[jboss-jira] [JBoss JIRA] Created: (JBAS-7667) java.lang.IllegalAccessException: Failed to find connection exception in multithreaded environment

[Smita Nimbalkar (JIRA)]

java.lang.IllegalAccessException: Failed to find connection exception in multithreaded environment
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                 Key: JBAS-7667
                 URL: https://jira.jboss.org/jira/browse/JBAS-7667
             Project: JBoss Application Server
          Issue Type: Bug
      Security Level: Public (Everyone can see)
    Affects Versions: JBossAS-5.1.0.GA
         Environment: JBoss Version: jboss-5.1.0.GA, OS: Linux (2.6.18-164.el5), Architecture: amd64 64bit, JVM: Java HotSpot(TM) 64-Bit Server VM (14.0-b16, mixed mode) 
            Reporter: Smita Nimbalkar


I have a method which takes java.sql.Connection from connection pool do some operation on DB and  then close connection (i.e. return to the pool). There are multiple threads which are executing this method. Every time I execute this in multithreaded environment  I get java.lang.IllegalAccessException: Failed to find connection exception on line connection.prepareStatement(query) of my class. But this issue goes away if I synchronize (on class object) code block which closes DB connection. Following is a exception trace:

Caused by: java.lang.IllegalAccessException: Failed to find connection: 2365173
	at org.jboss.resource.adapter.jdbc.remote.WrapperDataSourceService.invoke(WrapperDataSourceService.java:212)
	at sun.reflect.GeneratedMethodAccessor283.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.jrmp.server.JRMPInvoker$MBeanServerAction.invoke(JRMPInvoker.java:855)
	at org.jboss.invocation.jrmp.server.JRMPInvoker.invoke(JRMPInvoker.java:422)
	at sun.reflect.GeneratedMethodAccessor282.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:305)
	at sun.rmi.transport.Transport$1.run(Transport.java:159)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
	at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:619)
	at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(Unknown Source)
	at sun.rmi.transport.StreamRemoteCall.executeCall(Unknown Source)
	at sun.rmi.server.UnicastRef.invoke(Unknown Source)
	at org.jboss.invocation.jrmp.server.JRMPInvoker_Stub.invoke(Unknown Source)
	at org.jboss.invocation.jrmp.interfaces.JRMPInvokerProxy.invoke(JRMPInvokerProxy.java:133)
	at org.jboss.invocation.InvokerInterceptor.invokeInvoker(InvokerInterceptor.java:365)
	at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:197)
	at org.jboss.proxy.ClientMethodInterceptor.invoke(ClientMethodInterceptor.java:74)
	at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:101)
	... 15 more


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