Exception thrown by rule is not caught by woven code
flavia.rainone Dec 1, 2010 9:45 PMI wrote a test for JBoss MSC that forces ServiceInstanceImpl to enter the catch RejectedExecutionException block:
void doExecute(final Runnable... tasks) { assert ! lockHeld(); if (tasks == null) return; final Executor executor = primaryRegistration.getContainer().getExecutor(); for (Runnable task : tasks) { try { executor.execute(task); } catch (RejectedExecutionException e) { task.run(); } } }
Here is my rule:
RULE Throw RejectedExecutionException CLASS org.jboss.msc.service.ServiceInstanceImpl METHOD doExecute AT INVOKE java.util.concurrent.Executor.execute BIND NOTHING IF TRUE DO debug("Rejecting execution"), throw new java.util.concurrent.RejectedExecutionException(); ENDRULE
The problem is that the code does not enter the catch block and the tests fail because of the uncaught exception. Here is the trace:
java.util.concurrent.RejectedExecutionException at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at org.jboss.byteman.rule.expression.ThrowExpression.interpret(ThrowExpression.java:242) at org.jboss.byteman.rule.Action.interpret(Action.java:144) at org.jboss.byteman.rule.helper.InterpretedHelper.fire(InterpretedHelper.java:169) at org.jboss.byteman.rule.helper.InterpretedHelper.execute0(InterpretedHelper.java:137) at org.jboss.byteman.rule.helper.InterpretedHelper.execute(InterpretedHelper.java:100) at org.jboss.byteman.rule.Rule.execute(Rule.java:664) at org.jboss.byteman.rule.Rule.execute(Rule.java:633) at org.jboss.msc.service.ServiceInstanceImpl.doExecute(ServiceInstanceImpl.java:392) at org.jboss.msc.service.ServiceInstanceImpl.internalSetMode(ServiceInstanceImpl.java:549) at org.jboss.msc.service.ServiceInstanceImpl.setMode(ServiceInstanceImpl.java:412) at org.jboss.msc.service.ServiceContainerImpl.commit(ServiceContainerImpl.java:433) at org.jboss.msc.service.ServiceContainerImpl.install(ServiceContainerImpl.java:359) at org.jboss.msc.service.ServiceContainerImpl.install(ServiceContainerImpl.java:510) at org.jboss.msc.service.ServiceBuilderImpl.install(ServiceBuilderImpl.java:287) at org.jboss.msc.service.DependencyListenersTestCase.testMissingDependencies(DependencyListenersTestCase.java:59) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28) at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184) at org.junit.runners.ParentRunner.run(ParentRunner.java:236) at org.junit.runners.Suite.runChild(Suite.java:128) at org.junit.runners.Suite.runChild(Suite.java:24) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184) at org.junit.runners.ParentRunner.run(ParentRunner.java:236) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Weird enough, I debugged it and it seems it should work... is there any explanation for this behavior? And, most important, is there a way to make my test work correctly?