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https://issues.apache.org/jira/browse/QPID-4660?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Keith Wall resolved QPID-4660.
------------------------------
Resolution: Fixed
Fixed in 1.7u60 JVM bug JDK-8022788
http://bugs.java.com/bugdatabase/view_bug.do?bug_id=8022788
> [Java Broker] A deadlock can sporadically occur on broker shutdown when
> stopping a Jetty server which is in the process of sending a response over
> HTTPS
> --------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: QPID-4660
> URL: https://issues.apache.org/jira/browse/QPID-4660
> Project: Qpid
> Issue Type: Bug
> Components: Java Broker
> Affects Versions: 0.21
> Environment: RHEL 5.3, JDK 1.7.0_14
> Reporter: Alex Rudyy
> Attachments:
> TEST-org.apache.qpid.systest.rest.BasicAuthRestTest.testDisablingForHttps.out,
> deadlock-jdk1.7.0_17.txt
>
>
> When running a system test suite
> org.apache.qpid.systest.rest.BasicAuthRestTest with JDK 1.7 a deadlock might
> occur on shutting down the broker whilst it still tries to send some data
> over HTTPS:
> {noformat}
> Found one Java-level deadlock:
> =============================
> "qtp538763660-62":
> waiting to lock monitor 0x000000000c91c440 (object 0x00000000f9404e28, a
> sun.security.ssl.SSLSocketImpl),
> which is held by "Broker-Configuration-Thread"
> "Broker-Configuration-Thread":
> waiting for ownable synchronizer 0x00000000f95c6278, (a
> java.util.concurrent.locks.ReentrantLock$NonfairSync),
> which is held by "qtp538763660-62"
> Java stack information for the threads listed above:
> ===================================================
> "qtp538763660-62":
> at
> sun.security.ssl.SSLSocketImpl.getConnectionState(SSLSocketImpl.java:649)
> - waiting to lock <0x00000000f9404e28> (a
> sun.security.ssl.SSLSocketImpl)
> at sun.security.ssl.SSLSocketImpl.isClosed(SSLSocketImpl.java:1446)
> at java.net.Socket.getTcpNoDelay(Socket.java:953)
> at
> sun.security.ssl.BaseSSLSocketImpl.getTcpNoDelay(BaseSSLSocketImpl.java:345)
> at
> sun.security.ssl.SSLSocketImpl.writeRecordInternal(SSLSocketImpl.java:819)
> at sun.security.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:801)
> at sun.security.ssl.AppOutputStream.write(AppOutputStream.java:122)
> - locked <0x00000000f95c60b8> (a sun.security.ssl.AppOutputStream)
> at
> org.eclipse.jetty.io.ByteArrayBuffer.writeTo(ByteArrayBuffer.java:354)
> at
> org.eclipse.jetty.io.bio.StreamEndPoint.flush(StreamEndPoint.java:159)
> at
> org.eclipse.jetty.io.bio.StreamEndPoint.flush(StreamEndPoint.java:189)
> at
> org.eclipse.jetty.http.HttpGenerator.flushBuffer(HttpGenerator.java:876)
> at
> org.eclipse.jetty.http.AbstractGenerator.flush(AbstractGenerator.java:438)
> at org.eclipse.jetty.server.HttpOutput.flush(HttpOutput.java:94)
> at
> org.eclipse.jetty.server.AbstractHttpConnection$Output.flush(AbstractHttpConnection.java:1016)
> at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:173)
> at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:101)
> at
> org.eclipse.jetty.util.ByteArrayISO8859Writer.writeTo(ByteArrayISO8859Writer.java:102)
> at org.eclipse.jetty.server.Response.sendError(Response.java:374)
> at
> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:562)
> at
> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:225)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1031)
> at
> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:406)
> at
> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:186)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:965)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
> at
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:111)
> at org.eclipse.jetty.server.Server.handle(Server.java:348)
> at
> org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:452)
> at
> org.eclipse.jetty.server.BlockingHttpConnection.handleRequest(BlockingHttpConnection.java:47)
> at
> org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:884)
> at
> org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:938)
> at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:630)
