Ayuda para comprender la salida jstack

Tengo una aplicación Java/Swing de escritorio que se implementa a través de Java Webstart (los clientes usan Java 6u20 en XP). He recibido informes intermitentes de los usuarios de la aplicación pendiente. Me las arreglé para iniciar sesión en un sistema así durante un hang encontrado que la interfaz de usuario no se estaba dibujando (como si EDT estuviera bloqueado).Ayuda para comprender la salida jstack

Utilicé jstack para enumerar los hilos; No veo ninguna mención de bloqueos en la salida y como soy bastante nuevo en jstack, no estoy seguro de qué más debería estar buscando.

Tuve que editar el trazado de la pila para permitir que quepa dentro de los límites de stackoverflow, con suerte no se ha omitido nada significativo.

Gracias,
Phil

Full thread dump Java HotSpot(TM) Client VM (16.3-b01 mixed mode, sharing): 

"AWT-EventQueue-0" prio=6 tid=0x03e3f000 nid=0xe44 in Object.wait() [0x0516f000] 
    java.lang.Thread.State: WAITING (on object monitor) 
    at java.lang.Object.wait(Native Method) 
    at java.lang.Object.wait(Object.java:485) 
    at java.awt.EventQueue.getNextEvent(Unknown Source) 
    - locked <0x1d4b91d8> (a java.awt.EventQueue) 
    at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) 
    <SNIP> 

    Locked ownable synchronizers: 
    - None 

"ServerThread" prio=6 tid=0x058f7c00 nid=0xa08 waiting for monitor entry [0x055be000] 
    java.lang.Thread.State: BLOCKED (on object monitor) 
    at com.sun.deploy.security.CPCallbackHandler$ParentCallback.check(Unknown Source) 
    - waiting to lock <0x1d485f80> (a com.sun.deploy.security.CPCallbackHandler$ParentCallback) 
    at com.sun.deploy.security.CPCallbackHandler$ParentCallback.access$1400(Unknown Source) 
    at com.sun.deploy.security.CPCallbackHandler$ChildElement.checkResource(Unknown Source) 
    at com.sun.deploy.security.DeployURLClassPath$JarLoader.checkResource(Unknown Source) 
    at com.sun.deploy.security.DeployURLClassPath$JarLoader.getResource(Unknown Source) 
    at com.sun.deploy.security.DeployURLClassPath$JarLoader.findResource(Unknown Source) 
    at com.sun.deploy.security.DeployURLClassPath.findResource(Unknown Source) 
    at java.net.URLClassLoader$2.run(Unknown Source) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at java.net.URLClassLoader.findResource(Unknown Source) 
    at com.sun.jnlp.JNLPClassLoader.findResource(Unknown Source) 
    at java.lang.ClassLoader.getResource(Unknown Source) 
    at com.sun.jnlp.JNLPClassLoader.access$001(Unknown Source) 
    at com.sun.jnlp.JNLPClassLoader$1.run(Unknown Source) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at com.sun.jnlp.JNLPClassLoader.getResource(Unknown Source) 
    at java.lang.ClassLoader.getResourceAsStream(Unknown Source) 
    at java.util.ResourceBundle$Control$1.run(Unknown Source) 
    at java.util.ResourceBundle$Control$1.run(Unknown Source) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at java.util.ResourceBundle$Control.newBundle(Unknown Source) 
    at java.util.ResourceBundle.loadBundle(Unknown Source) 
    at java.util.ResourceBundle.findBundle(Unknown Source) 
    at java.util.ResourceBundle.findBundle(Unknown Source) 
    at java.util.ResourceBundle.getBundleImpl(Unknown Source) 
    at java.util.ResourceBundle.getBundle(Unknown Source) 
    at org.apache.derby.iapi.services.i18n.MessageService.getBundleWithEnDefault(Unknown Source) 
    at org.apache.derby.iapi.services.i18n.MessageService.getBundleForLocale(Unknown Source) 
    at org.apache.derby.impl.services.monitor.BaseMonitor.getBundle(Unknown Source) 
    at org.apache.derby.iapi.services.i18n.MessageService.getBundle(Unknown Source) 
    at org.apache.derby.iapi.services.i18n.MessageService.getCompleteMessage(Unknown Source) 
    at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Unknown Source) 
    at org.apache.derby.impl.jdbc.Util.javaException(Unknown Source) 
    at org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(Unknown Source) 
    at org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(Unknown Source) 
    at org.apache.derby.impl.jdbc.EmbedConnection.handleException(Unknown Source) 
    at org.apache.derby.impl.jdbc.ConnectionChild.handleException(Unknown Source) 
    at org.apache.derby.impl.jdbc.EmbedPreparedStatement.<init>(Unknown Source) 
    at org.apache.derby.impl.jdbc.EmbedPreparedStatement20.<init>(Unknown Source) 
    at org.apache.derby.impl.jdbc.EmbedPreparedStatement30.<init>(Unknown Source) 
    at org.apache.derby.impl.jdbc.EmbedPreparedStatement40.<init>(Unknown Source) 
    at org.apache.derby.jdbc.Driver40.newEmbedPreparedStatement(Unknown Source) 
    at org.apache.derby.impl.jdbc.EmbedConnection.prepareStatement(Unknown Source) 
    - locked <0x1c233300> (a org.apache.derby.impl.jdbc.EmbedConnection40) 
    at org.apache.derby.impl.jdbc.EmbedConnection.prepareStatement(Unknown Source) 
    <SNIP> 

    Locked ownable synchronizers: 
    - None 

"ServerThread" prio=6 tid=0x058e7800 nid=0x2c0 waiting for monitor entry [0x082de000] 
    java.lang.Thread.State: BLOCKED (on object monitor) 
    at com.sun.deploy.security.CPCallbackHandler$ParentCallback.check(Unknown Source) 
    - waiting to lock <0x1d485f80> (a com.sun.deploy.security.CPCallbackHandler$ParentCallback) 
    at com.sun.deploy.security.CPCallbackHandler$ParentCallback.access$1400(Unknown Source) 
    <SNIP> 
    at org.apache.derby.jdbc.Driver40.newEmbedPreparedStatement(Unknown Source) 
    at org.apache.derby.impl.jdbc.EmbedConnection.prepareStatement(Unknown Source) 
    - locked <0x1c1bf748> (a org.apache.derby.impl.jdbc.EmbedConnection40) 
    at org.apache.derby.impl.jdbc.EmbedConnection.prepareStatement(Unknown Source) 
    at com.foo.myapp.dataaccess.sql.PriceSql.<init>(PriceSql.java:120) 
    at com.foo.myapp.dataaccess.sql.SqlServer.<init>(SqlServer.java:124) 
    at com.foo.myapp.dataaccess.socket.ServerThread.run(ServerThread.java:154) 

    Locked ownable synchronizers: 
    - None 

"ServerThread" prio=6 tid=0x04337000 nid=0xff4 waiting for monitor entry [0x0828e000] 
    java.lang.Thread.State: BLOCKED (on object monitor) 
    at com.sun.deploy.security.CPCallbackHandler$ParentCallback.check(Unknown Source) 
    - waiting to lock <0x1d485f80> (a com.sun.deploy.security.CPCallbackHandler$ParentCallback) 
    at com.sun.deploy.security.CPCallbackHandler$ParentCallback.access$1400(Unknown Source) 
    <SNIP> 
    at org.apache.derby.jdbc.Driver40.newEmbedPreparedStatement(Unknown Source) 
    at org.apache.derby.impl.jdbc.EmbedConnection.prepareStatement(Unknown Source) 
    - locked <0x1c176a80> (a org.apache.derby.impl.jdbc.EmbedConnection40) 
    at org.apache.derby.impl.jdbc.EmbedConnection.prepareStatement(Unknown Source) 
    at com.foo.myapp.dataaccess.sql.PriceSql.<init>(PriceSql.java:201) 
    at com.foo.myapp.dataaccess.sql.SqlServer.<init>(SqlServer.java:124) 
    at com.foo.myapp.dataaccess.socket.ServerThread.run(ServerThread.java:154) 

    Locked ownable synchronizers: 
    - None 

"ServerThread" prio=6 tid=0x05913400 nid=0xd5c in Object.wait() [0x0823e000] 
    java.lang.Thread.State: WAITING (on object monitor) 
    at java.lang.Object.wait(Native Method) 
    at java.lang.Object.wait(Object.java:485) 
    at com.sun.javaws.ui.JavawsSysRun.delegate(Unknown Source) 
    - locked <0x1d430890> (a java.lang.Object) 
    at com.sun.deploy.util.DeploySysRun.execute(Unknown Source) 
    at com.sun.deploy.util.DeploySysRun$1.run(Unknown Source) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at com.sun.deploy.util.DeploySysRun.executePrivileged(Unknown Source) 
    at com.sun.deploy.ui.UIFactory.showMixedCodeDialog(Unknown Source) 
    at com.sun.deploy.security.CPCallbackHandler.showMixedTrustDialog(Unknown Source) 
    at com.sun.deploy.security.CPCallbackHandler.access$1000(Unknown Source) 
    <SNIP> 
    at com.foo.myapp.dataaccess.sql.SqlServer.<init>(SqlServer.java:124) 
    at com.foo.myapp.dataaccess.socket.ServerThread.run(ServerThread.java:154) 

