MVEL

Compiler bug while running Drools rule: "Expecting to find integer on stack"

Details

  • Type: Bug Bug
  • Status: Open Open
  • Priority: Major Major
  • Resolution: Unresolved
  • Affects Version/s: None
  • Fix Version/s: None
  • Component/s: None
  • Labels:
  • Environment:
    Drools 5.2.0 final with mvel2-2.1.0.drool2.jar
  • Number of attachments :
    0

Description

Excerpt from application log (DateUtils there is 'org.apache.commons.lang.time.DateUtils'):

        • COMPILER BUG! REPORT THIS IMMEDIATELY AT http://jira.codehaus.org/browse/mvel2
          Expression: DateUtils.addDays(new Date(), -2)
          2011-11-03 17:24:05 JobRunShell [ERROR] Job DEFAULT.XXXXXXXJob threw an unhandled Exception:
          java.lang.VerifyError: (class: ASMAccessorImpl_7529044951320333845290, method: getValue signature: (Ljava/lang/Object;Ljava/lang/Object;Lorg/mvel2/integration/VariableResolverFactory;)Ljava/lang/Object Expecting to find integer on stack
          at java.lang.Class.getDeclaredConstructors0(Native Method)
          at java.lang.Class.privateGetDeclaredConstructors(Class.java:2389)
          at java.lang.Class.getConstructor0(Class.java:2699)
          at java.lang.Class.getConstructor(Class.java:1657)
          at org.mvel2.optimizers.impl.asm.ASMAccessorOptimizer._initializeAccessor(ASMAccessorOptimizer.java:719)
          at org.mvel2.optimizers.impl.asm.ASMAccessorOptimizer.compileAccessor(ASMAccessorOptimizer.java:846)
          at org.mvel2.optimizers.impl.asm.ASMAccessorOptimizer.optimizeAccessor(ASMAccessorOptimizer.java:240)
          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:110)
          at org.mvel2.MVELRuntime.execute(MVELRuntime.java:89)
          at org.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:125)
          at org.mvel2.MVEL.executeExpression(MVEL.java:928)
          at org.drools.base.mvel.MVELReturnValueExpression.evaluate(MVELReturnValueExpression.java:104)
          at org.drools.rule.ReturnValueRestriction.isAllowed(ReturnValueRestriction.java:248)
          at org.drools.rule.VariableConstraint.isAllowed(VariableConstraint.java:107)
          at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:130)
          at org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:59)
          at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:134)
          at org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:59)
          at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:193)
          at org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:191)
          at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:332)
          at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:293)
          at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:905)
          at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:864)
          at org.drools.impl.StatefulKnowledgeSessionImpl.insert(StatefulKnowledgeSessionImpl.java:255)
          ...
          at org.quartz.core.JobRunShell.run(JobRunShell.java:206)
          at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:548)
          org.quartz.SchedulerException: Job threw an unhandled exception. [See nested exception: java.lang.VerifyError: (class: ASMAccessorImpl_7529044951320333845290, method: getValue signature: (Ljava/lang/Object;Ljava/lang/Object;Lorg/mvel2/integration/VariableResolverFactory;)Ljava/lang/Object;) Expecting to find integer on stack]
          at org.quartz.core.JobRunShell.run(JobRunShell.java:217)
          at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:548)
          Caused by: java.lang.VerifyError: (class: ASMAccessorImpl_7529044951320333845290, method: getValue signature: (Ljava/lang/Object;Ljava/lang/Object;Lorg/mvel2/integration/VariableResolverFactory;)Ljava/lang/Object Expecting to find integer on stack
          at java.lang.Class.getDeclaredConstructors0(Native Method)
          at java.lang.Class.privateGetDeclaredConstructors(Class.java:2389)
          at java.lang.Class.getConstructor0(Class.java:2699)
          at java.lang.Class.getConstructor(Class.java:1657)
          at org.mvel2.optimizers.impl.asm.ASMAccessorOptimizer._initializeAccessor(ASMAccessorOptimizer.java:719)
          at org.mvel2.optimizers.impl.asm.ASMAccessorOptimizer.compileAccessor(ASMAccessorOptimizer.java:846)
          at org.mvel2.optimizers.impl.asm.ASMAccessorOptimizer.optimizeAccessor(ASMAccessorOptimizer.java:240)
          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:110)
          at org.mvel2.MVELRuntime.execute(MVELRuntime.java:89)
          at org.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:125)
          at org.mvel2.MVEL.executeExpression(MVEL.java:928)
          at org.drools.base.mvel.MVELReturnValueExpression.evaluate(MVELReturnValueExpression.java:104)
          at org.drools.rule.ReturnValueRestriction.isAllowed(ReturnValueRestriction.java:248)
          at org.drools.rule.VariableConstraint.isAllowed(VariableConstraint.java:107)
          at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:130)
          at org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:59)
          at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:134)
          at org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:59)
          at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:193)
          at org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:191)
          at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:332)
          at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:293)
          at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:905)
          at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:864)
          at org.drools.impl.StatefulKnowledgeSessionImpl.insert(StatefulKnowledgeSessionImpl.java:255)
          ...

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Mike Brock added a comment -

I am going to need a bit more information than this. The stack trace tells me the JVM verifier was upset by MVEL's bytecode but it does not tell me about what the input into MVEL was that led to that bad output. =)

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Mike Brock added a comment - I am going to need a bit more information than this. The stack trace tells me the JVM verifier was upset by MVEL's bytecode but it does not tell me about what the input into MVEL was that led to that bad output. =)

People

  • Assignee:
    Mike Brock
    Reporter:
    Yuriy Ishchuk
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Dates

  • Created:
    Updated: