Hi,<br>   I&#39;ve a drools application running on drools 5.4 cr1. It was working fine until I migrated to 5.4 final. Now When I try to get the StatefulKnowledgeSession from the Guvnor(5.4 final) I get the following exception<br>

<br>17:04:55,763 ERROR [stderr] (http--127.0.0.1-8380-2) java.lang.RuntimeException: KnowledgeAgent exception while trying to deserialize KnowledgeDefinitionsPackage  <br><br>17:04:55,767 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.drools.agent.impl.KnowledgeAgentImpl.createPackageFromResource(KnowledgeAgentImpl.java:776)<br>

<br>17:04:55,771 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.drools.agent.impl.KnowledgeAgentImpl.incrementalBuildResources(KnowledgeAgentImpl.java:955)<br><br>17:04:55,774 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.drools.agent.impl.KnowledgeAgentImpl.buildKnowledgeBase(KnowledgeAgentImpl.java:675)<br>

<br>17:04:55,778 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:203)<br><br>17:04:55,781 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:182)<br>

<br>17:04:55,784 ERROR [stderr] (http--127.0.0.1-8380-2)     at mattelli.re.ComplianceEngine.readKnowledgeBase(ComplianceEngine.java:2393)<br><br>17:04:55,787 ERROR [stderr] (http--127.0.0.1-8380-2)     at mattelli.re.ComplianceEngine.ComplianceRunService(ComplianceEngine.java:133)<br>

<br>17:04:55,790 ERROR [stderr] (http--127.0.0.1-8380-2)     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)<br><br>17:04:55,792 ERROR [stderr] (http--127.0.0.1-8380-2)     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)<br>

<br>17:04:55,795 ERROR [stderr] (http--127.0.0.1-8380-2)     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)<br><br>17:04:55,798 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.lang.reflect.Method.invoke(Method.java:597)<br>

<br>17:04:55,801 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.jboss.ws.common.invocation.AbstractInvocationHandlerJSE.invoke(AbstractInvocationHandlerJSE.java:111)<br><br>17:04:55,805 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.jboss.wsf.stack.cxf.JBossWSInvoker._invokeInternal(JBossWSInvoker.java:181)<br>

<br>17:04:55,808 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.jboss.wsf.stack.cxf.JBossWSInvoker.invoke(JBossWSInvoker.java:127)<br><br>17:04:55,811 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.apache.cxf.interceptor.ServiceInvokerInterceptor$1.run(ServiceInvokerInterceptor.java:58)<br>

<br>17:04:55,815 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)<br><br>17:04:55,818 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)<br>

<br>17:04:55,821 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.util.concurrent.FutureTask.run(FutureTask.java:138)<br><br>17:04:55,823 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.apache.cxf.workqueue.SynchronousExecutor.execute(SynchronousExecutor.java:37)<br>

<br>17:04:55,826 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.apache.cxf.interceptor.ServiceInvokerInterceptor.handleMessage(ServiceInvokerInterceptor.java:106)<br><br>17:04:55,830 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:263)<br>

<br>17:04:55,833 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:121)<br><br>17:04:55,836 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:207)<br>

<br>17:04:55,839 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.jboss.wsf.stack.cxf.RequestHandlerImpl.handleHttpRequest(RequestHandlerImpl.java:91)<br><br>17:04:55,842 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.jboss.wsf.stack.cxf.transport.ServletHelper.callRequestHandler(ServletHelper.java:169)<br>

<br>17:04:55,845 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.jboss.wsf.stack.cxf.CXFServletExt.invoke(CXFServletExt.java:87)<br><br>17:04:55,848 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:185)<br>

<br>17:04:55,851 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.apache.cxf.transport.servlet.AbstractHTTPServlet.doPost(AbstractHTTPServlet.java:108)<br><br>17:04:55,855 ERROR [stderr] (http--127.0.0.1-8380-2)     at javax.servlet.http.HttpServlet.service(HttpServlet.java:754)<br>

<br>17:04:55,857 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.jboss.wsf.stack.cxf.CXFServletExt.service(CXFServletExt.java:135)<br><br>17:04:55,860 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.jboss.wsf.spi.deployment.WSFServlet.service(WSFServlet.java:140)<br>