    Locked ownable synchronizers: 
    - None 

"ServerThread" prio=6 tid=0x043bd400 nid=0xb44 waiting for monitor entry [0x081ee000] 
    java.lang.Thread.State: BLOCKED (on object monitor) 
    at com.sun.deploy.security.CPCallbackHandler$ParentCallback.check(Unknown Source) 
    - waiting to lock <0x1d485f80> (a com.sun.deploy.security.CPCallbackHandler$ParentCallback) 
    at com.sun.deploy.security.CPCallbackHandler$ParentCallback.access$1400(Unknown Source) 
    <SNIP> 
    at org.apache.derby.impl.jdbc.EmbedConnection.prepareStatement(Unknown Source) 
    - locked <0x1c01d1f0> (a org.apache.derby.impl.jdbc.EmbedConnection40) 
    at org.apache.derby.impl.jdbc.EmbedConnection.prepareStatement(Unknown Source) 
    at com.foo.myapp.dataaccess.sql.SkuSql.<init>(SkuSql.java:539) 
    at com.foo.myapp.dataaccess.sql.TransactionEntrySql.<init>(TransactionEntrySql.java:143) 
    at com.foo.myapp.dataaccess.sql.SqlServer.<init>(SqlServer.java:137) 
    at com.foo.myapp.dataaccess.socket.ServerThread.run(ServerThread.java:154) 

    Locked ownable synchronizers: 
    - None 

"ServerThread" prio=6 tid=0x0438a800 nid=0xccc waiting for monitor entry [0x0819e000] 
    java.lang.Thread.State: BLOCKED (on object monitor) 
    at com.sun.deploy.security.CPCallbackHandler$ParentCallback.check(Unknown Source) 
    - waiting to lock <0x1d485f80> (a com.sun.deploy.security.CPCallbackHandler$ParentCallback) 
    at com.sun.deploy.security.CPCallbackHandler$ParentCallback.access$1400(Unknown Source) 
    <SNIP> 
    at org.apache.derby.impl.jdbc.EmbedConnection.prepareStatement(Unknown Source) 
    - locked <0x1b043cb0> (a org.apache.derby.impl.jdbc.EmbedConnection40) 
    at org.apache.derby.impl.jdbc.EmbedConnection.prepareStatement(Unknown Source) 
    at com.foo.myapp.dataaccess.sql.HierarchyGroupSql.<init>(HierarchyGroupSql.java:53) 
    at com.foo.myapp.dataaccess.sql.SqlServer.<init>(SqlServer.java:144) 
    at com.foo.myapp.dataaccess.socket.ServerThread.run(ServerThread.java:154) 

    Locked ownable synchronizers: 
    - None 

"ServerThread" prio=6 tid=0x04324c00 nid=0x214 waiting for monitor entry [0x0814e000] 
    java.lang.Thread.State: BLOCKED (on object monitor) 
    at com.sun.deploy.security.CPCallbackHandler$ParentCallback.check(Unknown Source) 
    - waiting to lock <0x1d485f80> (a com.sun.deploy.security.CPCallbackHandler$ParentCallback) 
    at com.sun.deploy.security.CPCallbackHandler$ParentCallback.access$1400(Unknown Source) 
    <SNIP> 
    at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(Unknown Source) 
    - locked <0x1bc4c8b8> (a org.apache.derby.impl.jdbc.EmbedConnection40) 
    at org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeStatement(Unknown Source) 
    at org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeQuery(Unknown Source) 
    at com.foo.myapp.dataaccess.sql.SkuSql.updateProductDescriptors(SkuSql.java:1050) 
    at com.foo.myapp.dataaccess.sql.SkuSql.run(SkuSql.java:918) 
    at com.foo.myapp.dataaccess.sql.SqlServerBase.exec(SqlServerBase.java:68) 
    at com.foo.myapp.dataaccess.socket.ServerThread.processTransaction(ServerThread.java:215) 
    at com.foo.myapp.dataaccess.socket.ServerThread.run(ServerThread.java:161) 

    Locked ownable synchronizers: 
    - None 

"Timer-1232" prio=6 tid=0x042e5400 nid=0xcbc in Object.wait() [0x080ff000] 
    java.lang.Thread.State: WAITING (on object monitor) 
    at java.lang.Object.wait(Native Method) 
    at java.lang.Object.wait(Object.java:485) 
    at java.util.TimerThread.mainLoop(Unknown Source) 
    - locked <0x1b849c78> (a java.util.TaskQueue) 
    at java.util.TimerThread.run(Unknown Source) 

