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[Hibernate-issues] [Hibernate-JIRA] Created: (HHH-1365) NPE AbstractEntityTuplizer.createProxy(AbstractEntityTuplizer.java:372) when trying to load a class defined in a signed/sealed JAR
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From: Steve L. (JIRA) <no...@at...> - 2006-01-16 09:00:38
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NPE AbstractEntityTuplizer.createProxy(AbstractEntityTuplizer.java:372) when trying to load a class defined in a signed/sealed JAR
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Key: HHH-1365
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1365
Project: Hibernate3
Type: Bug
Versions: 3.1
Environment: Java1.5.06 Ant1.7alpha, hibernate 3.1
Reporter: Steve Loughran
Priority: Minor
I'm testing what happens to hibernate when running against a signed JAR. The answer is: most tests pass. What fails is this test (Apache 2.0 license, BTW)
public void testDetachedObject() throws Exception {
Event event = createTestEvent();
session.save(event);
session.flush();
closeSession();
//here the event is detached.
//we change it outside an operation.
String text = "modified";
event.setText(text);
session = getSessionFactory().openSession();
Event merged=(Event) session.merge(event);
assertEquals(event, merged);
session.flush();
closeSession();
session = getSessionFactory().openSession();
Event loaded = (Event) session.load(Event.class, event.getKey());
assertEquals(text, loaded.getText());
assertEquals(event, loaded);
}
the session.load operation is failing, with the short stack trace of:
java.lang.NullPointerException
at org.hibernate.tuple.AbstractEntityTuplizer.createProxy(AbstractEntityTuplizer.java:372)
at org.hibernate.persister.entity.AbstractEntityPersister.createProxy(AbstractEntityPersister.java:3121)
at org.hibernate.event.def.DefaultLoadEventListener.createProxyIfNecessary(DefaultLoadEventListener.java:232)
at org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:173)
at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:87)
at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:869)
at org.hibernate.impl.SessionImpl.load(SessionImpl.java:788)
at org.hibernate.impl.SessionImpl.load(SessionImpl.java:781)
at d1.persist.test.SessionTest.testDetachedObject(SessionTest.java:155)
The root cause is probably contained in the info that gets printed when the session starts up, complaining that things cant be added to sealed classes
[junit] 2261 ERROR org.hibernate.proxy.BasicLazyInitializer - CGLIB Enhancement failed: d1.persist.Event
[junit] net.sf.cglib.core.CodeGenerationException: java.lang.reflect.InvocationTargetException-->null
[junit] at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:237)
[junit] at net.sf.cglib.proxy.Enhancer.createHelper(Enhancer.java:377)
[junit] at net.sf.cglib.proxy.Enhancer.createClass(Enhancer.java:317)
[junit] at org.hibernate.proxy.CGLIBLazyInitializer.getProxyFactory(CGLIBLazyInitializer.java:126)
[junit] at org.hibernate.proxy.CGLIBProxyFactory.postInstantiate(CGLIBProxyFactory.java:41)
[junit] at org.hibernate.tuple.PojoEntityTuplizer.buildProxyFactory(PojoEntityTuplizer.java:161)
[junit] at org.hibernate.tuple.AbstractEntityTuplizer.<init>(AbstractEntityTuplizer.java:131)
[junit] at org.hibernate.tuple.PojoEntityTuplizer.<init>(PojoEntityTuplizer.java:55)
[junit] at org.hibernate.tuple.TuplizerLookup.create(TuplizerLookup.java:64)
[junit] at org.hibernate.tuple.EntityMetamodel.<init>(EntityMetamodel.java:257)
[junit] at org.hibernate.persister.entity.AbstractEntityPersister.<init>(AbstractEntityPersister.java:412)
[junit] at org.hibernate.persister.entity.SingleTableEntityPersister.<init>(SingleTableEntityPersister.java:108)
[junit] at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:55)
[junit] at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:215)
[junit] at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1154)
[junit] at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:375)
[junit] at org.hibernate.ejb.Ejb3Configuration.createEntityManagerFactory(Ejb3Configuration.java:533)
[junit] at org.hibernate.ejb.Ejb3Configuration.createFactory(Ejb3Configuration.java:109)
[junit] at org.hibernate.ejb.Ejb3Configuration.createEntityManagerFactory(Ejb3Configuration.java:155)
[junit] at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:82)
[junit] at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:37)
[junit] at d1.persist.PersistTools.createManagerFactory(PersistTools.java:82)
[junit] at d1.persist.PersistTools.createDefaultManagerFactory(PersistTools.java:76)
[junit] at d1.persist.test.Ejb3TestBase.setUp(Ejb3TestBase.java:27)
[junit] at junit.framework.TestCase.runBare(TestCase.java:125)
[junit] at junit.framework.TestResult$1.protect(TestResult.java:106)
[junit] at junit.framework.TestResult.runProtected(TestResult.java:124)
[junit] at junit.framework.TestResult.run(TestResult.java:109)
[junit] at junit.framework.TestCase.run(TestCase.java:118)
[junit] at junit.framework.TestSuite.runTest(TestSuite.java:208)
[junit] at junit.framework.TestSuite.run(TestSuite.java:203)
[junit] at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:328)
[junit] at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:736)
[junit] at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:605)
[junit] Caused by: java.lang.reflect.InvocationTargetException
[junit] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[junit] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[junit] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[junit] at java.lang.reflect.Method.invoke(Method.java:585)
[junit] at net.sf.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:384)
[junit] at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:219)
[junit] ... 33 more
[junit] Caused by: java.lang.SecurityException: class "d1.persist.Event$$EnhancerByCGLIB$$55c8eae8_2"'s signer information does not match signer information of other classes in the same package
[junit] at java.lang.ClassLoader.checkCerts(ClassLoader.java:775)
[junit] at java.lang.ClassLoader.preDefineClass(ClassLoader.java:487)
[junit] at java.lang.ClassLoader.defineClass(ClassLoader.java:614)
[junit] ... 39 more
[junit] 2262 WARN org.hibernate.tuple.PojoEntityTuplizer - could not create proxy factory for:d1.persist.Event
[junit] org.hibernate.HibernateException: CGLIB Enhancement failed: d1.persist.Event
[junit] at org.hibernate.proxy.CGLIBLazyInitializer.getProxyFactory(CGLIBLazyInitializer.java:132)
[junit] at org.hibernate.proxy.CGLIBProxyFactory.postInstantiate(CGLIBProxyFactory.java:41)
[junit] at org.hibernate.tuple.PojoEntityTuplizer.buildProxyFactory(PojoEntityTuplizer.java:161)
[junit] at org.hibernate.tuple.AbstractEntityTuplizer.<init>(AbstractEntityTuplizer.java:131)
[junit] at org.hibernate.tuple.PojoEntityTuplizer.<init>(PojoEntityTuplizer.java:55)
[junit] at org.hibernate.tuple.TuplizerLookup.create(TuplizerLookup.java:64)
[junit] at org.hibernate.tuple.EntityMetamodel.<init>(EntityMetamodel.java:257)
[junit] at org.hibernate.persister.entity.AbstractEntityPersister.<init>(AbstractEntityPersister.java:412)
[junit] at org.hibernate.persister.entity.SingleTableEntityPersister.<init>(SingleTableEntityPersister.java:108)
[junit] at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:55)
[junit] at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:215)
[junit] at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1154)
[junit] at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:375)
[junit] at org.hibernate.ejb.Ejb3Configuration.createEntityManagerFactory(Ejb3Configuration.java:533)
[junit] at org.hibernate.ejb.Ejb3Configuration.createFactory(Ejb3Configuration.java:109)
[junit] at org.hibernate.ejb.Ejb3Configuration.createEntityManagerFactory(Ejb3Configuration.java:155)
[junit] at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:82)
[junit] at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:37)
[junit] at d1.persist.PersistTools.createManagerFactory(PersistTools.java:82)
[junit] at d1.persist.PersistTools.createDefaultManagerFactory(PersistTools.java:76)
[junit] at d1.persist.test.Ejb3TestBase.setUp(Ejb3TestBase.java:27)
[junit] at junit.framework.TestCase.runBare(TestCase.java:125)
[junit] at junit.framework.TestResult$1.protect(TestResult.java:106)
[junit] at junit.framework.TestResult.runProtected(TestResult.java:124)
[junit] at junit.framework.TestResult.run(TestResult.java:109)
[junit] at junit.framework.TestCase.run(TestCase.java:118)
[junit] at junit.framework.TestSuite.runTest(TestSuite.java:208)
[junit] at junit.framework.TestSuite.run(TestSuite.java:203)
[junit] at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:328)
[junit] at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:736)
[junit] at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:605)
[junit] Caused by: net.sf.cglib.core.CodeGenerationException: java.lang.reflect.InvocationTargetException-->null
[junit] at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:237)
[junit] at net.sf.cglib.proxy.Enhancer.createHelper(Enhancer.java:377)
[junit] at net.sf.cglib.proxy.Enhancer.createClass(Enhancer.java:317)
[junit] at org.hibernate.proxy.CGLIBLazyInitializer.getProxyFactory(CGLIBLazyInitializer.java:126)
[junit] ... 30 more
[junit] Caused by: java.lang.reflect.InvocationTargetException
[junit] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[junit] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[junit] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[junit] at java.lang.reflect.Method.invoke(Method.java:585)
[junit] at net.sf.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:384)
[junit] at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:219)
[junit] ... 33 more
[junit] Caused by: java.lang.SecurityException: class "d1.persist.Event$$EnhancerByCGLIB$$55c8eae8_2"'s signer information does not match signer information of other classes in the same package
[junit] at java.lang.ClassLoader.checkCerts(ClassLoader.java:775)
[junit] at java.lang.ClassLoader.preDefineClass(ClassLoader.java:487)
[junit] at java.lang.ClassLoader.defineClass(ClassLoader.java:614)
[junit] ... 39 more
No doubt there is some way to configure hibernate to create proxies in a different package, and I shall seek that option out. All I want to note here is that NPEs are not the best way to report failure.
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