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From "Dmitry Pavlov (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (OPENJPA-2144) Using recursive relationships along with Identity Class leads to NullPointerException
Date Mon, 27 Feb 2012 12:21:48 GMT

     [ https://issues.apache.org/jira/browse/OPENJPA-2144?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Dmitry Pavlov updated OPENJPA-2144:
-----------------------------------

    Attachment: openjpa-2144-trunk.patch

I was able to fix this issue just to correct org.apache.openjpa.jdbc.meta.ClassMapping.getObjectId(...)
as it had been in 1.2.1 version

                
> Using recursive relationships along with Identity Class leads to NullPointerException
> -------------------------------------------------------------------------------------
>
>                 Key: OPENJPA-2144
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-2144
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: jdbc
>    Affects Versions: 1.2.2, 2.0.0, 2.0.1, 2.1.0, 2.1.1, 2.2.0
>            Reporter: Dmitry Pavlov
>         Attachments: openjpa-2144-trunk.patch
>
>
> Partially defined entity:
> @Entity
> @IdClass(Node2.ID.class)
> public class Node2 {
> 	@Id
> 	@GeneratedValue
> 	private long id; 
> 	@Id private int region = 1;
> 	@Id private int district = 2;
> 	@ManyToOne(fetch = LAZY)
> 	@JoinColumns({
> 			@JoinColumn(name = "PARENT_ID", referencedColumnName = "ID"),
> 			@JoinColumn(name = "REGION", referencedColumnName = "REGION"),
> 			@JoinColumn(name = "DISTRICT", referencedColumnName = "DISTRICT") })
> 	private Node2 parent;
> 	@OneToMany(mappedBy = "parent", cascade = ALL, fetch = LAZY)
> 	private List<Node2> nodes = new ArrayList<Node2>();
>                     // getters, setters, etc.
>                     // full text will be attached as a unit test: TestRecursiveRelationshipsWithIdClass.testTree()
> An attempt to use a such entity leads to:
> FailedObject: org.apache.openjpa.persistence.recursive.idclass.Node2-1151::1::2 [java.lang.String]
> 	at org.apache.openjpa.kernel.BrokerImpl.refreshInternal(BrokerImpl.java:3107)
> 	at org.apache.openjpa.kernel.BrokerImpl.refresh(BrokerImpl.java:2998)
> 	at org.apache.openjpa.kernel.DelegatingBroker.refresh(DelegatingBroker.java:1134)
> 	at org.apache.openjpa.persistence.EntityManagerImpl.refresh(EntityManagerImpl.java:780)
> 	at org.apache.openjpa.persistence.EntityManagerImpl.refresh(EntityManagerImpl.java:757)
> 	at org.apache.openjpa.persistence.recursive.idclass.TestRecursiveRelationshipsWithIdClass.setUpInitialTree(TestRecursiveRelationshipsWithIdClass.java:130)
> 	at org.apache.openjpa.persistence.recursive.idclass.TestRecursiveRelationshipsWithIdClass.testPreparedSQLQueryToTree(TestRecursiveRelationshipsWithIdClass.java:92)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:48)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 	at java.lang.reflect.Method.invoke(Method.java:600)
> 	at junit.framework.TestCase.runTest(TestCase.java:154)
> 	at org.apache.openjpa.persistence.test.AbstractPersistenceTestCase.runTest(AbstractPersistenceTestCase.java:579)
> 	at junit.framework.TestCase.runBare(TestCase.java:127)
> 	at org.apache.openjpa.persistence.test.AbstractPersistenceTestCase.runBare(AbstractPersistenceTestCase.java:566)
> 	at org.apache.openjpa.persistence.test.AbstractPersistenceTestCase.runBare(AbstractPersistenceTestCase.java:542)
> 	at junit.framework.TestResult$1.protect(TestResult.java:106)
> 	at junit.framework.TestResult.runProtected(TestResult.java:124)
> 	at junit.framework.TestResult.run(TestResult.java:109)
> 	at junit.framework.TestCase.run(TestCase.java:118)
> 	at org.apache.openjpa.persistence.test.AbstractPersistenceTestCase.run(AbstractPersistenceTestCase.java:206)
> 	at junit.framework.TestSuite.runTest(TestSuite.java:208)
> 	at junit.framework.TestSuite.run(TestSuite.java:203)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:48)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 	at java.lang.reflect.Method.invoke(Method.java:600)
> 	at org.apache.maven.surefire.junit.JUnitTestSet.execute(JUnitTestSet.java:213)
> 	at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.executeTestSet(AbstractDirectoryTestSuite.java:115)
> 	at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.execute(AbstractDirectoryTestSuite.java:102)
> 	at org.apache.maven.surefire.Surefire.run(Surefire.java:180)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:48)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 	at java.lang.reflect.Method.invoke(Method.java:600)
> 	at org.apache.maven.surefire.booter.SurefireBooter.runSuitesInProcess(SurefireBooter.java:350)
> 	at org.apache.maven.surefire.booter.SurefireBooter.main(SurefireBooter.java:1021)
> Caused by: java.lang.NullPointerException
> 	at org.apache.openjpa.util.ApplicationIds$PrimaryKeyFieldManager.fetchLongField(ApplicationIds.java:669)
> 	at org.apache.openjpa.persistence.recursive.idclass.Node2.pcCopyKeyFieldsToObjectId(Node2.java)
> 	at org.apache.openjpa.enhance.PCRegistry.copyKeyFieldsToObjectId(PCRegistry.java:171)
> 	at org.apache.openjpa.util.ApplicationIds.fromPKValues(ApplicationIds.java:224)
> 	at org.apache.openjpa.jdbc.meta.ClassMapping.getObjectId(ClassMapping.java:223)
> 	at org.apache.openjpa.jdbc.meta.ClassMapping.getObjectId(ClassMapping.java:147)
> 	at org.apache.openjpa.jdbc.meta.strats.RelationFieldStrategy.load(RelationFieldStrategy.java:736)
> 	at org.apache.openjpa.jdbc.meta.FieldMapping.load(FieldMapping.java:928)
> 	at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.load(JDBCStoreManager.java:1094)
> 	at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.load(JDBCStoreManager.java:1038)
> 	at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.load(JDBCStoreManager.java:659)
> 	at org.apache.openjpa.util.ImplHelper.loadAll(ImplHelper.java:107)
> 	at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.loadAll(JDBCStoreManager.java:695)
> 	at org.apache.openjpa.kernel.DelegatingStoreManager.loadAll(DelegatingStoreManager.java:122)
> 	at org.apache.openjpa.kernel.BrokerImpl.refreshInternal(BrokerImpl.java:3071)
> 	... 36 more

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