    Locked ownable synchronizers: 
    - None 

"Timer-1225" prio=6 tid=0x04227800 nid=0xcc in Object.wait() [0x0800f000] 
    java.lang.Thread.State: WAITING (on object monitor) 
    at java.lang.Object.wait(Native Method) 
    at java.lang.Object.wait(Object.java:485) 
    at java.util.TimerThread.mainLoop(Unknown Source) 
    - locked <0x1b5147f8> (a java.util.TaskQueue) 
    at java.util.TimerThread.run(Unknown Source) 

    Locked ownable synchronizers: 
    - None 

"Timer-1200" prio=6 tid=0x041bec00 nid=0x9cc in Object.wait() [0x080af000] 
    java.lang.Thread.State: WAITING (on object monitor) 
    at java.lang.Object.wait(Native Method) 
    at java.lang.Object.wait(Object.java:485) 
    at java.util.TimerThread.mainLoop(Unknown Source) 
    - locked <0x1a977a20> (a java.util.TaskQueue) 
    at java.util.TimerThread.run(Unknown Source) 

    Locked ownable synchronizers: 
    - None 


[SNIPPED about 70 Timer tasks] 


"AWT-EventQueue-1" prio=6 tid=0x0420c800 nid=0xdb4 in Object.wait() [0x0729f000] 
    java.lang.Thread.State: WAITING (on object monitor) 
    at java.lang.Object.wait(Native Method) 
    at java.lang.Object.wait(Object.java:485) 
    at java.awt.EventQueue.getNextEvent(Unknown Source) 
    - locked <0x1d492480> (a java.awt.EventQueue) 
    at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) 
    at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) 
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) 
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source) 
    at java.awt.SequencedEvent.dispatch(Unknown Source) 
    at java.awt.EventQueue.dispatchEvent(Unknown Source) 
    at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) 
    at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) 
    at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) 
    at java.awt.Dialog$1.run(Unknown Source) 
    at java.awt.Dialog$3.run(Unknown Source) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at java.awt.Dialog.show(Unknown Source) 
    at java.awt.Component.show(Unknown Source) 
    at java.awt.Component.setVisible(Unknown Source) 
    at java.awt.Window.setVisible(Unknown Source) 
    at java.awt.Dialog.setVisible(Unknown Source) 
    at com.sun.deploy.ui.DialogTemplate$12.run(Unknown Source) 
    at java.awt.event.InvocationEvent.dispatch(Unknown Source) 
    at java.awt.EventQueue.dispatchEvent(Unknown Source) 
    at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) 
    at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) 
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) 
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source) 
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source) 
    at java.awt.EventDispatchThread.run(Unknown Source) 

    Locked ownable synchronizers: 
    - None 

"SwingWorker-pool-1-thread-1" daemon prio=6 tid=0x03d23400 nid=0xf18 waiting on condition [0x031bf000] 
    java.lang.Thread.State: WAITING (parking) 
    at sun.misc.Unsafe.park(Native Method) 
    - parking to wait for <0x22294b78> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject) 
    at java.util.concurrent.locks.LockSupport.park(Unknown Source) 
    at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(Unknown Source) 
    at java.util.concurrent.LinkedBlockingQueue.take(Unknown Source) 
    at java.util.concurrent.ThreadPoolExecutor.getTask(Unknown Source) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) 
    at java.lang.Thread.run(Unknown Source) 

    Locked ownable synchronizers: 
    - None 

"Thread-24" prio=6 tid=0x03f1cc00 nid=0xe20 runnable [0x0565f000] 
    java.lang.Thread.State: RUNNABLE 
    at java.net.PlainSocketImpl.socketAccept(Native Method) 
    at java.net.PlainSocketImpl.accept(Unknown Source) 
    - locked <0x1fc03898> (a java.net.SocksSocketImpl) 
    at java.net.ServerSocket.implAccept(Unknown Source) 
    at java.net.ServerSocket.accept(Unknown Source) 
    at com.foo.myapp.ApplicationRunner$6.run(ApplicationRunner.java:962) 
    at java.lang.Thread.run(Unknown Source) 

    Locked ownable synchronizers: 
    - None 

"Thread-20" prio=6 tid=0x03f2c800 nid=0xba8 waiting on condition [0x0551f000] 
    java.lang.Thread.State: TIMED_WAITING (sleeping) 
    at java.lang.Thread.sleep(Native Method) 
    at com.foo.myapp.UserActivityMonitor.run(UserActivityMonitor.java:42) 

