I'm using aspectj 1.8.13 LTW'ing with Wildfly 10. Generally speaking,
everything is working as expected. However, I have recently added in a new
Pointcut which is causing core dumps by the weaver:
2018-11-15 14:56:30,033 SEVERE [org.aspectj.weaver.loadtime.Aj]
izone/adams/model/messaging/SMSMessageAbstract:
java.lang.IllegalStateException: Unexpected problem whilst preparing
bytecode for model.messaging.SMSMessa
geAbstract.pcNewInstance(Lorg/apache/openjpa/enhance/StateManager;Ljava/lang/Object;Z)Lorg/apache/openjpa/enhance/PersistenceCapable;
at
org.aspectj.apache.bcel.generic.MethodGen.getMethod(MethodGen.java:699)
at
org.aspectj.weaver.bcel.LazyMethodGen.getMethod(LazyMethodGen.java:498)
at
org.aspectj.weaver.bcel.LazyClassGen.writeBack(LazyClassGen.java:515)
at
org.aspectj.weaver.bcel.LazyClassGen.getJavaClassBytesIncludingReweavable(LazyClassGen.java:697)
at
org.aspectj.weaver.bcel.BcelWeaver.getClassFilesFor(BcelWeaver.java:1443)
at
org.aspectj.weaver.bcel.BcelWeaver.weaveAndNotify(BcelWeaver.java:1405)
at org.aspectj.weaver.bcel.BcelWeaver.weave(BcelWeaver.java:1183)
at
org.aspectj.weaver.tools.WeavingAdaptor.getWovenBytes(WeavingAdaptor.java:527)
at
org.aspectj.weaver.tools.WeavingAdaptor.weaveClass(WeavingAdaptor.java:363)
at org.aspectj.weaver.loadtime.Aj.preProcess(Aj.java:121)
at
org.aspectj.weaver.loadtime.ClassPreProcessorAgentAdapter.transform(ClassPreProcessorAgentAdapter.java:54)
...
...
at
org.jboss.as.server.deployment.reflect.DeploymentReflectionIndex.jrGetDeclaredMethods(DeploymentReflectionIndex.java:46001)
at
org.jboss.as.server.deployment.reflect.ClassReflectionIndex.<init>(ClassReflectionIndex.java:80)
at
org.jboss.as.server.deployment.reflect.DeploymentReflectionIndex.getClassIndex(DeploymentReflectionIndex.java:66)
at
org.jboss.as.ee.metadata.MethodAnnotationAggregator.runtimeAnnotationInformation(MethodAnnotationAggregator.java:57)
at
org.jboss.as.ee.component.deployers.InterceptorAnnotationProcessor.handleAnnotations(InterceptorAnnotationProcessor.java:106)
at
org.jboss.as.ee.component.deployers.InterceptorAnnotationProcessor.processComponentConfig(InterceptorAnnotationProcessor.java:91)
at
org.jboss.as.ee.component.deployers.InterceptorAnnotationProcessor.deploy(InterceptorAnnotationProcessor.java:76)
at
org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:165)
at
org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:2032)
at
org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1955)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException
at
org.aspectj.apache.bcel.generic.InstructionList.setPositions(InstructionList.java:892)
at
org.aspectj.apache.bcel.generic.InstructionList.setPositions(InstructionList.java:863)
at
org.aspectj.apache.bcel.generic.InstructionList.getByteCode(InstructionList.java:981)
at
org.aspectj.apache.bcel.generic.MethodGen.getMethod(MethodGen.java:697)
I've traced it down to my new cflow pointcut which targets a method in
classes implementating a specific interface, but the weaver throws the
exception if it tries to weave an abstract class implementing this
interface.
My pointcut:
/**
* Execution of any pcClearFields() methods within a newInstance as injected
by Kodo Enhancer
*/
@Pointcut("cflow(execution(*
org.apache.openjpa.enhance.PersistenceCapable+.pcNewInstance(..))) &&
execution(*
org.apache.openjpa.enhance.PersistenceCapable+.pcClearFields(..))")
public void kodoNewObject(){}
The weaver fails whenever it encounters an abstract class implementing
PersistenceCabaple without the pcNewInstance() method.
I'm not sure how to handle this. There is no functional failure with the
LTW failing as a non-abstract class gets properly woven. However, my logs
get polluted everytime the weaver tries to weave a such class and generates
a new ajcore.<timestamp>.txt file everytime which will quickly fill my
directory.
AspectJ LTW is being used with LTW enabled (<weaver options="-Xlint:ignore
-Xset:overWeaving=true" >).
Given that I'm running the latest of the 1.8 branch, is there a way I can
simply tell me pointcut to not target abstract classes? Is this even
feasible?
Thanks,
Eric
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