1 Reply Latest reply on Apr 11, 2011 7:29 AM by tal2700

WorkManager synchronization issue

tal2700 Apr 10, 2011 8:48 AM

Hi All,

I have synchronization problem in my WorkManagers threads,

I'm seeing threads locked every time I doing jstack.

My application send/get messages from the network, the problem happen in the uplink, when message should forward from the resource adapter to the ejb. i'm using jms for this.

when i run the JBoss on windows I don't get this problem, it happen only on Centos system. the performance on my windows laptop is x3 from the Xeon linux machine, my application written on ejb 2. in the test case i did, the RA and the ejb run on the same VM. i bold the line in the stack trace that related to my code.

Thanks,

Tal,

"WorkManager(2)-9" daemon prio=10 tid=0x00000000517eb000 nid=0x3483 runnable [0x0000000045e99000]

java.lang.Thread.State: RUNNABLE

at java.util.zip.ZipFile.getEntry(Native Method)

at java.util.zip.ZipFile.getEntry(ZipFile.java:149)

- locked <0x00002aaabe89a7e8> (a java.util.jar.JarFile)

at java.util.jar.JarFile.getEntry(JarFile.java:208)

at java.util.jar.JarFile.getJarEntry(JarFile.java:191)

at sun.misc.URLClassPath$JarLoader.getResource(URLClassPath.java:757)

at sun.misc.URLClassPath.getResource(URLClassPath.java:169)

at java.net.URLClassLoader$1.run(URLClassLoader.java:194)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(URLClassLoader.java:190)

at java.lang.ClassLoader.loadClass(ClassLoader.java:307)

- locked <0x00002aaabe230220> (a org.jboss.system.NoAnnotationURLClassLoader)

at java.lang.ClassLoader.loadClass(ClassLoader.java:248)

at java.lang.Class.forName0(Native Method)

at java.lang.Class.forName(Class.java:247)

at org.jboss.classloader.plugins.loader.ClassLoaderToLoaderAdapter.loadClass(ClassLoaderToLoaderAdapter.java:173)

at org.jboss.classloader.spi.ClassLoaderDomain.loadClassFromParent(ClassLoaderDomain.java:352)

at org.jboss.classloader.spi.ClassLoaderDomain.loadClassBefore(ClassLoaderDomain.java:307)

at org.jboss.classloader.spi.base.BaseClassLoaderDomain.loadClass(BaseClassLoaderDomain.java:243)

at org.jboss.classloader.spi.base.BaseClassLoaderDomain.loadClass(BaseClassLoaderDomain.java:1099)

at org.jboss.classloader.spi.base.BaseClassLoader.loadClassFromDomain(BaseClassLoader.java:730)

at org.jboss.classloader.spi.base.BaseClassLoader.loadClass(BaseClassLoader.java:374)

- locked <0x00002aaac36fbb28> (a org.jboss.classloader.spi.base.BaseClassLoader)

at java.lang.ClassLoader.loadClass(ClassLoader.java:248)

at org.jboss.classloading.spi.DelegatingClassLoader.loadClass(DelegatingClassLoader.java:84)

at java.lang.ClassLoader.loadClass(ClassLoader.java:248)

at org.jboss.util.loading.DelegatingClassLoader.loadClass(DelegatingClassLoader.java:92)

at java.lang.ClassLoader.loadClass(ClassLoader.java:248)

at org.jboss.security.SecurityContextFactory.getContextClass(SecurityContextFactory.java:142)

at org.jboss.security.SecurityContextFactory.createUtil(SecurityContextFactory.java:118)

at org.jboss.security.plugins.JBossSecurityContext.getUtil(JBossSecurityContext.java:197)

at org.jboss.security.plugins.JBossSecurityContext.<init>(JBossSecurityContext.java:89)

at sun.reflect.GeneratedConstructorAccessor85.newInstance(Unknown Source)

