[
https://issues.apache.org/jira/browse/FC-38?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14196342#comment-14196342
]
Shawn McKinney commented on FC-38:
----------------------------------
previous TD was JVM 1.7.0_10 reproduced with jdk1.7.0_71
Full thread dump
""http-bio-8080"-exec-3@5016" daemon prio=5 tid=0x26 nid=NA waiting
java.lang.Thread.State: WAITING
at sun.misc.Unsafe.park(Unsafe.java:-1)
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.doAcquireShared(AbstractQueuedSynchronizer.java:964)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireShared(AbstractQueuedSynchronizer.java:1282)
at
java.util.concurrent.locks.ReentrantReadWriteLock$ReadLock.lock(ReentrantReadWriteLock.java:731)
at
net.sf.ehcache.concurrent.ReadWriteLockSync.lock(ReadWriteLockSync.java:50)
at
net.sf.ehcache.constructs.blocking.BlockingCache.acquiredLockForKey(BlockingCache.java:186)
at
net.sf.ehcache.constructs.blocking.BlockingCache.get(BlockingCache.java:151)
at
org.apache.directory.fortress.core.util.cache.EhCacheImpl.get(EhCacheImpl.java:77)
at
org.apache.directory.fortress.core.rbac.RoleUtil.getGraph(RoleUtil.java:359)
at
org.apache.directory.fortress.core.rbac.RoleUtil.getInheritedRoles(RoleUtil.java:183)
at
org.apache.directory.fortress.core.rbac.AccessMgrImpl.authorizedRoles(AccessMgrImpl.java:267)
at
org.apache.directory.fortress.realm.J2eePolicyMgrImpl.hasRole(J2eePolicyMgrImpl.java:407)
at
org.apache.directory.fortress.realm.tomcat.TcAccessMgrImpl.hasRole(TcAccessMgrImpl.java:118)
at
org.apache.directory.fortress.realm.tomcat.Tc7AccessMgrProxy.hasRole(Tc7AccessMgrProxy.java:178)
at
org.apache.catalina.realm.RealmBase.hasResourcePermission(RealmBase.java:847)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:557)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:562)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:395)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:250)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188)
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302)
- locked <0x13a2> (a org.apache.tomcat.util.net.SocketWrapper)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
"NioProcessor-2@4925" prio=5 tid=0x25 nid=NA runnable
java.lang.Thread.State: RUNNABLE
at sun.nio.ch.EPollArrayWrapper.epollWait(EPollArrayWrapper.java:-1)
at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
- locked <0x13a3> (a sun.nio.ch.EPollSelectorImpl)
- locked <0x13a4> (a java.util.Collections$UnmodifiableSet)
- locked <0x13a5> (a sun.nio.ch.Util$2)
at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
at
org.apache.mina.transport.socket.nio.NioProcessor.select(NioProcessor.java:72)
at
org.apache.mina.core.polling.AbstractPollingIoProcessor$Processor.run(AbstractPollingIoProcessor.java:1077)
at
org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:64)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
"NioProcessor-1@2537" prio=5 tid=0xf nid=NA runnable
java.lang.Thread.State: RUNNABLE
at sun.nio.ch.EPollArrayWrapper.epollWait(EPollArrayWrapper.java:-1)
at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
- locked <0x13a7> (a sun.nio.ch.EPollSelectorImpl)
- locked <0x13a8> (a java.util.Collections$UnmodifiableSet)
- locked <0x13a9> (a sun.nio.ch.Util$2)
at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
at
org.apache.mina.transport.socket.nio.NioProcessor.select(NioProcessor.java:72)
at
org.apache.mina.core.polling.AbstractPollingIoProcessor$Processor.run(AbstractPollingIoProcessor.java:1077)
at
org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:64)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
""http-bio-8080"-exec-2@4826" daemon prio=5 tid=0x23 nid=NA waiting
java.lang.Thread.State: WAITING
at sun.misc.Unsafe.park(Unsafe.java:-1)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
at
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
at org.apache.tomcat.util.threads.TaskQueue.take(TaskQueue.java:104)
at org.apache.tomcat.util.threads.TaskQueue.take(TaskQueue.java:32)
at
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
""http-bio-8080"-exec-1@4728" daemon prio=5 tid=0x22 nid=NA waiting
java.lang.Thread.State: WAITING
at sun.misc.Unsafe.park(Unsafe.java:-1)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
at
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
at org.apache.tomcat.util.threads.TaskQueue.take(TaskQueue.java:104)
at org.apache.tomcat.util.threads.TaskQueue.take(TaskQueue.java:32)
at
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
"pool-4-thread-1@4924" prio=5 tid=0x24 nid=NA waiting
java.lang.Thread.State: WAITING
at sun.misc.Unsafe.park(Unsafe.java:-1)
at
java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:226)
at
java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:460)
at
java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:359)
at
java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:942)
at
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
"GC Daemon@1335" daemon prio=2 tid=0xd nid=NA waiting
java.lang.Thread.State: WAITING
at java.lang.Object.wait(Object.java:-1)
at sun.misc.GC$Daemon.run(GC.java:117)
""ajp-bio-8009"-Acceptor-0@4722" daemon prio=5 tid=0x1f nid=NA runnable
java.lang.Thread.State: RUNNABLE
at java.net.PlainSocketImpl.socketAccept(PlainSocketImpl.java:-1)
at
java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:398)
