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https://issues.apache.org/jira/browse/OPENJPA-2227?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on OPENJPA-2227 started by Jody Grassel.
> OpenJPA doesn't find custom SequenceGenerators
> ----------------------------------------------
>
> Key: OPENJPA-2227
> URL: https://issues.apache.org/jira/browse/OPENJPA-2227
> Project: OpenJPA
> Issue Type: Bug
> Components: kernel
> Affects Versions: 2.0.0, 2.1.0, 2.2.0
> Environment: WebSphere Application Server V8.0 and V8.5
> Reporter: Jens Leisenberg
> Assignee: Jody Grassel
> Priority: Blocker
> Attachments: ClassNotFoundException.txt
>
>
> I'm trying to use a custom SequenceGenerator within an enterprise application
> using openJPA (providing by WebSphere).
> When defining a custom Sequence a ClassNotFoundException (for the Sequence
> class) will be thrown when trying to insert data into the database.
> ExampleConfiguration:
> {code}
> @Entity
> @SequenceGenerator(name="MySequence",
> sequenceName="org.apache.openjpa.generator.UIDGenerator()")
> public class Customer implements Serializable {
> @Id
> @GeneratedValue(strategy=GenerationType.SEQUENCE, generator="MySequence")
> private long id;
> {code}
> The example will produce the stacktrace attached.
> It seems that the wrong class loader is used to instantiate the custom
> sequence class. A very similar issue seems to be: OPENJPA-758. With JavaSE
> (JUnit) all is working fine, but after deploying into WAS the Exception will
> occur.
> I think within the method SequenceMetaData.instantiate(Classloader envLoader)
> the JavaTypes.classForName() -method with parameter mustExist=false should be
> used instead of the pure Class.forName() call. But I'm not sure about the
> Metadata-parameter needed for this method call.
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