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)

at java.lang.reflect.Constructor.newInstance(Constructor.java:513)

at org.jboss.security.SecurityContextFactory.createSecurityContext(SecurityContextFactory.java:71)

at org.jboss.security.SecurityContextFactory.createSecurityContext(SecurityContextFactory.java:51)

at org.jboss.security.SecurityContextFactory.createSecurityContext(SecurityContextFactory.java:87)

at org.jboss.ejb.plugins.SecurityActions$1.run(SecurityActions.java:386)

at java.security.AccessController.doPrivileged(Native Method)

at org.jboss.ejb.plugins.SecurityActions.createAndSetSecurityContext(SecurityActions.java:382)

at org.jboss.ejb.plugins.RunAsSecurityInterceptor.process(RunAsSecurityInterceptor.java:118)

at org.jboss.ejb.plugins.RunAsSecurityInterceptor.invoke(RunAsSecurityInterceptor.java:103)

at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:205)

at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:138)

at org.jboss.ejb.MessageDrivenContainer.internalInvoke(MessageDrivenContainer.java:416)

at org.jboss.ejb.Container.invoke(Container.java:1028)

at sun.reflect.GeneratedMethodAccessor166.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:157)

at org.jboss.mx.server.Invocation.dispatch(Invocation.java:96)

at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)

at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)

at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:668)

at org.jboss.invocation.local.LocalInvoker$MBeanServerAction.invoke(LocalInvoker.java:169)

at org.jboss.invocation.local.LocalInvoker.invoke(LocalInvoker.java:118)

at org.jboss.invocation.InvokerInterceptor.invokeLocal(InvokerInterceptor.java:193)

at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:179)

at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:61)

at org.jboss.ejb.plugins.inflow.MessageEndpointInterceptor.delivery(MessageEndpointInterceptor.java:249)

at org.jboss.ejb.plugins.inflow.MessageEndpointInterceptor.invoke(MessageEndpointInterceptor.java:128)

at org.jboss.proxy.ClientMethodInterceptor.invoke(ClientMethodInterceptor.java:74)

at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:101)

at $Proxy152.onMessage(Unknown Source)

at com.tal.aa.jca.MessageQueueListener.run(MessageQueueListener.java:63)

at org.jboss.resource.work.WorkWrapper.execute(WorkWrapper.java:204)

at org.jboss.util.threadpool.BasicTaskWrapper.run(BasicTaskWrapper.java:260)

at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)

at java.lang.Thread.run(Thread.java:619)

"WorkManager(2)-8" daemon prio=10 tid=0x0000000052438000 nid=0x3482 waiting for monitor entry [0x0000000045d99000]

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

at org.jboss.classloader.spi.base.BaseClassLoader.loadClass(BaseClassLoader.java:352)

- waiting to lock <0x00002aaac36fbb28> (a org.jboss.classloader.spi.base.BaseClassLoader)

at java.lang.ClassLoader.loadClass(ClassLoader.java:248)

at org.jboss.classloading.spi.DelegatingClassLoader.loadClass(DelegatingClassLoader.java:84)

at java.lang.ClassLoader.loadClass(ClassLoader.java:248)

at org.jboss.util.loading.DelegatingClassLoader.loadClass(DelegatingClassLoader.java:92)

at java.lang.ClassLoader.loadClass(ClassLoader.java:248)

at org.jboss.security.SecurityContextFactory.getContextClass(SecurityContextFactory.java:142)

at org.jboss.security.SecurityContextFactory.createSecurityContext(SecurityContextFactory.java:68)

at org.jboss.security.SecurityContextFactory.createSecurityContext(SecurityContextFactory.java:51)

at org.jboss.security.SecurityContextFactory.createSecurityContext(SecurityContextFactory.java:87)

at org.jboss.ejb.plugins.SecurityActions$1.run(SecurityActions.java:386)

at java.security.AccessController.doPrivileged(Native Method)

at org.jboss.ejb.plugins.SecurityActions.createAndSetSecurityContext(SecurityActions.java:382)

at org.jboss.ejb.plugins.SecurityInterceptor.shouldBypassSecurity(SecurityInterceptor.java:381)

at org.jboss.ejb.plugins.SecurityInterceptor.process(SecurityInterceptor.java:218)

at org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:206)

at org.jboss.ejb.plugins.security.PreSecurityInterceptor.process(PreSecurityInterceptor.java:98)

at org.jboss.ejb.plugins.security.PreSecurityInterceptor.invoke(PreSecurityInterceptor.java:81)

at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:205)

at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:138)

at org.jboss.ejb.SessionContainer.internalInvoke(SessionContainer.java:651)