<br>17:04:55,862 ERROR [stderr] (http--127.0.0.1-8380-2)     at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)<br><br>17:04:55,865 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329)<br>

<br>17:04:55,868 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248)<br><br>17:04:55,871 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275)<br>

<br>17:04:55,874 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)<br><br>17:04:55,877 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153)<br>

<br>17:04:55,880 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155)<br><br>17:04:55,883 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)<br>

<br>17:04:55,887 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)<br><br>17:04:55,890 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368)<br>

<br>17:04:55,893 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877)<br><br>17:04:55,895 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671)<br>

<br>17:04:55,899 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930)<br><br>17:04:55,901 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.lang.Thread.run(Thread.java:662)<br>

<br>17:04:55,904 ERROR [stderr] (http--127.0.0.1-8380-2) Caused by: java.io.EOFException<br><br>17:04:55,906 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream$BlockDataInputStream.readBoolean(ObjectInputStream.java:2713)<br>

<br>17:04:55,909 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readBoolean(ObjectInputStream.java:883)<br><br>17:04:55,911 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.drools.base.mvel.MVELCompilationUnit.readExternal(MVELCompilationUnit.java:199)<br>

<br>17:04:55,914 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1791)<br><br>17:04:55,917 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1750)<br>

<br>17:04:55,919 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)<br><br>17:04:55,922 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)<br>

<br>17:04:55,924 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.drools.rule.constraint.MvelConstraint.readExternal(MvelConstraint.java:398)<br><br>17:04:55,927 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1791)<br>

<br>17:04:55,931 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1750)<br><br>17:04:55,933 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)<br>

<br>17:04:55,936 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)<br><br>17:04:55,938 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.util.ArrayList.readObject(ArrayList.java:593)<br>

<br>17:04:55,940 ERROR [stderr] (http--127.0.0.1-8380-2)     at sun.reflect.GeneratedMethodAccessor73.invoke(Unknown Source)<br><br>17:04:55,943 ERROR [stderr] (http--127.0.0.1-8380-2)     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)<br>

<br>17:04:55,945 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.lang.reflect.Method.invoke(Method.java:597)<br><br>17:04:55,947 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:969)<br>

<br>17:04:55,950 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)<br><br>17:04:55,953 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752)<br>

<br>17:04:55,956 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)<br><br>17:04:55,959 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)<br>

<br>17:04:55,962 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.drools.rule.Pattern.readExternal(Pattern.java:111)<br><br>17:04:55,964 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1791)<br>

<br>17:04:55,968 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1750)<br><br>17:04:55,971 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)<br>

<br>17:04:55,973 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)<br><br>17:04:55,976 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.util.ArrayList.readObject(ArrayList.java:593)<br>

<br>17:04:55,978 ERROR [stderr] (http--127.0.0.1-8380-2)     at sun.reflect.GeneratedMethodAccessor73.invoke(Unknown Source)<br><br>17:04:55,980 ERROR [stderr] (http--127.0.0.1-8380-2)     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)<br>

<br>17:04:55,983 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.lang.reflect.Method.invoke(Method.java:597)<br><br>17:04:55,986 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:969)<br>

<br>17:04:55,989 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)<br><br>17:04:55,992 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752)<br>

<br>17:04:55,994 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)<br><br>17:04:55,997 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)<br>

<br>17:04:55,999 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.drools.rule.GroupElement.readExternal(GroupElement.java:63)<br><br>17:04:56,002 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1791)<br>

<br>17:04:56,004 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1750)<br><br>17:04:56,007 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)<br>

<br>17:04:56,010 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)<br><br>17:04:56,012 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.drools.rule.Rule.readExternal(Rule.java:181)<br>

<br>17:04:56,014 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1791)<br><br>17:04:56,017 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1750)<br>

<br>17:04:56,020 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)<br><br>17:04:56,023 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)<br>

<br>17:04:56,026 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.util.IdentityHashMap.readObject(IdentityHashMap.java:1188)<br><br>17:04:56,029 ERROR [stderr] (http--127.0.0.1-8380-2)     at sun.reflect.GeneratedMethodAccessor75.invoke(Unknown Source)<br>

