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Posted to user@geronimo.apache.org by the666pack <ma...@gmail.com> on 2008/03/17 07:46:07 UTC
OptimisticLockException
Hello,
so i try to test the server how it handles concurrent delete requests. i
start quite low with 5 concurrent users trying to delete some values from
the database. the problem is that i keep getting the error mentioned in the
subject. the more concurrent users i schedule, the more errors i get until
about 30 concurrent users the performance levels off quite low. the thing i
do in my code is removing a persistent entity:
// em.lock(director,LockModeType.WRITE); //optimistic lock
exception??????
em.remove(director);
//em.flush(); //because of optimistic lock
exception
deleted++;
i also tried with the help of the commented out lines, but without a
significant performance increase, here is the error log, maybe someone could
help, THANK YOU!
[exec] Caused by: <openjpa-1.0.0-r420667:568756 nonfatal store error>
org.apache.openjpa.persistence.OptimisticLockException: An optimistic lock
violation was detected when flushing object instance
"vt.bean.entity.Director-1192302" to the data store. This indicates that
the object was concurrently modified in another transaction.
[exec] FailedObject: vt.bean.entity.Director-1192302
[exec] at
org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.flushInternal(PreparedStatementManagerImpl.java:101)
[exec] at
org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.flush(PreparedStatementManagerImpl.java:73)
[exec] at
org.apache.openjpa.jdbc.kernel.OperationOrderUpdateManager.flushPrimaryRow(OperationOrderUpdateManager.java:162)
[exec] at
org.apache.openjpa.jdbc.kernel.OperationOrderUpdateManager.flush(OperationOrderUpdateManager.java:89)
[exec] at
org.apache.openjpa.jdbc.kernel.AbstractUpdateManager.flush(AbstractUpdateManager.java:89)
[exec] at
org.apache.openjpa.jdbc.kernel.AbstractUpdateManager.flush(AbstractUpdateManager.java:72)
[exec] at
org.apache.openjpa.jdbc.kernel.JDBCStoreManager.flush(JDBCStoreManager.java:514)
[exec] at
org.apache.openjpa.kernel.DelegatingStoreManager.flush(DelegatingStoreManager.java:130)
[exec] ... 42 more
[exec] NestedThrowables:
[exec] <openjpa-1.0.0-r420667:568756 nonfatal store error>
org.apache.openjpa.persistence.OptimisticLockException: An optimistic lock
violation was detected when flushing object instance
"vt.bean.entity.Director-1192302" to the data store. This indicates that
the object was concurrently modified in another transaction.
[exec] FailedObject: vt.bean.entity.Director-1192302
[exec] at
org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.flushInternal(PreparedStatementManagerImpl.java:101)
[exec] at
org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.flush(PreparedStatementManagerImpl.java:73)
[exec] at
org.apache.openjpa.jdbc.kernel.OperationOrderUpdateManager.flushPrimaryRow(OperationOrderUpdateManager.java:162)
[exec] at
org.apache.openjpa.jdbc.kernel.OperationOrderUpdateManager.flush(OperationOrderUpdateManager.java:89)
[exec] at
org.apache.openjpa.jdbc.kernel.AbstractUpdateManager.flush(AbstractUpdateManager.java:89)
[exec] at
org.apache.openjpa.jdbc.kernel.AbstractUpdateManager.flush(AbstractUpdateManager.java:72)
[exec] at
org.apache.openjpa.jdbc.kernel.JDBCStoreManager.flush(JDBCStoreManager.java:514)
[exec] at
org.apache.openjpa.kernel.DelegatingStoreManager.flush(DelegatingStoreManager.java:130)
[exec] at
org.apache.openjpa.kernel.BrokerImpl.flush(BrokerImpl.java:1946)
[exec] at
org.apache.openjpa.kernel.BrokerImpl.flushSafe(BrokerImpl.java:1844)
[exec] at
org.apache.openjpa.kernel.BrokerImpl.flush(BrokerImpl.java:1615)
[exec] at
org.apache.openjpa.kernel.DelegatingBroker.flush(DelegatingBroker.java:973)
[exec] at
org.apache.openjpa.persistence.EntityManagerImpl.flush(EntityManagerImpl.java:488)
[exec] at
vt.bean.stateless.DeleteDataBean.removeDirectors(DeleteDataBean.java:115)
[exec] at sun.reflect.GeneratedMethodAccessor175.invoke(Unknown
Source)
[exec] at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[exec] at java.lang.reflect.Method.invoke(Method.java:597)
[exec] at
org.apache.openejb.core.interceptor.ReflectionInvocationContext$Invocation.invoke(ReflectionInvocationContext.java:146)
[exec] at
org.apache.openejb.core.interceptor.ReflectionInvocationContext.proceed(ReflectionInvocationContext.java:129)
[exec] at
org.apache.openejb.core.interceptor.InterceptorStack.invoke(InterceptorStack.java:67)
[exec] at
org.apache.openejb.core.stateless.StatelessContainer._invoke(StatelessContainer.java:203)
[exec] at
org.apache.openejb.core.stateless.StatelessContainer.invoke(StatelessContainer.java:165)
[exec] at
org.apache.openejb.core.ivm.EjbObjectProxyHandler.businessMethod(EjbObjectProxyHandler.java:223)
[exec] at
org.apache.openejb.core.ivm.EjbObjectProxyHandler._invoke(EjbObjectProxyHandler.java:77)
[exec] at
org.apache.openejb.core.ivm.BaseEjbProxyHandler.invoke(BaseEjbProxyHandler.java:245)
[exec] at
org.apache.openejb.util.proxy.Jdk13InvocationHandler.invoke(Jdk13InvocationHandler.java:49)
[exec] at $Proxy23.removeDirectors(Unknown Source)
[exec] at
org.apache.jsp.removeTool_jsp._jspService(removeTool_jsp.java:163)
[exec] at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
[exec] at
javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
[exec] at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:388)
[exec] at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
[exec] at
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
[exec] at
javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
[exec] at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
[exec] at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
[exec] at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
[exec] at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
[exec] at
org.apache.geronimo.tomcat.valve.DefaultSubjectValve.invoke(DefaultSubjectValve.java:56)
[exec] at
org.apache.geronimo.tomcat.GeronimoStandardContext$SystemMethodValve.invoke(GeronimoStandardContext.java:353)
[exec] at
org.apache.geronimo.tomcat.valve.GeronimoBeforeAfterValve.invoke(GeronimoBeforeAfterValve.java:47)
[exec] at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
[exec] at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
[exec] at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
[exec] at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:563)
[exec] at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:261)
[exec] at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
[exec] at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:581)
[exec] at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
[exec] at java.lang.Thread.run(Thread.java:619)
[exec] 07:12:28,046 ERROR [[jsp]] Servlet.service() for servlet jsp
threw exception
[exec] java.lang.Exception: <openjpa-1.0.0-r420667:568756 nonfatal
store error> org.apache.openjpa.persistence.OptimisticLockException: An
optimistic lock violation was detected when flushing object instance
"vt.bean.entity.Director-1192302" to the data store. This indicates that
the object was concurrently modified in another transaction.
[exec] FailedObject: vt.bean.entity.Director-1192302
[exec] at
org.apache.openjpa.util.Exceptions.replaceNestedThrowables(Exceptions.java:242)
[exec] at
org.apache.openjpa.persistence.OptimisticLockException.writeObject(OptimisticLockException.java:101)
[exec] at sun.reflect.GeneratedMethodAccessor179.invoke(Unknown
Source)
[exec] at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[exec] at java.lang.reflect.Method.invoke(Method.java:597)
[exec] at
java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945)
[exec] at
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1461)
[exec] at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
[exec] at
java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
[exec] at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509)
[exec] at
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474)
[exec] at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
[exec] at
java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
[exec] at
java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326)
[exec] at
org.apache.openejb.core.ivm.BaseEjbProxyHandler.copyObj(BaseEjbProxyHandler.java:508)
[exec] at
org.apache.openejb.core.ivm.BaseEjbProxyHandler.invoke(BaseEjbProxyHandler.java:250)
[exec] at
org.apache.openejb.util.proxy.Jdk13InvocationHandler.invoke(Jdk13InvocationHandler.java:49)
[exec] at $Proxy23.removeDirectors(Unknown Source)
[exec] at
org.apache.jsp.removeTool_jsp._jspService(removeTool_jsp.java:163)
[exec] at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
[exec] at
javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
[exec] at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:388)
[exec] at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
[exec] at
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
[exec] at
javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
[exec] at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
[exec] at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
[exec] at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
[exec] at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
[exec] at
org.apache.geronimo.tomcat.valve.DefaultSubjectValve.invoke(DefaultSubjectValve.java:56)
[exec] at
org.apache.geronimo.tomcat.GeronimoStandardContext$SystemMethodValve.invoke(GeronimoStandardContext.java:353)
[exec] at
org.apache.geronimo.tomcat.valve.GeronimoBeforeAfterValve.invoke(GeronimoBeforeAfterValve.java:47)
[exec] at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
[exec] at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
[exec] at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
[exec] at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:563)
[exec] at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:261)
[exec] at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
[exec] at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:581)
[exec] at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
[exec] at java.lang.Thread.run(Thread.java:619)
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Re: OptimisticLockException
Posted by David Jencks <da...@yahoo.com>.
You might get quicker more knowledgeable help on one of the openjpa
lists.
wish I knew more about openjpa configuration :-)
thanks
david jencks
On Mar 16, 2008, at 11:46 PM, the666pack wrote:
>
> Hello,
>
> so i try to test the server how it handles concurrent delete
> requests. i
> start quite low with 5 concurrent users trying to delete some
> values from
> the database. the problem is that i keep getting the error
> mentioned in the
> subject. the more concurrent users i schedule, the more errors i
> get until
> about 30 concurrent users the performance levels off quite low. the
> thing i
> do in my code is removing a persistent entity:
>
> // em.lock(director,LockModeType.WRITE); //optimistic lock
> exception??????
> em.remove(director);
> //em.flush(); //because of optimistic lock
> exception
> deleted++;
>
> i also tried with the help of the commented out lines, but without a
> significant performance increase, here is the error log, maybe
> someone could
> help, THANK YOU!
>
> [exec] Caused by: <openjpa-1.0.0-r420667:568756 nonfatal store error>
> org.apache.openjpa.persistence.OptimisticLockException: An
> optimistic lock
> violation was detected when flushing object instance
> "vt.bean.entity.Director-1192302" to the data store. This
> indicates that
> the object was concurrently modified in another transaction.
> [exec] FailedObject: vt.bean.entity.Director-1192302
> [exec] at
> org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.flushInter
> nal(PreparedStatementManagerImpl.java:101)
> [exec] at
> org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.flush
> (PreparedStatementManagerImpl.java:73)
> [exec] at
> org.apache.openjpa.jdbc.kernel.OperationOrderUpdateManager.flushPrimar
> yRow(OperationOrderUpdateManager.java:162)
> [exec] at
> org.apache.openjpa.jdbc.kernel.OperationOrderUpdateManager.flush
> (OperationOrderUpdateManager.java:89)
> [exec] at
> org.apache.openjpa.jdbc.kernel.AbstractUpdateManager.flush
> (AbstractUpdateManager.java:89)
> [exec] at
> org.apache.openjpa.jdbc.kernel.AbstractUpdateManager.flush
> (AbstractUpdateManager.java:72)
> [exec] at
> org.apache.openjpa.jdbc.kernel.JDBCStoreManager.flush
> (JDBCStoreManager.java:514)
> [exec] at
> org.apache.openjpa.kernel.DelegatingStoreManager.flush
> (DelegatingStoreManager.java:130)
> [exec] ... 42 more
> [exec] NestedThrowables:
> [exec] <openjpa-1.0.0-r420667:568756 nonfatal store error>
> org.apache.openjpa.persistence.OptimisticLockException: An
> optimistic lock
> violation was detected when flushing object instance
> "vt.bean.entity.Director-1192302" to the data store. This
> indicates that
> the object was concurrently modified in another transaction.