    Locked ownable synchronizers: 
    - None 


"TimerQueue" daemon prio=6 tid=0x02d34400 nid=0x9d8 in Object.wait() [0x04c8f000] 
    java.lang.Thread.State: TIMED_WAITING (on object monitor) 
    at java.lang.Object.wait(Native Method) 
    at javax.swing.TimerQueue.run(Unknown Source) 
    - locked <0x1ea5c8d0> (a javax.swing.TimerQueue) 
    at java.lang.Thread.run(Unknown Source) 

    Locked ownable synchronizers: 
    - None 

"derby.rawStoreDaemon" daemon prio=6 tid=0x03ec8000 nid=0x584 in Object.wait() [0x0525f000] 
    java.lang.Thread.State: TIMED_WAITING (on object monitor) 
    at java.lang.Object.wait(Native Method) 
    at org.apache.derby.impl.services.daemon.BasicDaemon.rest(Unknown Source) 
    - locked <0x1da8f898> (a org.apache.derby.impl.services.daemon.BasicDaemon) 
    at org.apache.derby.impl.services.daemon.BasicDaemon.run(Unknown Source) 
    at java.lang.Thread.run(Unknown Source) 

    Locked ownable synchronizers: 
    - None 

"Timer-1" daemon prio=6 tid=0x03ec3000 nid=0x2cc in Object.wait() [0x0520f000] 
    java.lang.Thread.State: WAITING (on object monitor) 
    at java.lang.Object.wait(Native Method) 
    - waiting on <0x1d816590> (a java.util.TaskQueue) 
    at java.lang.Object.wait(Object.java:485) 
    at java.util.TimerThread.mainLoop(Unknown Source) 
    - locked <0x1d816590> (a java.util.TaskQueue) 
    at java.util.TimerThread.run(Unknown Source) 

    Locked ownable synchronizers: 
    - None 

"derby.antiGC" daemon prio=2 tid=0x03e84000 nid=0xf70 in Object.wait() [0x051bf000] 
    java.lang.Thread.State: WAITING (on object monitor) 
    at java.lang.Object.wait(Native Method) 
    - waiting on <0x1d804090> (a org.apache.derby.impl.services.monitor.AntiGC) 
    at java.lang.Object.wait(Object.java:485) 
    at org.apache.derby.impl.services.monitor.AntiGC.run(Unknown Source) 
    - locked <0x1d804090> (a org.apache.derby.impl.services.monitor.AntiGC) 
    at java.lang.Thread.run(Unknown Source) 

    Locked ownable synchronizers: 
    - None 

"Timer-0" prio=6 tid=0x03e71800 nid=0x7c in Object.wait() [0x0511f000] 
    java.lang.Thread.State: WAITING (on object monitor) 
    at java.lang.Object.wait(Native Method) 
    - waiting on <0x1d7e7b08> (a java.util.TaskQueue) 
    at java.lang.Object.wait(Object.java:485) 
    at java.util.TimerThread.mainLoop(Unknown Source) 
    - locked <0x1d7e7b08> (a java.util.TaskQueue) 
    at java.util.TimerThread.run(Unknown Source) 

    Locked ownable synchronizers: 
    - None 

"AWT-Shutdown" prio=6 tid=0x03f58000 nid=0xad0 in Object.wait() [0x04bdf000] 
    java.lang.Thread.State: WAITING (on object monitor) 
    at java.lang.Object.wait(Native Method) 
    at java.lang.Object.wait(Object.java:485) 
    at sun.awt.AWTAutoShutdown.run(Unknown Source) 
    - locked <0x1d480cc8> (a java.lang.Object) 
    at java.lang.Thread.run(Unknown Source) 

    Locked ownable synchronizers: 
    - None 

"NativeSwing Receiver - Swing" daemon prio=6 tid=0x03ed7400 nid=0x80c runnable [0x03dff000] 
    java.lang.Thread.State: RUNNABLE 
    at java.net.SocketInputStream.socketRead0(Native Method) 
    at java.net.SocketInputStream.read(Unknown Source) 
    at java.io.BufferedInputStream.fill(Unknown Source) 
    at java.io.BufferedInputStream.read(Unknown Source) 
    - locked <0x1d840e50> (a java.io.BufferedInputStream) 
    at java.io.ObjectInputStream$PeekInputStream.peek(Unknown Source) 
    at java.io.ObjectInputStream$BlockDataInputStream.peek(Unknown Source) 
    at java.io.ObjectInputStream$BlockDataInputStream.peekByte(Unknown Source) 
    at java.io.ObjectInputStream.readObject0(Unknown Source) 
    at java.io.ObjectInputStream.readUnshared(Unknown Source) 
    at chrriis.dj.nativeswing.swtimpl.OutProcessMessagingInterface.readMessageFromChannel(OutProcessMessagingInterface.java:113) 
    at chrriis.dj.nativeswing.swtimpl.MessagingInterface$2.run(MessagingInterface.java:329) 

    Locked ownable synchronizers: 
    - None 

"NativeSwing Stream Connector" daemon prio=6 tid=0x03ca6800 nid=0xf30 runnable [0x03daf000] 
    java.lang.Thread.State: RUNNABLE 
    at java.io.FileInputStream.readBytes(Native Method) 
    at java.io.FileInputStream.read(Unknown Source) 
    at java.io.BufferedInputStream.read1(Unknown Source) 
    at java.io.BufferedInputStream.read(Unknown Source) 
    - locked <0x1d83c338> (a java.io.BufferedInputStream) 
    at java.io.BufferedInputStream.fill(Unknown Source) 
    at java.io.BufferedInputStream.read1(Unknown Source) 
    at java.io.BufferedInputStream.read(Unknown Source) 
    - locked <0x1d83c358> (a java.io.BufferedInputStream) 
    at java.io.FilterInputStream.read(Unknown Source) 
    at chrriis.dj.nativeswing.swtimpl.NativeInterface$OutProcess$1.run(NativeInterface.java:696) 

    Locked ownable synchronizers: 
    - None 

"NativeSwing Stream Connector" daemon prio=6 tid=0x03ca6400 nid=0xdf4 runnable [0x0382f000] 
    java.lang.Thread.State: RUNNABLE 
    at java.io.FileInputStream.readBytes(Native Method) 
    at java.io.FileInputStream.read(Unknown Source) 
    at java.io.BufferedInputStream.fill(Unknown Source) 
    at java.io.BufferedInputStream.read1(Unknown Source) 
    at java.io.BufferedInputStream.read(Unknown Source) 
    - locked <0x1d83e840> (a java.io.BufferedInputStream) 
    at java.io.FilterInputStream.read(Unknown Source) 
    at chrriis.dj.nativeswing.swtimpl.NativeInterface$OutProcess$1.run(NativeInterface.java:696) 

    Locked ownable synchronizers: 
    - None 

"WebServer" daemon prio=6 tid=0x03caa800 nid=0x464 runnable [0x037cf000] 
    java.lang.Thread.State: RUNNABLE 
    at java.net.PlainSocketImpl.socketAccept(Native Method) 
    at java.net.PlainSocketImpl.accept(Unknown Source) 
    - locked <0x1d83ed08> (a java.net.SocksSocketImpl) 
    at java.net.ServerSocket.implAccept(Unknown Source) 
    at java.net.ServerSocket.accept(Unknown Source) 
    at chrriis.common.WebServer$1.run(WebServer.java:719) 

    Locked ownable synchronizers: 
    - None 

"TimerQueue" daemon prio=6 tid=0x036c3800 nid=0x304 in Object.wait() [0x038ef000] 
    java.lang.Thread.State: WAITING (on object monitor) 
    at java.lang.Object.wait(Native Method) 
    - waiting on <0x1d430658> (a javax.swing.TimerQueue) 
    at javax.swing.TimerQueue.run(Unknown Source) 
    - locked <0x1d430658> (a javax.swing.TimerQueue) 
    at java.lang.Thread.run(Unknown Source) 

    Locked ownable synchronizers: 
    - None 

"CacheCleanUpThread" daemon prio=6 tid=0x02dd3000 nid=0xa0 in Object.wait() [0x034af000] 
    java.lang.Thread.State: WAITING (on object monitor) 
    at java.lang.Object.wait(Native Method) 
    - waiting on <0x1d430698> (a com.sun.deploy.cache.CleanupThread) 
    at java.lang.Object.wait(Object.java:485) 
    at com.sun.deploy.cache.CleanupThread.run(Unknown Source) 
    - locked <0x1d430698> (a com.sun.deploy.cache.CleanupThread) 

    Locked ownable synchronizers: 
    - None 

"CacheMemoryCleanUpThread" daemon prio=6 tid=0x02dd1800 nid=0x14c in Object.wait() [0x0345f000] 
    java.lang.Thread.State: WAITING (on object monitor) 
    at java.lang.Object.wait(Native Method) 
    at java.lang.ref.ReferenceQueue.remove(Unknown Source) 
    - locked <0x1d430790> (a java.lang.ref.ReferenceQueue$Lock) 
    at java.lang.ref.ReferenceQueue.remove(Unknown Source) 
    at com.sun.deploy.cache.MemoryCache$LoadedResourceCleanupThread.run(Unknown Source) 

