[OPENJPA-1020] eager fetching of PersistentCollection of a primitive type fails

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.2.1, 2.0.0-M2
• Fix Version/s: 2.0.0-beta
• Component/s: jdbc

Environment

Linux deltoid-r61 2.6.27.12-170.2.5.fc10.i686 #1 SMP Wed Jan 21 02:09:37 EST 2009 i686 i686 i386 GNU/Linux
java version "1.6.0_12"
Java(TM) SE Runtime Environment (build 1.6.0_12-b04)
Java HotSpot(TM) Server VM (build 11.2-b01, mixed mode)

• Assignee: Tim McConnell
• Reporter: Ted Leung
• Created: 03/Apr/09 17:18
• Updated: 09/Mar/10 18:31
• Resolved: 09/Mar/10 14:36

Description

When a PersistentCollection of primitives like String.class are persisted, if the collection is marked as eager fetching. An exception is thrown upon loading the collection :

Attached is a patch file to the 2.0.0 trunk's junit test which illustrates the collection working with lazy and failing with eager. This also happens in 1.2.1

Exception below:
--------------------

junit.framework.AssertionFailedError: java.lang.String cannot be cast to org.apache.openjpa.enhance.PersistenceCapable
at junit.framework.Assert.fail(Assert.java:47)
at org.apache.openjpa.persistence.annotations.TestPersistentCollection.testPersistentCollectionStringsEager(TestPersistentCollection.java:169)
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 junit.framework.TestCase.runTest(TestCase.java:154)
at junit.framework.TestCase.runBare(TestCase.java:127)
at org.apache.openjpa.persistence.test.PersistenceTestCase.runBare(PersistenceTestCase.java:455)
at junit.framework.TestResult$1.protect(TestResult.java:106)
at junit.framework.TestResult.runProtected(TestResult.java:124)
at junit.framework.TestResult.run(TestResult.java:109)
at junit.framework.TestCase.run(TestCase.java:118)
at org.apache.openjpa.persistence.test.PersistenceTestCase.run(PersistenceTestCase.java:182)
at junit.framework.TestSuite.runTest(TestSuite.java:208)
at junit.framework.TestSuite.run(TestSuite.java:203)
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.apache.maven.surefire.junit.JUnitTestSet.execute(JUnitTestSet.java:213)
at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.executeTestSet(AbstractDirectoryTestSuite.java:140)
at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.execute(AbstractDirectoryTestSuite.java:127)
at org.apache.maven.surefire.Surefire.run(Surefire.java:177)
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.apache.maven.surefire.booter.SurefireBooter.runSuitesInProcess(SurefireBooter.java:334)
at org.apache.maven.surefire.booter.SurefireBooter.main(SurefireBooter.java:980)