Issue Type: Bug Bug
Affects Versions: 4.1.1.Final
Assignee: Unassigned
Attachments: hibernateTest.rar
Created: 06/Feb/13 9:49 AM
Description:

I get the following exception when attempting to perform a FullTextSession.purge() on an indexed entity that is embedded in another indexed entity. 

java.lang.IllegalStateException: Could not get property value
    at org.hibernate.search.util.impl.ReflectionHelper.getMemberValue(ReflectionHelper.java:94)
    at org.hibernate.search.engine.spi.AbstractDocumentBuilder.appendContainedInWorkForInstance(AbstractDocumentBuilder.java:265)
    at org.hibernate.search.engine.impl.WorkPlan$PerEntityWork.processContainedIn(WorkPlan.java:525)
    at org.hibernate.search.engine.impl.WorkPlan$PerClassWork.processContainedInAndPrepareExecution(WorkPlan.java:297)
    at org.hibernate.search.engine.impl.WorkPlan.processContainedInAndPrepareExecution(WorkPlan.java:144)
    at org.hibernate.search.backend.impl.WorkQueue.prepareWorkPlan(WorkQueue.java:135)
    at org.hibernate.search.backend.impl.BatchedQueueingProcessor.prepareWorks(BatchedQueueingProcessor.java:71)
    at org.hibernate.search.backend.impl.PostTransactionWorkQueueSynchronization.flushWorks(PostTransactionWorkQueueSynchronization.java:124)
    at org.hibernate.search.backend.impl.TransactionalWorker.flushWorks(TransactionalWorker.java:179)
    at org.hibernate.search.impl.FullTextSessionImpl.flushToIndexes(FullTextSessionImpl.java:136)
    at test.TU_FullTextSessionPurge.testFullTextSessionPurge(TU_FullTextSessionPurge.java:195)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    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.runNotIgnored(BlockJUnit4ClassRunner.java:79)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)
    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)
Caused by: java.lang.IllegalArgumentException: Invoking relatedEntityBs on a  null object
    at org.hibernate.annotations.common.reflection.java.JavaXProperty.invoke(JavaXProperty.java:81)
    at org.hibernate.search.util.impl.ReflectionHelper.getMemberValue(ReflectionHelper.java:91)
    ... 35 more
Caused by: java.lang.NullPointerException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.hibernate.annotations.common.reflection.java.JavaXProperty.invoke(JavaXProperty.java:74)
    ... 36 more

From what I can tell, the Work object created by .purge() to handle the index deletion is created with a null "entity" value. Later, when the Work is being handled (by flushToIndexes()) the system tries to access the entity class' property annotated with @ContainedIn but the Work's "entity" instance is null so the method invocation fails.

Related forum post: https://forum.hibernate.org/viewtopic.php?f=9&t=1025336&start=0
Project: Hibernate Search
Priority: Major Major
Reporter: John Delzer
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