    Locked ownable synchronizers: 
    - None 

"DestroyJavaVM" prio=6 tid=0x003a8800 nid=0xc00 waiting on condition [0x00000000] 
    java.lang.Thread.State: RUNNABLE 

    Locked ownable synchronizers: 
    - None 

"Javaws Secure Thread" daemon prio=6 tid=0x02dca400 nid=0x750 in Object.wait() [0x033bf000] 
    java.lang.Thread.State: WAITING (on object monitor) 
    at java.lang.Object.wait(Native Method) 
    at java.lang.Object.wait(Object.java:485) 
    at java.awt.EventQueue.invokeAndWait(Unknown Source) 
    - locked <0x32961e48> (a java.awt.EventQueue$1AWTInvocationLock) 
    at javax.swing.SwingUtilities.invokeAndWait(Unknown Source) 
    at com.sun.deploy.ui.DialogTemplate.setVisible(Unknown Source) 
    at com.sun.deploy.ui.UIFactory$8.execute(Unknown Source) 
    at com.sun.javaws.ui.JavawsSysRun$SecureThread.doWork(Unknown Source) 
    at com.sun.javaws.ui.JavawsSysRun$SecureThread.run(Unknown Source) 
    - locked <0x1d430890> (a java.lang.Object) 

    Locked ownable synchronizers: 
    - None 

"AWT-Windows" daemon prio=6 tid=0x02dc8c00 nid=0xa28 runnable [0x00a0f000] 
    java.lang.Thread.State: RUNNABLE 
    at sun.awt.windows.WToolkit.eventLoop(Native Method) 
    at sun.awt.windows.WToolkit.run(Unknown Source) 

    Locked ownable synchronizers: 
    - None 

"Java2D Disposer" daemon prio=10 tid=0x02dc6800 nid=0xad4 in Object.wait() [0x032cf000] 
    java.lang.Thread.State: WAITING (on object monitor) 
    at java.lang.Object.wait(Native Method) 
    at java.lang.ref.ReferenceQueue.remove(Unknown Source) 
    - locked <0x1d430968> (a java.lang.ref.ReferenceQueue$Lock) 
    at java.lang.ref.ReferenceQueue.remove(Unknown Source) 
    at sun.java2d.Disposer.run(Unknown Source) 
    at java.lang.Thread.run(Unknown Source) 

    Locked ownable synchronizers: 
    - None 

"traceMsgQueueThread" daemon prio=6 tid=0x02d3ec00 nid=0xf74 in Object.wait() [0x0322f000] 
    java.lang.Thread.State: WAITING (on object monitor) 
    at java.lang.Object.wait(Native Method) 
    at java.lang.Object.wait(Object.java:485) 
    at com.sun.deploy.util.Trace$TraceMsgQueueChecker.run(Unknown Source) 
    - locked <0x1d4309f8> (a java.util.ArrayList) 
    at java.lang.Thread.run(Unknown Source) 

    Locked ownable synchronizers: 
    - None 

"Low Memory Detector" daemon prio=6 tid=0x02d0f400 nid=0x6dc runnable [0x00000000] 
    java.lang.Thread.State: RUNNABLE 

    Locked ownable synchronizers: 
    - None 

"CompilerThread0" daemon prio=10 tid=0x02d09800 nid=0x484 waiting on condition [0x00000000] 
    java.lang.Thread.State: RUNNABLE 

    Locked ownable synchronizers: 
    - None 

"Attach Listener" daemon prio=10 tid=0x02d07c00 nid=0xf60 waiting on condition [0x00000000] 
    java.lang.Thread.State: RUNNABLE 

    Locked ownable synchronizers: 
    - None 

"Signal Dispatcher" daemon prio=10 tid=0x02d06800 nid=0xdf0 runnable [0x00000000] 
    java.lang.Thread.State: RUNNABLE 

    Locked ownable synchronizers: 
    - None 

"Finalizer" daemon prio=8 tid=0x02cfec00 nid=0x290 in Object.wait() [0x02ecf000] 
    java.lang.Thread.State: WAITING (on object monitor) 
    at java.lang.Object.wait(Native Method) 
    at java.lang.ref.ReferenceQueue.remove(Unknown Source) 
    - locked <0x1d430c20> (a java.lang.ref.ReferenceQueue$Lock) 
    at java.lang.ref.ReferenceQueue.remove(Unknown Source) 
    at java.lang.ref.Finalizer$FinalizerThread.run(Unknown Source) 

