SmooksAction with XML-to-Java enum mapping may throw an exception under heavy load ---------------------------------------------------------------------------------- Key: JBESB-3961 URL: https://issues.jboss.org/browse/JBESB-3961 Project: JBoss ESB Issue Type: Bug Security Level: Public(Everyone can see) Components: Transformation Service Affects Versions: 4.12 Reporter: Tadayoshi Sato Labels: smooks Attachments: JBESB-3961-reproducer.zip Under heavy load (more that 10 requests per second), SmooksAction sometimes throws an exception like the following. Note that this error may occur only if SmooksAction has the Smooks config of XML-to-Java mapping which involves enum type mapping with default value specified (see attached reproducer project). {code} org.milyn.SmooksException: Unable to filter InputStream for target profile [org.milyn.profile.Profile#default_profile]. at org.milyn.delivery.dom.SmooksDOMFilter.filter(SmooksDOMFilter.java:294) at org.milyn.delivery.dom.SmooksDOMFilter.doFilter(SmooksDOMFilter.java:243) at org.milyn.delivery.dom.SmooksDOMFilter.doFilter(SmooksDOMFilter.java:216) at org.milyn.Smooks._filter(Smooks.java:516) at org.milyn.Smooks.filterSource(Smooks.java:475) at org.milyn.container.plugin.PayloadProcessor.process(PayloadProcessor.java:112) at org.jboss.soa.esb.smooks.SmooksAction.process(SmooksAction.java:217) at org.jboss.soa.esb.listeners.message.ActionProcessingPipeline.processPipeline(ActionProcessingPipeline.java:667) at org.jboss.soa.esb.listeners.message.ActionProcessingPipeline.processPipeline(ActionProcessingPipeline.java:614) at org.jboss.soa.esb.listeners.message.ActionProcessingPipeline.process(ActionProcessingPipeline.java:442) at org.jboss.soa.esb.listeners.message.MessageAwareListener$TransactionalRunner.run(MessageAwareListener.java:587) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:744) Caused by: org.milyn.expression.ExpressionEvaluationException: Error evaluating MVEL expression 'this.type = (com.redhat.samples.esb.model.Type.X);' against object type 'com.redhat.samples.esb.model.Hello'. Common issues include: 1. Referencing a variable that is not bound into the context. In this case use the 'isdef' operator to check if the variable is bound in the context. 2. Invalid expression reference to a List/Array based variable token. Example List/Array referencing expression token: 'order.orderItems[0].productId'. at org.milyn.expression.MVELExpressionEvaluator.exec(MVELExpressionEvaluator.java:110) at org.milyn.expression.MVELExpressionEvaluator.exec(MVELExpressionEvaluator.java:115) at org.milyn.javabean.BeanInstanceCreator.createAndSetBean(BeanInstanceCreator.java:269) at org.milyn.javabean.BeanInstanceCreator.visitBefore(BeanInstanceCreator.java:210) at org.milyn.delivery.dom.SmooksDOMFilter$ElementProcessor.processMapping(SmooksDOMFilter.java:759) at org.milyn.delivery.dom.SmooksDOMFilter$ElementProcessor.process(SmooksDOMFilter.java:710) at org.milyn.delivery.dom.SmooksDOMFilter$ElementProcessor.access$000(SmooksDOMFilter.java:666) at org.milyn.delivery.dom.SmooksDOMFilter.filter(SmooksDOMFilter.java:385) at org.milyn.delivery.dom.SmooksDOMFilter.filter(SmooksDOMFilter.java:317) at org.milyn.delivery.dom.SmooksDOMFilter.filter(SmooksDOMFilter.java:292) ... 13 more Caused by: [Error: value X] [Near : {... this.type = (com.redhat.sample ....}] ^ [Line: 1, Column: 1] at org.mvel2.optimizers.impl.asm.ASMAccessorOptimizer.compileAccessor(ASMAccessorOptimizer.java:883) at org.mvel2.optimizers.impl.asm.ASMAccessorOptimizer.optimizeAccessor(ASMAccessorOptimizer.java:243) at org.mvel2.optimizers.dynamic.DynamicGetAccessor.optimize(DynamicGetAccessor.java:90) at org.mvel2.optimizers.dynamic.DynamicGetAccessor.getValue(DynamicGetAccessor.java:64) at org.mvel2.ast.ASTNode.getReducedValueAccelerated(ASTNode.java:108) at org.mvel2.compiler.ExecutableAccessor.getValue(ExecutableAccessor.java:38) at org.mvel2.ast.Substatement.getReducedValueAccelerated(Substatement.java:44) at org.mvel2.compiler.ExecutableAccessor.getValue(ExecutableAccessor.java:38) at org.mvel2.ast.DeepAssignmentNode.getReducedValueAccelerated(DeepAssignmentNode.java:92) at org.mvel2.MVELRuntime.execute(MVELRuntime.java:85) at org.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:126) at org.mvel2.MVEL.executeExpression(MVEL.java:930) at org.milyn.expression.MVELExpressionEvaluator.exec(MVELExpressionEvaluator.java:99) ... 22 more Caused by: java.lang.IllegalArgumentException: value X at org.mvel2.asm.ClassWriter.newConstItem(ClassWriter.java:906) at org.mvel2.asm.MethodWriter.visitLdcInsn(MethodWriter.java:1014) at org.mvel2.optimizers.impl.asm.ASMAccessorOptimizer.getBeanProperty(ASMAccessorOptimizer.java:1229) at org.mvel2.optimizers.impl.asm.ASMAccessorOptimizer.compileAccessor(ASMAccessorOptimizer.java:758) ... 34 more {code}