> [exec] FailedObject: vt.bean.entity.Director-1192302
> [exec] at
> org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.flushInter
> nal(PreparedStatementManagerImpl.java:101)
> [exec] at
> org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.flush
> (PreparedStatementManagerImpl.java:73)
> [exec] at
> org.apache.openjpa.jdbc.kernel.OperationOrderUpdateManager.flushPrimar
> yRow(OperationOrderUpdateManager.java:162)
> [exec] at
> org.apache.openjpa.jdbc.kernel.OperationOrderUpdateManager.flush
> (OperationOrderUpdateManager.java:89)
> [exec] at
> org.apache.openjpa.jdbc.kernel.AbstractUpdateManager.flush
> (AbstractUpdateManager.java:89)
> [exec] at
> org.apache.openjpa.jdbc.kernel.AbstractUpdateManager.flush
> (AbstractUpdateManager.java:72)
> [exec] at
> org.apache.openjpa.jdbc.kernel.JDBCStoreManager.flush
> (JDBCStoreManager.java:514)
> [exec] at
> org.apache.openjpa.kernel.DelegatingStoreManager.flush
> (DelegatingStoreManager.java:130)
> [exec] at
> org.apache.openjpa.kernel.BrokerImpl.flush(BrokerImpl.java:1946)
> [exec] at
> org.apache.openjpa.kernel.BrokerImpl.flushSafe(BrokerImpl.java:1844)
> [exec] at
> org.apache.openjpa.kernel.BrokerImpl.flush(BrokerImpl.java:1615)
> [exec] at
> org.apache.openjpa.kernel.DelegatingBroker.flush
> (DelegatingBroker.java:973)
> [exec] at
> org.apache.openjpa.persistence.EntityManagerImpl.flush
> (EntityManagerImpl.java:488)
> [exec] at
> vt.bean.stateless.DeleteDataBean.removeDirectors
> (DeleteDataBean.java:115)
> [exec] at sun.reflect.GeneratedMethodAccessor175.invoke
> (Unknown
> Source)
> [exec] at
> sun.reflect.DelegatingMethodAccessorImpl.invoke
> (DelegatingMethodAccessorImpl.java:25)
> [exec] at java.lang.reflect.Method.invoke(Method.java:597)
> [exec] at
> org.apache.openejb.core.interceptor.ReflectionInvocationContext
> $Invocation.invoke(ReflectionInvocationContext.java:146)
> [exec] at
> org.apache.openejb.core.interceptor.ReflectionInvocationContext.procee
> d(ReflectionInvocationContext.java:129)
> [exec] at
> org.apache.openejb.core.interceptor.InterceptorStack.invoke
> (InterceptorStack.java:67)
> [exec] at
> org.apache.openejb.core.stateless.StatelessContainer._invoke
> (StatelessContainer.java:203)
> [exec] at
> org.apache.openejb.core.stateless.StatelessContainer.invoke
> (StatelessContainer.java:165)
> [exec] at
> org.apache.openejb.core.ivm.EjbObjectProxyHandler.businessMethod
> (EjbObjectProxyHandler.java:223)
> [exec] at
> org.apache.openejb.core.ivm.EjbObjectProxyHandler._invoke
> (EjbObjectProxyHandler.java:77)
> [exec] at
> org.apache.openejb.core.ivm.BaseEjbProxyHandler.invoke
> (BaseEjbProxyHandler.java:245)
> [exec] at
> org.apache.openejb.util.proxy.Jdk13InvocationHandler.invoke
> (Jdk13InvocationHandler.java:49)
> [exec] at $Proxy23.removeDirectors(Unknown Source)
> [exec] at
> org.apache.jsp.removeTool_jsp._jspService(removeTool_jsp.java:163)
> [exec] at
> org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
> [exec] at
> javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
> [exec] at
> org.apache.jasper.servlet.JspServletWrapper.service
> (JspServletWrapper.java:388)
> [exec] at
> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:
> 320)
> [exec] at
> org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
> [exec] at
> javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
> [exec] at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter
> (ApplicationFilterChain.java:290)
> [exec] at
> org.apache.catalina.core.ApplicationFilterChain.doFilter
> (ApplicationFilterChain.java:206)
> [exec] at
> org.apache.catalina.core.StandardWrapperValve.invoke
> (StandardWrapperValve.java:230)
> [exec] at
> org.apache.catalina.core.StandardContextValve.invoke
> (StandardContextValve.java:175)
> [exec] at
> org.apache.geronimo.tomcat.valve.DefaultSubjectValve.invoke
> (DefaultSubjectValve.java:56)
> [exec] at
> org.apache.geronimo.tomcat.GeronimoStandardContext
> $SystemMethodValve.invoke(GeronimoStandardContext.java:353)
> [exec] at
> org.apache.geronimo.tomcat.valve.GeronimoBeforeAfterValve.invoke
> (GeronimoBeforeAfterValve.java:47)
> [exec] at
> org.apache.catalina.core.StandardHostValve.invoke
> (StandardHostValve.java:128)
> [exec] at
> org.apache.catalina.valves.ErrorReportValve.invoke
> (ErrorReportValve.java:104)
> [exec] at
> org.apache.catalina.core.StandardEngineValve.invoke
> (StandardEngineValve.java:109)
> [exec] at
> org.apache.catalina.valves.AccessLogValve.invoke
> (AccessLogValve.java:563)
> [exec] at
> org.apache.catalina.connector.CoyoteAdapter.service
> (CoyoteAdapter.java:261)
> [exec] at
> org.apache.coyote.http11.Http11Processor.process
> (Http11Processor.java:844)
> [exec] at
> org.apache.coyote.http11.Http11Protocol
> $Http11ConnectionHandler.process(Http11Protocol.java:581)
> [exec] at
> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:
> 447)
> [exec] at java.lang.Thread.run(Thread.java:619)
> [exec] 07:12:28,046 ERROR [[jsp]] Servlet.service() for
> servlet jsp
> threw exception
> [exec] java.lang.Exception: <openjpa-1.0.0-r420667:568756
> nonfatal
> store error>
> org.apache.openjpa.persistence.OptimisticLockException: An
> optimistic lock violation was detected when flushing object instance
> "vt.bean.entity.Director-1192302" to the data store. This
> indicates that
> the object was concurrently modified in another transaction.
