NPE at
org.apache.openjpa.jdbc.meta.MappingInfo.mergeJoinColumn(MappingInfo.java:1400)
---------------------------------------------------------------------------------------
Key: OPENJPA-1141
URL: https://issues.apache.org/jira/browse/OPENJPA-1141
Project: OpenJPA
Issue Type: Bug
Components: jdbc
Affects Versions: 1.2.0
Reporter: Yann
Fix For: 1.2.2
Attachments: TestMappingProblem.zip
We have the NPE shown below in a reproducible testcase (ZIP attached to JIRA
...).
We've reduced our complex intended target domain model (about 200+ Entities) to
a simpler model with only 3 classes which illustrate the problem: You'll find
attached a test project with a first entity which has a a OneToMany (with an
ElementJoinColumns, but that shouldn't matter?) to a second entity has a
ManyToOne to a third entity. The middle entity has a Composite ID Class
including a ManyToOne as a key, which according to
http://openjpa.apache.org/builds/1.2.0/apache-openjpa-1.2.0/docs/manual/ref_guide_pc_oid.html#ref_guide_pc_oid_entitypk
is supported, so this seems a bug in OpenJPA's mapping algos, somehow?
<openjpa-1.2.1-r752877:753278 nonfatal general error>
org.apache.openjpa.persistence.PersistenceException: null
at
org.apache.openjpa.kernel.QueryImpl.compileForCompilation(QueryImpl.java:610)
at
org.apache.openjpa.kernel.QueryImpl.compileForExecutor(QueryImpl.java:667)
at org.apache.openjpa.kernel.QueryImpl.getOperation(QueryImpl.java:1492)
at
org.apache.openjpa.kernel.DelegatingQuery.getOperation(DelegatingQuery.java:123)
at org.apache.openjpa.persistence.QueryImpl.execute(QueryImpl.java:243)
at
org.apache.openjpa.persistence.QueryImpl.getResultList(QueryImpl.java:294)
at testcase.TestMappingProblem.doTest(TestMappingProblem.java:42)
at testcase.TestMappingProblem.testIt(TestMappingProblem.java:20)
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 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 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:345)
at
org.apache.maven.surefire.booter.SurefireBooter.main(SurefireBooter.java:1009)
Caused by: java.lang.NullPointerException
at
org.apache.openjpa.jdbc.meta.MappingInfo.mergeJoinColumn(MappingInfo.java:1400)
at
org.apache.openjpa.jdbc.meta.MappingInfo.createJoins(MappingInfo.java:1206)
at
org.apache.openjpa.jdbc.meta.MappingInfo.createForeignKey(MappingInfo.java:968)
at
org.apache.openjpa.jdbc.meta.ValueMappingInfo.getTypeJoin(ValueMappingInfo.java:104)
at
org.apache.openjpa.jdbc.meta.strats.RelationFieldStrategy.map(RelationFieldStrategy.java:157)
at
org.apache.openjpa.jdbc.meta.FieldMapping.setStrategy(FieldMapping.java:121)
at
org.apache.openjpa.jdbc.meta.RuntimeStrategyInstaller.installStrategy(RuntimeStrategyInstaller.java:80)
at
org.apache.openjpa.jdbc.meta.FieldMapping.resolveMapping(FieldMapping.java:454)
at
org.apache.openjpa.jdbc.meta.FieldMapping.resolve(FieldMapping.java:419)
at
org.apache.openjpa.jdbc.meta.ClassMapping.resolveNonRelationMappings(ClassMapping.java:869)
at
org.apache.openjpa.jdbc.meta.MappingRepository.prepareMapping(MappingRepository.java:339)
at
org.apache.openjpa.meta.MetaDataRepository.preMapping(MetaDataRepository.java:662)
at
org.apache.openjpa.meta.MetaDataRepository.resolve(MetaDataRepository.java:549)
at
org.apache.openjpa.meta.MetaDataRepository.getMetaData(MetaDataRepository.java:308)
at
org.apache.openjpa.meta.MetaDataRepository.getMetaData(MetaDataRepository.java:363)
at
org.apache.openjpa.kernel.jpql.JPQLExpressionBuilder.getClassMetaData(JPQLExpressionBuilder.java:159)
at
org.apache.openjpa.kernel.jpql.JPQLExpressionBuilder.resolveClassMetaData(JPQLExpressionBuilder.java:139)
at
org.apache.openjpa.kernel.jpql.JPQLExpressionBuilder.getCandidateMetaData(JPQLExpressionBuilder.java:225)
at
org.apache.openjpa.kernel.jpql.JPQLExpressionBuilder.getCandidateMetaData(JPQLExpressionBuilder.java:195)
at
org.apache.openjpa.kernel.jpql.JPQLExpressionBuilder.getCandidateType(JPQLExpressionBuilder.java:188)
at
org.apache.openjpa.kernel.jpql.JPQLExpressionBuilder.access$600(JPQLExpressionBuilder.java:69)
at
org.apache.openjpa.kernel.jpql.JPQLExpressionBuilder$ParsedJPQL.populate(JPQLExpressionBuilder.java:1756)
at
org.apache.openjpa.kernel.jpql.JPQLParser.populate(JPQLParser.java:56)
at
org.apache.openjpa.kernel.ExpressionStoreQuery.populateFromCompilation(ExpressionStoreQuery.java:153)
at
org.apache.openjpa.kernel.QueryImpl.newCompilation(QueryImpl.java:658)
at
org.apache.openjpa.kernel.QueryImpl.compilationFromCache(QueryImpl.java:639)
at
org.apache.openjpa.kernel.QueryImpl.compileForCompilation(QueryImpl.java:605)
... 33 more
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