java.lang.Thread.State: WAITING (parking)

public class RunnableImpl implements Runnable {

    Lock lock = new ReentrantLock();

    private int ticket = 10;

    @Override

    public void run() {

        while (true){

            lock.lock();

            if (ticket >0 ){

                try {

                    Thread.sleep(1000);

                    System.out.println("當前的執行緒"+Thread.currentThread().toString()+" "+ticket--);

                } catch (InterruptedException e) {

                    e.printStackTrace();

                }finally {

                    lock.unlock();

                }

            }

        }

    }

}

2020-05-31 11:47:14

Full thread dump Java HotSpot(TM) 64-Bit Server VM (25.91-b15 mixed mode):



"DestroyJavaVM" #14 prio=5 os_prio=0 tid=0x0000000002b62800 nid=0x3fe8 waiting on condition [0x0000000000000000]

   java.lang.Thread.State: RUNNABLE



"Thread-1" #12 prio=5 os_prio=0 tid=0x000000001b198000 nid=0x3ea0 waiting on condition [0x000000001be5e000]

   java.lang.Thread.State: WAITING (parking)

	at sun.misc.Unsafe.park(Native Method)

	- parking to wait for  <0x0000000780963f90> (a java.util.concurrent.locks.ReentrantLock$NonfairSync)

	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)

	at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836)

	at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:870)

	at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1199)

	at java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:209)

	at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:285)

	at com.gao.thread.demo05.RunnableImpl.run(RunnableImpl.java:26)

	at java.lang.Thread.run(Thread.java:745)



"Thread-0" #11 prio=5 os_prio=0 tid=0x000000001b195000 nid=0x3c10 waiting on condition [0x000000001bd5e000]

   java.lang.Thread.State: WAITING (parking)

	at sun.misc.Unsafe.park(Native Method)

	- parking to wait for  <0x0000000780963f90> (a java.util.concurrent.locks.ReentrantLock$NonfairSync)

	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)

	at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836)

	at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:870)

	at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1199)

	at java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:209)

	at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:285)

	at com.gao.thread.demo05.RunnableImpl.run(RunnableImpl.java:26)

	at java.lang.Thread.run(Thread.java:745)



"Service Thread" #10 daemon prio=9 os_prio=0 tid=0x000000001b12e000 nid=0x43c4 runnable [0x0000000000000000]

   java.lang.Thread.State: RUNNABLE



"C1 CompilerThread2" #9 daemon prio=9 os_prio=2 tid=0x000000001b10f800 nid=0x1a58 waiting on condition [0x0000000000000000]

   java.lang.Thread.State: RUNNABLE



"C2 CompilerThread1" #8 daemon prio=9 os_prio=2 tid=0x000000001b0a4000 nid=0x4248 waiting on condition [0x0000000000000000]

   java.lang.Thread.State: RUNNABLE



"C2 CompilerThread0" #7 daemon prio=9 os_prio=2 tid=0x000000001b09c800 nid=0x3c88 waiting on condition [0x0000000000000000]

   java.lang.Thread.State: RUNNABLE



"Monitor Ctrl-Break" #6 daemon prio=5 os_prio=0 tid=0x000000001b0ad000 nid=0x3b48 runnable [0x000000001b75e000]

   java.lang.Thread.State: RUNNABLE

	at java.net.SocketInputStream.socketRead0(Native Method)

	at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)

	at java.net.SocketInputStream.read(SocketInputStream.java:170)

	at java.net.SocketInputStream.read(SocketInputStream.java:141)

	at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:284)

	at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:326)

	at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:178)

	- locked <0x0000000780a2b778> (a java.io.InputStreamReader)

	at java.io.InputStreamReader.read(InputStreamReader.java:184)

	at java.io.BufferedReader.fill(BufferedReader.java:161)

	at java.io.BufferedReader.readLine(BufferedReader.java:324)

	- locked <0x0000000780a2b778> (a java.io.InputStreamReader)

	at java.io.BufferedReader.readLine(BufferedReader.java:389)

	at com.intellij.rt.execution.application.AppMainV2$1.run(AppMainV2.java:64)



"Attach Listener" #5 daemon prio=5 os_prio=2 tid=0x0000000019d59000 nid=0x4214 waiting on condition [0x0000000000000000]

   java.lang.Thread.State: RUNNABLE



"Signal Dispatcher" #4 daemon prio=9 os_prio=2 tid=0x0000000019d0e800 nid=0x39b0 runnable [0x0000000000000000]

   java.lang.Thread.State: RUNNABLE



"Finalizer" #3 daemon prio=8 os_prio=1 tid=0x0000000002c5b000 nid=0x3e38 in Object.wait() [0x000000001b05f000]

   java.lang.Thread.State: WAITING (on object monitor)

	at java.lang.Object.wait(Native Method)

	- waiting on <0x0000000780808ee0> (a java.lang.ref.ReferenceQueue$Lock)

	at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:143)

	- locked <0x0000000780808ee0> (a java.lang.ref.ReferenceQueue$Lock)

	at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:164)

	at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:209)



"Reference Handler" #2 daemon prio=10 os_prio=2 tid=0x0000000019cc9000 nid=0x2a04 in Object.wait() [0x000000001af5f000]

   java.lang.Thread.State: WAITING (on object monitor)

	at java.lang.Object.wait(Native Method)

	- waiting on <0x0000000780806b50> (a java.lang.ref.Reference$Lock)

	at java.lang.Object.wait(Object.java:502)

	at java.lang.ref.Reference.tryHandlePending(Reference.java:191)

	- locked <0x0000000780806b50> (a java.lang.ref.Reference$Lock)

	at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:153)



"VM Thread" os_prio=2 tid=0x0000000019cc8000 nid=0x3998 runnable 



"GC task thread#0 (ParallelGC)" os_prio=0 tid=0x0000000002b77800 nid=0x34e0 runnable 



"GC task thread#1 (ParallelGC)" os_prio=0 tid=0x0000000002b79000 nid=0x38f4 runnable 



"GC task thread#2 (ParallelGC)" os_prio=0 tid=0x0000000002b7a800 nid=0x20a8 runnable 



"GC task thread#3 (ParallelGC)" os_prio=0 tid=0x0000000002b7c800 nid=0x214c runnable 



"VM Periodic Task Thread" os_prio=2 tid=0x000000001b193000 nid=0x413c waiting on condition 



JNI global references: 19

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