<br>17:04:56,031 ERROR [stderr] (http--127.0.0.1-8380-2)     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)<br><br>17:04:56,035 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.lang.reflect.Method.invoke(Method.java:597)<br>

<br>17:04:56,038 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:969)<br><br>17:04:56,042 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)<br>

<br>17:04:56,045 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752)<br><br>17:04:56,050 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)<br>

<br>17:04:56,052 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)<br><br>17:04:56,054 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.drools.rule.MVELDialectRuntimeData.readExternal(MVELDialectRuntimeData.java:88)<br>

<br>17:04:56,058 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1791)<br><br>17:04:56,061 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1750)<br>

<br>17:04:56,065 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)<br><br>17:04:56,068 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)<br>

<br>17:04:56,070 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.util.HashMap.readObject(HashMap.java:1030)<br><br>17:04:56,073 ERROR [stderr] (http--127.0.0.1-8380-2)     at sun.reflect.GeneratedMethodAccessor72.invoke(Unknown Source)<br>

<br>17:04:56,076 ERROR [stderr] (http--127.0.0.1-8380-2)     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)<br><br>17:04:56,081 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.lang.reflect.Method.invoke(Method.java:597)<br>

<br>17:04:56,084 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:969)<br><br>17:04:56,088 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)<br>

<br>17:04:56,091 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752)<br><br>17:04:56,094 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)<br>

<br>17:04:56,097 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)<br><br>17:04:56,102 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.drools.rule.DialectRuntimeRegistry.readExternal(DialectRuntimeRegistry.java:59)<br>

<br>17:04:56,105 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1791)<br><br>17:04:56,109 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1750)<br>

<br>17:04:56,113 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)<br><br>17:04:56,118 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)<br>

<br>17:04:56,122 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.drools.rule.Package.readExternal(Package.java:208)<br><br>17:04:56,125 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1791)<br>

<br>17:04:56,128 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1750)<br><br>17:04:56,131 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)<br>

<br>17:04:56,134 ERROR [stderr] (http--127.0.0.1-8380-2)     at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)<br><br>17:04:56,137 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.drools.core.util.DroolsStreamUtils.streamIn(DroolsStreamUtils.java:205)<br>

<br>17:04:56,141 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.drools.core.util.DroolsStreamUtils.streamIn(DroolsStreamUtils.java:174)<br><br>17:04:56,145 ERROR [stderr] (http--127.0.0.1-8380-2)     at org.drools.agent.impl.KnowledgeAgentImpl.createPackageFromResource(KnowledgeAgentImpl.java:749)<br>

<br>17:04:56,149 ERROR [stderr] (http--127.0.0.1-8380-2)     ... 44 more<br><br>17:04:56,152 ERROR [org.drools.guvnor.server.files.PackageDeploymentServlet] (http--127.0.0.1-8380-3) null: ClientAbortException:  java.net.SocketException: Software caused connection abort: socket write error<br>

    at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:403) [jbossweb-7.0.13.Final.jar:]<br>    at org.apache.tomcat.util.buf.ByteChunk.append(ByteChunk.java:354) [jbossweb-7.0.13.Final.jar:]<br>

    at org.apache.catalina.connector.OutputBuffer.writeBytes(OutputBuffer.java:426) [jbossweb-7.0.13.Final.jar:]<br>    at org.apache.catalina.connector.OutputBuffer.write(OutputBuffer.java:415) [jbossweb-7.0.13.Final.jar:]<br>

    at org.apache.catalina.connector.CoyoteOutputStream.write(CoyoteOutputStream.java:89) [jbossweb-7.0.13.Final.jar:]<br>    at org.apache.catalina.connector.CoyoteOutputStream.write(CoyoteOutputStream.java:83) [jbossweb-7.0.13.Final.jar:]<br>

    at org.drools.guvnor.server.files.PackageDeploymentServlet$1.execute(PackageDeploymentServlet.java:272) [guvnor-webapp-core-5.4.0.Final.jar:5.4.0.Final]<br>    at org.drools.guvnor.server.files.RepositoryServlet.doAuthorizedAction(RepositoryServlet.java:58) [guvnor-webapp-core-5.4.0.Final.jar:5.4.0.Final]<br>

    at org.drools.guvnor.server.files.PackageDeploymentServlet.doGet(PackageDeploymentServlet.java:139) [guvnor-webapp-core-5.4.0.Final.jar:5.4.0.Final]<br>    at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]<br>

    at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]<br>    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) [jbossweb-7.0.13.Final.jar:]<br>

