[OPENJPA-2226] Automatic runtime enhancement only works when the class is listed in the first persistence-unit

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.0.1, 2.2.0
• Component/s: jpa
• Assignee: Unassigned
• Reporter: Manuel Meyer
• Created: 09/Jul/12 09:50
• Updated: 09/Jul/12 13:18

Description

When multiple persistence-units are defined in the persistence.xml, only the first one is examined when looking for classes to enhance when using the automatic runtime enhancement (e.g., using the "-javaagent:openjpa.jar" argument). So if the project uses the following persistence.xml:

<persistence xmlns="http://java.sun.com/xml/ns/persistence" version="2.0">
<persistence-unit name="unit1" transaction-type="RESOURCE_LOCAL">
<class>unit1.SomeClass</class>
</persistence-unit>
<persistence-unit name="unit2" transaction-type="RESOURCE_LOCAL">
<class>unit2.OtherClass</class>
</persistence-unit>
</persistence>

In this example, when unit1.SomeClass is loaded, it will be enhanced, but unit2.SomeClass won't ever be enhanced.

The exception we get is following:

Exception in thread "main" <openjpa-2.2.0-r422266:1244990 nonfatal user error> org.apache.openjpa.persistence.ArgumentException: An error occurred while parsing the query filter "select t from OtherClass t". Error message: The name "OtherClass" is not a recognized entity or identifier. Perhaps you meant SomeClass, which is a close match. Known entity names: [SomeClass]
at org.apache.openjpa.kernel.exps.AbstractExpressionBuilder.parseException(AbstractExpressionBuilder.java:119)
at org.apache.openjpa.kernel.jpql.JPQLExpressionBuilder.getClassMetaData(JPQLExpressionBuilder.java:194)
at org.apache.openjpa.kernel.jpql.JPQLExpressionBuilder.resolveClassMetaData(JPQLExpressionBuilder.java:167)
at org.apache.openjpa.kernel.jpql.JPQLExpressionBuilder.getCandidateMetaData(JPQLExpressionBuilder.java:242)
at org.apache.openjpa.kernel.jpql.JPQLExpressionBuilder.getCandidateMetaData(JPQLExpressionBuilder.java:212)
at org.apache.openjpa.kernel.jpql.JPQLExpressionBuilder.getCandidateType(JPQLExpressionBuilder.java:205)
at org.apache.openjpa.kernel.jpql.JPQLExpressionBuilder.access$200(JPQLExpressionBuilder.java:80)
at org.apache.openjpa.kernel.jpql.JPQLExpressionBuilder$ParsedJPQL.populate(JPQLExpressionBuilder.java:2417)
at org.apache.openjpa.kernel.jpql.JPQLParser.populate(JPQLParser.java:61)
at org.apache.openjpa.kernel.ExpressionStoreQuery.populateFromCompilation(ExpressionStoreQuery.java:162)
at org.apache.openjpa.kernel.QueryImpl.newCompilation(QueryImpl.java:673)
at org.apache.openjpa.kernel.QueryImpl.compilationFromCache(QueryImpl.java:654)
at org.apache.openjpa.kernel.QueryImpl.compileForCompilation(QueryImpl.java:620)
at org.apache.openjpa.kernel.QueryImpl.compileForExecutor(QueryImpl.java:682)
at org.apache.openjpa.kernel.QueryImpl.compile(QueryImpl.java:589)
at org.apache.openjpa.persistence.EntityManagerImpl.createQuery(EntityManagerImpl.java:997)
at org.apache.openjpa.persistence.EntityManagerImpl.createQuery(EntityManagerImpl.java:979)
at org.apache.openjpa.persistence.EntityManagerImpl.createQuery(EntityManagerImpl.java:102)
at de.meyerwerft.providertest.backend.BackendZugriff.leseMitPU2(BackendZugriff.java:60)
at TesterMain.main(TesterMain.java:16)

Issue Links

• is a clone of: OPENJPA-78 Automatic runtime enhancement only works when the class is listed in the first persistence-unit