> [exec] FailedObject: vt.bean.entity.Director-1192302
> [exec] at
> org.apache.openjpa.util.Exceptions.replaceNestedThrowables
> (Exceptions.java:242)
> [exec] at
> org.apache.openjpa.persistence.OptimisticLockException.writeObject
> (OptimisticLockException.java:101)
> [exec] at sun.reflect.GeneratedMethodAccessor179.invoke
> (Unknown
> Source)
> [exec] at
> sun.reflect.DelegatingMethodAccessorImpl.invoke
> (DelegatingMethodAccessorImpl.java:25)
> [exec] at java.lang.reflect.Method.invoke(Method.java:597)
> [exec] at
> java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:
> 945)
> [exec] at
> java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:
> 1461)
> [exec] at
> java.io.ObjectOutputStream.writeOrdinaryObject
> (ObjectOutputStream.java:1392)
> [exec] at
> java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
> [exec] at
> java.io.ObjectOutputStream.defaultWriteFields
> (ObjectOutputStream.java:1509)
> [exec] at
> java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:
> 1474)
> [exec] at
> java.io.ObjectOutputStream.writeOrdinaryObject
> (ObjectOutputStream.java:1392)
> [exec] at
> java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
> [exec] at
> java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326)
> [exec] at
> org.apache.openejb.core.ivm.BaseEjbProxyHandler.copyObj
> (BaseEjbProxyHandler.java:508)
> [exec] at
> org.apache.openejb.core.ivm.BaseEjbProxyHandler.invoke
> (BaseEjbProxyHandler.java:250)
> [exec] at
> org.apache.openejb.util.proxy.Jdk13InvocationHandler.invoke
> (Jdk13InvocationHandler.java:49)
> [exec] at $Proxy23.removeDirectors(Unknown Source)
> [exec] at
> org.apache.jsp.removeTool_jsp._jspService(removeTool_jsp.java:163)
> [exec] at
> org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
> [exec] at
> javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
> [exec] at
> org.apache.jasper.servlet.JspServletWrapper.service
> (JspServletWrapper.java:388)
> [exec] at
> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:
> 320)
> [exec] at
> org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
> [exec] at
> javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
> [exec] at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter
> (ApplicationFilterChain.java:290)
> [exec] at
> org.apache.catalina.core.ApplicationFilterChain.doFilter
> (ApplicationFilterChain.java:206)
> [exec] at
> org.apache.catalina.core.StandardWrapperValve.invoke
> (StandardWrapperValve.java:230)
> [exec] at
> org.apache.catalina.core.StandardContextValve.invoke
> (StandardContextValve.java:175)
> [exec] at
> org.apache.geronimo.tomcat.valve.DefaultSubjectValve.invoke
> (DefaultSubjectValve.java:56)
> [exec] at
> org.apache.geronimo.tomcat.GeronimoStandardContext
> $SystemMethodValve.invoke(GeronimoStandardContext.java:353)
> [exec] at
> org.apache.geronimo.tomcat.valve.GeronimoBeforeAfterValve.invoke
> (GeronimoBeforeAfterValve.java:47)
> [exec] at
> org.apache.catalina.core.StandardHostValve.invoke
> (StandardHostValve.java:128)
> [exec] at
> org.apache.catalina.valves.ErrorReportValve.invoke
> (ErrorReportValve.java:104)
> [exec] at
> org.apache.catalina.core.StandardEngineValve.invoke
> (StandardEngineValve.java:109)
> [exec] at
> org.apache.catalina.valves.AccessLogValve.invoke
> (AccessLogValve.java:563)
> [exec] at
> org.apache.catalina.connector.CoyoteAdapter.service
> (CoyoteAdapter.java:261)
> [exec] at
> org.apache.coyote.http11.Http11Processor.process
> (Http11Processor.java:844)
> [exec] at
> org.apache.coyote.http11.Http11Protocol
> $Http11ConnectionHandler.process(Http11Protocol.java:581)
> [exec] at
> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:
> 447)
> [exec] at java.lang.Thread.run(Thread.java:619)
> --
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>