    Locked ownable synchronizers: 
    - None 

"Reference Handler" daemon prio=10 tid=0x02cfd400 nid=0x3a4 in Object.wait() [0x02e7f000] 
    java.lang.Thread.State: WAITING (on object monitor) 
    at java.lang.Object.wait(Native Method) 
    at java.lang.Object.wait(Object.java:485) 
    at java.lang.ref.Reference$ReferenceHandler.run(Unknown Source) 
    - locked <0x1d4304a8> (a java.lang.ref.Reference$Lock) 

    Locked ownable synchronizers: 
    - None 

"VM Thread" prio=10 tid=0x02cfc000 nid=0xc30 runnable 

"VM Periodic Task Thread" prio=10 tid=0x02d1a000 nid=0x840 waiting on condition 

JNI global references: 2314

Fuente

2010-08-26 PhilDin

Es probable que haya topado con fallo 6960427, el cual fue reportado en contra 1.6.0_20 (tema bloqueo de la muerte).

¿Estás seguro de que el seguimiento de pila publicado está completo? Tienes varios hilos esperando para bloquear 0x1d485f80, pero no hay un hilo con un bloqueo real en ese monitor.

Fuente

2010-08-26 15:22:06 jarnbjo

Parece que hay un bloqueo diferente que está causando el problema, pero relacionado. –

Hola, me disculpo por la demora en responder, solo tengo que leer las respuestas ahora. Con respecto al bloqueo en 0x1d485f80, corté esto bien, está retenido por el hilo 0x05913400. Parece lo siguiente: \t - bloqueado <0x1d485f80> (a com.sun.deploy.security.CPCallbackHandler $ ParentCallback) – PhilDin

[Por favor, ignore el comentario anterior, aquí está el deseado] Hola, me disculpo por el retraso en responder, acabo de recibir para leer las respuestas ahora Con respecto al bloqueo en 0x1d485f80, corté esto bien, está retenido por el hilo 0x05913400. Parece lo siguiente: \t - locked <0x1d485f80> (a com.sun.deploy.security.CPCallbackHandler $ ParentCallback) ¿Tengo razón al interpretar que esto significa que el tipo de objeto que se está bloqueando es un ParentCallback? Tiene un aspecto similar al error 6960427, pero me doy cuenta de que en el informe de errores aparece un punto muerto al final, mi salida jstack no identifica ninguno. – PhilDin

Hay una gran cantidad de hilo reclamando

- waiting to lock <0x1d485f80> (a com.sun.deploy.security.CPCallbackHandler$ParentCallback)

Es que llevó a cabo en algún lugar de la salida cortada con tijeras?

Parece que está intencionalmente mezclando código de confianza y no de confianza ("código mixto"), que es una cosa mala. A partir de 6u19, se muestra un cuadro de diálogo de advertencia (en realidad, el intento debería bloquearse automáticamente, pero parece que hay muchos códigos aprovechando el error). Es este diálogo de advertencia que parece estar causando el problema.

Para solucionarlo, no mezcle el código de confianza y el que no es de confianza. Es una buena idea agregar "Trusted-Only: true" al manifiesto de cada jar.

Fuente

2010-08-26 15:31:23

Hola Tom, he tenido problemas con las advertencias de código de confianza/no de confianza, pero esto no es intencional. Firmé todas las jarras (la mía y la tercera parte) con un certificado autofirmado, así que no esperaba que esto fuera un problema. ¿Puedo preguntar cómo se puede decir esto desde la salida de la pila (¿es la línea "16.3-b01 modo mixto, compartir" en la parte superior?) En segundo lugar, ¿cómo se puede saber por la salida que el diálogo de advertencia es el problema? Gracias. – PhilDin

Los rastreos de pila incluyen los gustos de 'showMixedTrustDialog' y otros subprocesos parecen estar bloqueados en el código de implementación mientras se cargan las clases. "16.3-b01 modo mixto, compartir" se refiere a la versión de HotSpot (ahora desacoplada de la versión de JRE), el hecho de que está utilizando tanto el compilador de códigos de bytes como el intérprete, y el uso compartido es "Intercambio de datos de clase", que es el uso de las 'clases.archivo jsa' que proporciona un rendimiento de inicio más rápido. Como digo, si agrega 'Trusted-Only: true' a sus manifiestos, entonces esto debería evitar silenciosamente la carga del código que no es de confianza, ya sea involuntariamente de from y adversary. –

Ayuda para comprender la salida jstack

Respuesta

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