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http://issues.apache.org/bugzilla/show_bug.cgi?id=29547 can't use singleton classes in Continuable Summary: can't use singleton classes in Continuable Product: Cocoon 2 Version: 2.1.5 Platform: PC OS/Version: Windows XP Status: NEW Severity: Major Priority: Other Component: blocks AssignedTo: [EMAIL PROTECTED] ReportedBy: [EMAIL PROTECTED] When using a singleton class in a continuation the error below occurs. I tried to save the instance of the singleton class in the context and retrieve it in the continuable, but the same error occurs. I tried to work with the latest bcel jar, but this is not compliant with the current javaflow implementation. I use cocoon 2.1.5 (built from source) Tomcat 5.0.18 JDK 1.4.2_04 Message: Instruction INVOKEVIRTUAL constraint violated: Class 'com.mypackage.security.SecurityFactory' is referenced, but cannot be loaded and resolved: 'VERIFIED_REJECTED Number of LocalVariableTable attributes of Code attribute '' (method 'public static com.mypackage.security.SecurityFactory getInstance()') exceeds number of local variable slots '0' ('There may be no more than one LocalVariableTable attribute per local variable in the Code attribute.'). '. InstructionHandle: 33: invokevirtual[182](3) 55 Execution Frame: Local Variables: 0: com.mypackage.cocoon.security.AuthenticationHandler 1: 2: 3: OperandStack: Slots used: 1 MaxStack: 4. com.mypackage.cocoon.ResourceHelper (Size: 1) Execution flow: 0: aload_0 [InstructionContext] 1: getfield 22 [InstructionContext] 4: invokevirtual 31 [InstructionContext] 7: ifne -> 104 [InstructionContext] 10: aload_0 [InstructionContext] 11: invokevirtual 35 [InstructionContext] 14: ldc 37 [InstructionContext] 16: invokeinterface 43 [InstructionContext] 21: ldc 45 [InstructionContext] 23: invokevirtual 51 [InstructionContext] 26: ifeq -> 98 [InstructionContext] 29: aload_0 [InstructionContext] 30: getfield 22 [InstructionContext] 33: invokevirtual 55 [InstructionContext] Description: org.apache.bcel.verifier.exc.StructuralCodeConstraintException: Instruction INVOKEVIRTUAL constraint violated: Class 'com.mypackage.security.SecurityFactory' is referenced, but cannot be loaded and resolved: 'VERIFIED_REJECTED Number of LocalVariableTable attributes of Code attribute '' (method 'public static com.mypackage.security.SecurityFactory getInstance()') exceeds number of local variable slots '0' ('There may be no more than one LocalVariableTable attribute per local variable in the Code attribute.'). '. InstructionHandle: 33: invokevirtual[182](3) 55 Execution Frame: Local Variables: 0: com.mypackage.cocoon.security.AuthenticationHandler 1: 2: 3: OperandStack: Slots used: 1 MaxStack: 4. com.mypackage.cocoon.ResourceHelper (Size: 1) Execution flow: 0: aload_0 [InstructionContext] 1: getfield 22 [InstructionContext] 4: invokevirtual 31 [InstructionContext] 7: ifne -> 104 [InstructionContext] 10: aload_0 [InstructionContext] 11: invokevirtual 35 [InstructionContext] 14: ldc 37 [InstructionContext] 16: invokeinterface 43 [InstructionContext] 21: ldc 45 [InstructionContext] 23: invokevirtual 51 [InstructionContext] 26: ifeq -> 98 [InstructionContext] 29: aload_0 [InstructionContext] 30: getfield 22 [InstructionContext] 33: invokevirtual 55 [InstructionContext] Sender: org.apache.cocoon.servlet.CocoonServlet Source: Cocoon Servlet Request URI edit/general/test cause org.apache.bcel.verifier.exc.StructuralCodeConstraintException: Instruction INVOKEVIRTUAL constraint violated: Class 'com.mypackage.security.SecurityFactory' is referenced, but cannot be loaded and resolved: 'VERIFIED_REJECTED Number of LocalVariableTable attributes of Code attribute '' (method 'public static com.mypackage.security.SecurityFactory getInstance()') exceeds number of local variable slots '0' ('There may be no more than one LocalVariableTable attribute per local variable in the Code attribute.'). '. InstructionHandle: 33: invokevirtual[182](3) 55 Execution Frame: Local Variables: 0: com.mypackage.cocoon.security.AuthenticationHandler 1: 2: 3: OperandStack: Slots used: 1 MaxStack: 4. com.mypackage.cocoon.ResourceHelper (Size: 1) Execution flow: 0: aload_0 [InstructionContext] 1: getfield 22 [InstructionContext] 4: invokevirtual 31 [InstructionContext] 7: ifne -> 104 [InstructionContext] 10: aload_0 [InstructionContext] 11: invokevirtual 35 [InstructionContext] 14: ldc 37 [InstructionContext] 16: invokeinterface 43 [InstructionContext] 21: ldc 45 [InstructionContext] 23: invokevirtual 51 [InstructionContext] 26: ifeq -> 98 [InstructionContext] 29: aload_0 [InstructionContext] 30: getfield 22 [InstructionContext] 33: invokevirtual 55 [InstructionContext] request-uri /edit/general/test stacktrace org.apache.bcel.verifier.exc.StructuralCodeConstraintException: Instruction INVOKEVIRTUAL constraint violated: Class 'com.mypackage.security.SecurityFactory' is referenced, but cannot be loaded and resolved: 'VERIFIED_REJECTED Number of LocalVariableTable attributes of Code attribute '' (method 'public static com.mypackage.security.SecurityFactory getInstance()') exceeds number of local variable slots '0' ('There may be no more than one LocalVariableTable attribute per local variable in the Code attribute.'). '. InstructionHandle: 33: invokevirtual[182](3) 55 Execution Frame: Local Variables: 0: com.mypackage.cocoon.security.AuthenticationHandler 1: 2: 3: OperandStack: Slots used: 1 MaxStack: 4. com.mypackage.cocoon.ResourceHelper (Size: 1) Execution flow: 0: aload_0 [InstructionContext] 1: getfield 22 [InstructionContext] 4: invokevirtual 31 [InstructionContext] 7: ifne -> 104 [InstructionContext] 10: aload_0 [InstructionContext] 11: invokevirtual 35 [InstructionContext] 14: ldc 37 [InstructionContext] 16: invokeinterface 43 [InstructionContext] 21: ldc 45 [InstructionContext] 23: invokevirtual 51 [InstructionContext] 26: ifeq -> 98 [InstructionContext] 29: aload_0 [InstructionContext] 30: getfield 22 [InstructionContext] 33: invokevirtual 55 [InstructionContext] at org.apache.bcel.verifier.structurals.InstConstraintVisitor.constraintViolated (InstConstraintVisitor.java:148) at org.apache.bcel.verifier.structurals.InstConstraintVisitor.visitINVOKEVIRTUAL (InstConstraintVisitor.java:1917) at org.apache.bcel.generic.INVOKEVIRTUAL.accept(INVOKEVIRTUAL.java:110) at org.apache.bcel.generic.InstructionHandle.accept (InstructionHandle.java:282) at org.apache.bcel.verifier.structurals.ControlFlowGraph$InstructionContextImpl.exe cute(ControlFlowGraph.java:229) at org.apache.cocoon.components.flow.java.ContinuationClassLoader.analyse (ContinuationClassLoader.java:234) at org.apache.cocoon.components.flow.java.ContinuationClassLoader.transform (ContinuationClassLoader.java:146) at org.apache.cocoon.components.flow.java.ContinuationClassLoader.loadClass (ContinuationClassLoader.java:114) at java.lang.ClassLoader.loadClass(ClassLoader.java:235) at org.apache.cocoon.components.flow.java.JavaInterpreter.initialize (JavaInterpreter.java:93) at org.apache.cocoon.components.flow.java.JavaInterpreter.callFunction (JavaInterpreter.java:130) at org.apache.cocoon.components.treeprocessor.sitemap.CallFunctionNode.invoke (CallFunctionNode.java:130) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNo des(AbstractParentProcessingNode.java:49) at org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke (PreparableMatchNode.java:130) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNo des(AbstractParentProcessingNode.java:72) at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke (PipelineNode.java:126) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNo des(AbstractParentProcessingNode.java:72) at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke (PipelinesNode.java:101) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process (TreeProcessor.java:336) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process (TreeProcessor.java:277) at org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke (MountNode.java:103) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNo des(AbstractParentProcessingNode.java:49) at org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke (PreparableMatchNode.java:130) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNo des(AbstractParentProcessingNode.java:72) at org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke (PipelineNode.java:126) at org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNo des(AbstractParentProcessingNode.java:72) at org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke (PipelinesNode.java:101) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process (TreeProcessor.java:336) at org.apache.cocoon.components.treeprocessor.TreeProcessor.process (TreeProcessor.java:277) at org.apache.cocoon.Cocoon.process(Cocoon.java:639) at org.apache.cocoon.servlet.CocoonServlet.service (CocoonServlet.java:1098) at javax.servlet.http.HttpServlet.service(HttpServlet.java:856) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter (ApplicationFilterChain.java:284) at org.apache.catalina.core.ApplicationFilterChain.doFilter (ApplicationFilterChain.java:204) at org.apache.catalina.core.StandardWrapperValve.invoke (StandardWrapperValve.java:257) at org.apache.catalina.core.StandardValveContext.invokeNext (StandardValveContext.java:151) at org.apache.catalina.core.StandardPipeline.invoke (StandardPipeline.java:564) at org.apache.catalina.core.StandardContextValve.invokeInternal (StandardContextValve.java:245) at org.apache.catalina.core.StandardContextValve.invoke (StandardContextValve.java:199) at org.apache.catalina.core.StandardValveContext.invokeNext (StandardValveContext.java:151) at org.apache.catalina.core.StandardPipeline.invoke (StandardPipeline.java:564) at org.apache.catalina.core.StandardHostValve.invoke (StandardHostValve.java:195) at org.apache.catalina.core.StandardValveContext.invokeNext (StandardValveContext.java:151) at org.apache.catalina.valves.ErrorReportValve.invoke (ErrorReportValve.java:164) at org.apache.catalina.core.StandardValveContext.invokeNext (StandardValveContext.java:149) at org.apache.catalina.core.StandardPipeline.invoke (StandardPipeline.java:564) at org.apache.catalina.core.StandardEngineValve.invoke (StandardEngineValve.java:156) at org.apache.catalina.core.StandardValveContext.invokeNext (StandardValveContext.java:151) at org.apache.catalina.core.StandardPipeline.invoke (StandardPipeline.java:564) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:972) at org.apache.coyote.tomcat5.CoyoteAdapter.service (CoyoteAdapter.java:206) at org.apache.coyote.http11.Http11Processor.process (Http11Processor.java:828) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnectio n(Http11Protocol.java:700) at org.apache.tomcat.util.net.TcpWorkerThread.runIt (PoolTcpEndpoint.java:584) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run (ThreadPool.java:683) at java.lang.Thread.run(Thread.java:534)