    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:]<br>    at org.jboss.weld.servlet.ConversationPropagationFilter.doFilter(ConversationPropagationFilter.java:62) [weld-core-1.1.5.AS71.Final.jar:2012-02-10 15:31]<br>

    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.13.Final.jar:]<br>    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:]<br>

    at org.jboss.solder.servlet.exception.CatchExceptionFilter.doFilter(CatchExceptionFilter.java:65) [solder-impl-3.1.1.Final.jar:3.1.1.Final]<br>    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.13.Final.jar:]<br>

    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:]<br>    at org.jboss.solder.servlet.event.ServletEventBridgeFilter.doFilter(ServletEventBridgeFilter.java:74) [solder-impl-3.1.1.Final.jar:3.1.1.Final]<br>

    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.13.Final.jar:]<br>    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:]<br>

    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.13.Final.jar:]<br>    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.13.Final.jar:]<br>

    at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153) [jboss-as-web-7.1.1.Final.jar:7.1.1.Final]<br>    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.13.Final.jar:]<br>

    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.13.Final.jar:]<br>    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.13.Final.jar:]<br>

    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368) [jbossweb-7.0.13.Final.jar:]<br>    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.13.Final.jar:]<br>

    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671) [jbossweb-7.0.13.Final.jar:]<br>    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930) [jbossweb-7.0.13.Final.jar:]<br>

    at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_31]<br>Caused by: java.net.SocketException: Software caused connection abort: socket write error<br>    at java.net.SocketOutputStream.socketWrite0(Native Method) [rt.jar:1.6.0_31]<br>

    at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92) [rt.jar:1.6.0_31]<br>    at java.net.SocketOutputStream.write(SocketOutputStream.java:136) [rt.jar:1.6.0_31]<br>    at org.apache.coyote.http11.InternalOutputBuffer.realWriteBytes(InternalOutputBuffer.java:724) [jbossweb-7.0.13.Final.jar:]<br>

    at org.apache.tomcat.util.buf.ByteChunk.flushBuffer(ByteChunk.java:449) [jbossweb-7.0.13.Final.jar:]<br>    at org.apache.tomcat.util.buf.ByteChunk.append(ByteChunk.java:349) [jbossweb-7.0.13.Final.jar:]<br>    at org.apache.coyote.http11.InternalOutputBuffer$OutputStreamOutputBuffer.doWrite(InternalOutputBuffer.java:748) [jbossweb-7.0.13.Final.jar:]<br>

    at org.apache.coyote.http11.filters.IdentityOutputFilter.doWrite(IdentityOutputFilter.java:118) [jbossweb-7.0.13.Final.jar:]<br>    at org.apache.coyote.http11.InternalOutputBuffer.doWrite(InternalOutputBuffer.java:559) [jbossweb-7.0.13.Final.jar:]<br>

    at org.apache.coyote.Response.doWrite(Response.java:594) [jbossweb-7.0.13.Final.jar:]<br>    at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:398) [jbossweb-7.0.13.Final.jar:]<br>    ... 32 more<br>

<br>However, when I replace the drools-core-5.4 final jar with drools-core-5.4-CR1 jar (just the one jar, leaving the remaining jars as it is) everything works fine again. Any idea If I&#39;m missing something here?<br>I&#39;m using <br>

1&gt;  Drools-guvnor 5.4 final<br>2&gt; Drools Expert 5.4 Final<br>3&gt; jbpm 5.3 final<br><br>Any help is much appreciated.Thanks in Advance.<br clear="all"><br>-- <br>cheers<br>Sumatheja Dasararaju<br><br><br>