest:227, SpringJUnit4ClassRunner (org.springframework.test.context.junit4)
runReflectiveCall:289, SpringJUnit4ClassRunner$1 (org.springframework.test.context.junit4)
run:12, ReflectiveCallable (org.junit.internal.runners.model)
methodBlock:291, SpringJUnit4ClassRunner (org.springframework.test.context.junit4)
runChild:246, SpringJUnit4ClassRunner (org.springframework.test.context.junit4)
runChild:97, SpringJUnit4ClassRunner (org.springframework.test.context.junit4)
run:331, ParentRunner$4 (org.junit.runners)
schedule:79, ParentRunner$1 (org.junit.runners)
runChildren:329, ParentRunner (org.junit.runners)
access$100:66, ParentRunner (org.junit.runners)
evaluate:293, ParentRunner$2 (org.junit.runners)
evaluate:61, RunBeforeTestClassCallbacks (org.springframework.test.context.junit4.statements)
evaluate:70, RunAfterTestClassCallbacks (org.springframework.test.context.junit4.statements)
evaluate:306, ParentRunner$3 (org.junit.runners)
run:413, ParentRunner (org.junit.runners)
run:190, SpringJUnit4ClassRunner (org.springframework.test.context.junit4)
run:137, JUnitCore (org.junit.runner)
startRunnerWithArgs:69, JUnit4IdeaTestRunner (com.intellij.junit4)
execute:38, IdeaTestRunner$Repeater$1 (com.intellij.rt.junit)
repeat:11, TestsRepeater (com.intellij.rt.execution.junit)
startRunnerWithArgs:35, IdeaTestRunner$Repeater (com.intellij.rt.junit)
prepareStreamsAndStart:235, JUnitStarter (com.intellij.rt.junit)
main:54, JUnitStarter (com.intellij.rt.junit)

java 动态代理

December 21, 2022 · One min read

背景

了解java动态代理

how to debug javac

December 21, 2022 · One min read

背景

javac 是java的编译器,目前对编译原理非常感兴趣,而且对类型擦除和java的类型系统感兴趣.所以需要调试javac

How to do

java9 之后新增了模块module功能.在这之前,javac是单独有个tools.java负载编译的.在java9之后,相关代码在jdk.compiler的module下面

java parser

December 20, 2022 · One min read

背景

了解java的.java文件的词法分析
了解java的编译过程

parser

类型检查

src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Check.java

java的的语法词法分析,生成parse树

src/jdk.compiler/share/classes/com/sun/tools/javac/parser/JavacParser.java

(gdb) p (char *) buf
$3 = 0x7ffff5980170 "/home/dai/javademo/learn_java/generic/GenericMethod.java:8: error: name clash: sayHi(List<Integer>) and sayHi(List<String>) have the same erasure\n"
(gdb) bt
#0  __GI___libc_write (fd=fd@entry=2, buf=buf@entry=0x7ffff5980170, nbytes=nbytes@entry=146) at ../sysdeps/unix/sysv/linux/write.c:25
#1  0x00007ffff5851e28 in handleWrite (fd=2, buf=buf@entry=0x7ffff5980170, len=len@entry=146) at /home/dai/jdk/src/java.base/unix/native/libjava/io_util_md.c:196
#2  0x00007ffff58518ba in writeBytes (env=0x7ffff00295d0, this=0x7ffff5982290, bytes=<optimized out>, off=0, len=146, append=<optimized out>, fid=0xd08e043)
    at /home/dai/jdk/src/java.base/share/native/libjava/io_util.c:189
#3  0x00007ffff584a2ab in Java_java_io_FileOutputStream_writeBytes (env=<optimized out>, this=<optimized out>, bytes=<optimized out>, off=<optimized out>, len=<optimized out>, append=<optimized out>)
    at /home/dai/jdk/src/java.base/share/native/libjava/FileOutputStream.c:70
#4  0x00007fffe100f6cb in ?? ()
#5  0x00007ffff7d41000 in ?? ()
#6  0x0000555555581520 in ?? ()
#7  0x00007ffff00292f0 in ?? ()
#8  0x00007fffb4d44e58 in ?? ()
#9  0x00007fffe100f199 in ?? ()
#10 0x00007ffff5982208 in ?? ()
#11 0x00007fffb41f2960 in ?? ()
#12 0x00007ffff5982290 in ?? ()
#13 0x00007fffb41f3b38 in ?? ()
#14 0x0000000000000000 in ?? ()

背景​

使用​

分配内存​

ByteBuf 写入​

堆栈​

ByteBuf 写入socket​

ByteBuf 到ByteBuffer 转换​

相关阅读​

背景​

路径​

相关阅读​

背景​

相关阅读​

java io​

相关阅读​

背景​

arrays​

变量 variables​

jni 实现​

总结​

相关阅读​

背景​

堆栈​

spring boot 设置配置​

设置属性​

rabbitmq 配置注入​

初始化空难的配置​

相关阅读​

背景​

获取配置的堆栈​

背景​

相关阅读​

背景​

How to do​

背景​

parser​

相关阅读​

背景

使用

分配内存

ByteBuf 写入

堆栈

ByteBuf 写入socket

ByteBuf 到ByteBuffer 转换

相关阅读

背景

路径

相关阅读

背景

相关阅读

java io

相关阅读

背景

arrays

变量 `variables`

jni 实现

总结

相关阅读

背景

堆栈

spring boot 设置配置

设置属性

rabbitmq 配置注入

初始化空难的配置

相关阅读

背景

获取配置的堆栈

背景

相关阅读

背景

How to do

背景

parser

相关阅读