at java.net.ServerSocket.implAccept(ServerSocket.java:530)
at java.net.ServerSocket.accept(ServerSocket.java:498)
at
org.apache.tomcat.util.net.DefaultServerSocketFactory.acceptSocket(DefaultServerSocketFactory.java:59)
at
org.apache.tomcat.util.net.JIoEndpoint$Acceptor.run(JIoEndpoint.java:211)
at java.lang.Thread.run(Thread.java:745)
""http-bio-8443"-Acceptor-0@4720" daemon prio=5 tid=0x1d nid=NA runnable
java.lang.Thread.State: RUNNABLE
at java.net.PlainSocketImpl.socketAccept(PlainSocketImpl.java:-1)
at
java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:398)
at java.net.ServerSocket.implAccept(ServerSocket.java:530)
at
sun.security.ssl.SSLServerSocketImpl.accept(SSLServerSocketImpl.java:317)
at
org.apache.tomcat.util.net.jsse.JSSESocketFactory.acceptSocket(JSSESocketFactory.java:182)
at
org.apache.tomcat.util.net.JIoEndpoint$Acceptor.run(JIoEndpoint.java:211)
at java.lang.Thread.run(Thread.java:745)
""http-bio-8080"-Acceptor-0@4714" daemon prio=5 tid=0x1b nid=NA runnable
java.lang.Thread.State: RUNNABLE
at java.net.PlainSocketImpl.socketAccept(PlainSocketImpl.java:-1)
at
java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:398)
at java.net.ServerSocket.implAccept(ServerSocket.java:530)
at java.net.ServerSocket.accept(ServerSocket.java:498)
at
org.apache.tomcat.util.net.DefaultServerSocketFactory.acceptSocket(DefaultServerSocketFactory.java:59)
at
org.apache.tomcat.util.net.JIoEndpoint$Acceptor.run(JIoEndpoint.java:211)
at java.lang.Thread.run(Thread.java:745)
"main@1" prio=5 tid=0x1 nid=NA runnable
java.lang.Thread.State: RUNNABLE
at java.net.PlainSocketImpl.socketAccept(PlainSocketImpl.java:-1)
at
java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:398)
at java.net.ServerSocket.implAccept(ServerSocket.java:530)
at java.net.ServerSocket.accept(ServerSocket.java:498)
at
org.apache.catalina.core.StandardServer.await(StandardServer.java:447)
at org.apache.catalina.startup.Catalina.await(Catalina.java:707)
at org.apache.catalina.startup.Catalina.start(Catalina.java:653)
at
sun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethodAccessorImpl.java:-1)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:303)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:431)
""ajp-bio-8009"-AsyncTimeout@4723" daemon prio=5 tid=0x20 nid=NA sleeping
java.lang.Thread.State: TIMED_WAITING
at java.lang.Thread.sleep(Thread.java:-1)
at
org.apache.tomcat.util.net.JIoEndpoint$AsyncTimeout.run(JIoEndpoint.java:143)
at java.lang.Thread.run(Thread.java:745)
""http-bio-8443"-AsyncTimeout@4721" daemon prio=5 tid=0x1e nid=NA sleeping
java.lang.Thread.State: TIMED_WAITING
at java.lang.Thread.sleep(Thread.java:-1)
at
org.apache.tomcat.util.net.JIoEndpoint$AsyncTimeout.run(JIoEndpoint.java:143)
at java.lang.Thread.run(Thread.java:745)
""http-bio-8080"-AsyncTimeout@4716" daemon prio=5 tid=0x1c nid=NA sleeping
java.lang.Thread.State: TIMED_WAITING
at java.lang.Thread.sleep(Thread.java:-1)
at
org.apache.tomcat.util.net.JIoEndpoint$AsyncTimeout.run(JIoEndpoint.java:143)
at java.lang.Thread.run(Thread.java:745)
"ContainerBackgroundProcessor[StandardEngine[Catalina]]@4706" daemon prio=5
tid=0x1a nid=NA sleeping
java.lang.Thread.State: TIMED_WAITING
at java.lang.Thread.sleep(Thread.java:-1)
at
org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1369)
at java.lang.Thread.run(Thread.java:745)
"fortress-demo@2868" daemon prio=5 tid=0x10 nid=NA waiting
java.lang.Thread.State: WAITING
at java.lang.Object.wait(Object.java:-1)
at java.util.TimerThread.mainLoop(Timer.java:552)
at java.util.TimerThread.run(Timer.java:505)
"Finalizer@3285" daemon prio=8 tid=0x3 nid=NA waiting
java.lang.Thread.State: WAITING
at java.lang.Object.wait(Object.java:-1)
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:135)
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:151)
at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:209)
"Reference Handler@4846" daemon prio=10 tid=0x2 nid=NA waiting
java.lang.Thread.State: WAITING
at java.lang.Object.wait(Object.java:-1)
at java.lang.Object.wait(Object.java:503)
at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:133)
"Signal Dispatcher@4845" daemon prio=9 tid=0x4 nid=NA runnable
java.lang.Thread.State: RUNNABLE
> Potential issues on synchronized protected elements
> ---------------------------------------------------
>
> Key: FC-38
> URL: https://issues.apache.org/jira/browse/FC-38
> Project: FORTRESS-CORE
> Issue Type: Bug
> Affects Versions: 1.0.0-RC39
> Reporter: Emmanuel Lecharny
> Priority: Critical
> Fix For: 1.0.0-RC40
>
>
> There are some classes where we protect a field with a synchronized in order
> to avoid concurrent modifications. That's ok, except that one should not
> access the field while it's being updated. There are a few cases where it's
> done, and this should be fixed.
> The way to do it is to use ReentrantReadWriteLock for that : it allows
> concurrent reads, unless a write lock is taken. Writes will block other
> writes and all the reads until it's done.
> The OrgUnitP and PolicyP are protecting sets while updating it that aren't
> protected when read (this is fixed for OrgUnitP)
> The AdminRoleUtil, HierUtil, PsoUtil, UsoUtil are all manipulating a graph
> object which is synchronized on update, but not on read. This is probably
> more complex to fix than for the OrgUnitP/PolicyP classes.
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