| Re: [eclipselink-users] Migration failures from el 2.4 to 2.5.2.. |
Found the problem.
We were missing one of the embeddables in the persistence xml file . Lets say we have the following classes. Consider
@Embeddable
public class Foo
{
@Embedded
private Bar bar;
public Bar getBar()
{
return bar;
}
}
in our persistence.xml file we forgot to add the class Bar, so when it was processing Foo it was giving the java.util.ConcurrentModification exception. On further debugging found the following
In 2.4.0 we have the file called org.eclipse.persistence.internal.jpa.metadata.MetadataProject.java and it just had 2 steps - entity accessors, root embeddable accessors .
In 2.5.2 we have the same file that has 4 steps -> entity accessors, root embeddable accessors,converter accessors and embeddable accessors ,
The final embeddable accessors was where it failed. I believe that eclipselink should give a proper error message stating that it’s not able to reference the embedded class instead of the very generic java.util exception.
Thx
Vaidya
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On Tuesday, September 23, 2014, Rick Curtis <curtisr7@xxxxxxxxx> wrote:This smells like a bug. Can you put together some sort of a small test that recreates the problem?Thanks,RIckOn Tue, Sep 23, 2014 at 8:45 AM, vaidya nathan <vaidyaatdst@xxxxxxxxx> wrote:Any updates on this ?
On Monday, September 22, 2014, vaidya nathan <vaidyaatdst@xxxxxxxxx> wrote:Hello el users,Setup
=====
Junit test/jetty server
Eclipselink 2.5.2.v20140319-9ad6abd
Spring 3.1.3
Problem
======
We are trying to migrate from Eclipselink 2.4.0 to 2.5.2 and when we switch the versions in the pom we are getting the following ConcurrentModificationException
Exception Description: Predeployment of PersistenceUnit [ABCPersistenceUnit] failed.
Internal Exception: java.util.ConcurrentModificationException
at org.eclipse.persistence.exceptions.EntityManagerSetupException.predeployFailed(EntityManagerSetupException.java:230)
... 68 more
Caused by: java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextEntry(HashMap.java:926)
at java.util.HashMap$ValueIterator.next(HashMap.java:954)
at org.eclipse.persistence.internal.jpa.metadata.MetadataProject.processStage1(MetadataProject.java:1761)
at org.eclipse.persistence.internal.jpa.metadata.MetadataProcessor.processORMMetadata(MetadataProcessor.java:575)
at org.eclipse.persistence.internal.jpa.deployment.PersistenceUnitProcessor.processORMetadata(PersistenceUnitProcessor.java:585)
at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.predeploy(EntityManagerSetupImpl.java:1869)
The pertinent parts are as follows
<bean id="appPUM" class="com.blah.blah.MergingPersistenceUnitManager">
<property name="persistenceXmlLocations">
<list>
<value>classpath*:META-INF/file1-persistence.xml</value>
<value>classpath*:META-INF/file2-eclipse.xml</value>
<value>classpath*:META-INF/file3-tpersistence.xml</value>
</list>
</property>
<property name="defaultDataSource" ref=<dataSource>/>
</bean>
<bean id="abcemfactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean" depends-on="liquibase" lazy-init="true">
<property name="dataSource" ref="dataSource"/>
<property name="persistenceUnitManager" ref=" appPUM " />
<property name="jpaDialect" ref="eclipseLinkDialect" />
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.EclipseLinkJpaVendorAdapter">
<property name="showSql" value="true" />
<property name="generateDdl" value="false" />
</bean>
</property>
<property name="jpaPropertyMap">
<map>
<entry key="eclipselink.jdbc.native-sql" value="false"/>
<entry key="eclipselink.weaving" value="false"/>
<entry key="eclipselink.cache.shared.default" value="false"/>
<entry key="eclipselink.logging.level" value="FINE"/>
<entry key="eclipselink.logging.parameters" value="true"/>
<entry key="eclipselink.logging.exceptions" value="true"/>
<entry key="eclipselink.orm.throw.exceptions" value="true"/>
<entry key="eclipselink.jdbc.batch-writing" value="${persistence.batchWriting}"/>
<entry key="eclipselink.order-updates" value="true"/>
</map>
</property>
</bean>
Switching back to 2.4 the exception goes away
1. Has there been any changes between 2.4 to 2.5.2 that would cause this issue?
2.It appears to be in the predeploy of the persistence unit of the EntityManagerSetup for 2.5.2. Has something changed in it that we should change when migrating ?
Thx in advance
Vaidya
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Rick Curtis