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https://issues.apache.org/jira/browse/OPENJPA-679?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Catalina Wei updated OPENJPA-679:
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Attachment: identifying_rel_test.zip
Hi All,
Attaching a test scenario provided by Gopalakrishnan U that reproduced the
ArrayIndexOutOfBoundsException in OpenJPA .
The problem is in resolving foreignkey for the following annotation in CM class
of the testcase:
@Entity
@IdClass(CM.CMId.class)
public class CM {
@ManyToOne
@ForeignKey
@Id
private E e;
Notice that the ManyToOne relation is annotated as @ForeignKey and @Id,
OpenJpa failed in resolving the foreignKey mapping for CM entity.
Gopal worked around this problem by
rename class C to class WC
rename class CM to WCM
OpenJPA revolves class mapping in the alphabetic order of entity names.
As you see that by renaming C to WC and CM to WCM, the entity class E gets
resolved first, hence, the forigenKey field e in CM gets resolved correctly.
Fay's patch is to making sure that foreignKey mapping is resolved no matter to
in what the order we resolve the entities.
> java.lang.ArrayIndexOutOfBoundsException may occur when a relation field is
> annotated as a primary key and a foreign key
> ------------------------------------------------------------------------------------------------------------------------
>
> Key: OPENJPA-679
> URL: https://issues.apache.org/jira/browse/OPENJPA-679
> Project: OpenJPA
> Issue Type: Bug
> Reporter: Fay Wang
> Attachments: identifying_rel_test.zip, openjpa_679.patch,
> openjpa_679_1.patch
>
>
> <openjpa-1.2.0-SNAPSHOT-rexported nonfatal general error>
> org.apache.openjpa.persistence.PersistenceException: 0
> at
> org.apache.openjpa.kernel.AbstractBrokerFactory.newBroker(AbstractBrokerFactory.java:196)
> at
> org.apache.openjpa.kernel.DelegatingBrokerFactory.newBroker(DelegatingBrokerFactory.java:142)
> at
> org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:192)
> at
> org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:145)
> ....
> Caused by: java.lang.ArrayIndexOutOfBoundsException: 0
> at
> org.apache.openjpa.jdbc.sql.DBDictionary.getForeignKeyConstraintSQL(DBDictionary.java:3373)
> at
> org.apache.openjpa.jdbc.sql.DBDictionary.getAddForeignKeySQL(DBDictionary.java:3252)
> at
> org.apache.openjpa.jdbc.schema.SchemaTool.addForeignKey(SchemaTool.java:1066)
> at org.apache.openjpa.jdbc.schema.SchemaTool.add(SchemaTool.java:604)
> at org.apache.openjpa.jdbc.schema.SchemaTool.add(SchemaTool.java:344)
> at org.apache.openjpa.jdbc.schema.SchemaTool.run(SchemaTool.java:321)
> at org.apache.openjpa.jdbc.meta.MappingTool.record(MappingTool.java:501)
> at org.apache.openjpa.jdbc.meta.MappingTool.record(MappingTool.java:453)
> at
> org.apache.openjpa.jdbc.kernel.JDBCBrokerFactory.synchronizeMappings(JDBCBrokerFactory.java:159)
> at
> org.apache.openjpa.jdbc.kernel.JDBCBrokerFactory.newBrokerImpl(JDBCBrokerFactory.java:119)
> at
> org.apache.openjpa.kernel.AbstractBrokerFactory.newBroker(AbstractBrokerFactory.java:189)
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