> at
> org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:230)
> at
> org.eclipse.jetty.server.BlockingHttpConnection.handle(BlockingHttpConnection.java:66)
> at
> org.eclipse.jetty.server.bio.SocketConnector$ConnectorEndPoint.run(SocketConnector.java:254)
> at
> org.eclipse.jetty.server.ssl.SslSocketConnector$SslConnectorEndPoint.run(SslSocketConnector.java:665)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:603)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:538)
> at java.lang.Thread.run(Thread.java:722)
> "Broker-Configuration-Thread":
> at sun.misc.Unsafe.park(Native Method)
> - parking to wait for <0x00000000f95c6278> (a
> java.util.concurrent.locks.ReentrantLock$NonfairSync)
> at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:834)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:867)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1197)
> at
> java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:214)
> at
> java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:290)
> at sun.security.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:799)
> at sun.security.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:672)
> at sun.security.ssl.SSLSocketImpl.sendAlert(SSLSocketImpl.java:2007)
> at sun.security.ssl.SSLSocketImpl.warning(SSLSocketImpl.java:1834)
> at
> sun.security.ssl.SSLSocketImpl.closeInternal(SSLSocketImpl.java:1602)
> - locked <0x00000000f9404e28> (a sun.security.ssl.SSLSocketImpl)
> at sun.security.ssl.SSLSocketImpl.close(SSLSocketImpl.java:1538)
> at
> org.eclipse.jetty.io.bio.SocketEndPoint.close(SocketEndPoint.java:156)
> at
> org.eclipse.jetty.server.bio.SocketConnector$ConnectorEndPoint.close(SocketConnector.java:233)
> at
> org.eclipse.jetty.server.ssl.SslSocketConnector$SslConnectorEndPoint.close(SslSocketConnector.java:613)
> at
> org.eclipse.jetty.server.bio.SocketConnector.doStop(SocketConnector.java:167)
> at
> org.eclipse.jetty.server.ssl.SslSocketConnector.doStop(SslSocketConnector.java:371)
> at
> org.eclipse.jetty.util.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:84)
> - locked <0x00000000f94069a0> (a java.lang.Object)
> at org.eclipse.jetty.server.Server.doStop(Server.java:318)
> at
> org.eclipse.jetty.util.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:84)
> - locked <0x00000000f9406dc0> (a java.lang.Object)
> at
> org.apache.qpid.server.management.plugin.HttpManagement.stop(HttpManagement.java:187)
> at
> org.apache.qpid.server.management.plugin.HttpManagement.setState(HttpManagement.java:156)
> at
> org.apache.qpid.server.model.adapter.AbstractAdapter.setDesiredState(AbstractAdapter.java:88)
> at
> org.apache.qpid.server.model.adapter.BrokerAdapter.changeState(BrokerAdapter.java:776)
> - locked <0x00000000f958c040> (a java.util.HashMap)
> at
> org.apache.qpid.server.model.adapter.BrokerAdapter.setState(BrokerAdapter.java:749)
> at
> org.apache.qpid.server.model.adapter.AbstractAdapter.setDesiredState(AbstractAdapter.java:88)
> at
> org.apache.qpid.server.configuration.updater.ChangeStateTask.call(ChangeStateTask.java:59)
> at
> org.apache.qpid.server.configuration.updater.ChangeStateTask.call(ChangeStateTask.java:28)
> at
> org.apache.qpid.server.configuration.updater.TaskExecutor.executeTask(TaskExecutor.java:213)
> at
> org.apache.qpid.server.configuration.updater.TaskExecutor.access$200(TaskExecutor.java:46)
> at
> org.apache.qpid.server.configuration.updater.TaskExecutor$CallableWrapper$1.run(TaskExecutor.java:252)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:415)
> at
> org.apache.qpid.server.configuration.updater.TaskExecutor$CallableWrapper.call(TaskExecutor.java:247)
> at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
> at java.util.concurrent.FutureTask.run(FutureTask.java:166)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:722)
> Found 1 deadlock.
> {noformat}
> It seems that the issue does not exist on JDK 1.6. I've been running tests
> for 2 days with JDK 1.6.0_33 but was not able to reproduce it.
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