Hi,

I've got a problem while calling a REST service on my application sometimes 
an IllegalStateException is thrown while starting the persistence service 
there the stack trace below.
The thing is that i don't call the begin() method of the unitOfWork any 
where else in my application and the problem occurs only on the integration 
server.

The server is a Tomcat 7.0 and i'm usiing Guice 3.0

If someone has a clue it would be really helpfull.

Thanks for your answer.


java.lang.IllegalStateException: Work already begun on this thread. Looks 
like you have called UnitOfWork.begin() twice without a balancing call to 
end() in between.
at 
com.google.inject.internal.util.$Preconditions.checkState(Preconditions.java:142)
at 
com.google.inject.persist.jpa.JpaPersistService.begin(JpaPersistService.java:66)
at com.google.inject.persist.PersistFilter.doFilter(PersistFilter.java:87)
at 
com.google.inject.servlet.FilterDefinition.doFilter(FilterDefinition.java:163)
at 
com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:58)
at com.myapp.utils.rest.filters.MethodFilter.doFilter(MethodFilter.java:53)
at 
com.google.inject.servlet.FilterDefinition.doFilter(FilterDefinition.java:163)
at 
com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:58)
at com.myapp.utils.rest.filters.DebugFilter.doFilter(DebugFilter.java:60)
at 
com.google.inject.servlet.FilterDefinition.doFilter(FilterDefinition.java:163)
at 
com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:58)
at 
com.google.inject.servlet.ManagedFilterPipeline.dispatch(ManagedFilterPipeline.java:118)
at com.google.inject.servlet.GuiceFilter.doFilter(GuiceFilter.java:113)
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at 
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:931)
at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at 
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004)
at 
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at 
org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1822)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

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