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POTrouble with Aspectj load-time-weaving when using EclipseLink JPA in Spring dm Server 1.x
 

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  1. POTrouble with Aspectj load-time-weaving when using EclipseLink JPA in Spring dm Server 1.x
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    <p>I am attempting to get EclipseLink JPA working inside the Spring dm Server OSGi environment.</p> <p>Relevant frameworks and libraries downloaded from the Spring Enterprise Bundle Repository include:</p> <ul> <li>dm Server 1.0.2.SR02</li> <li>AspectJ Runtime 1.6.3</li> <li>AspectJ Weaver 1.6.3</li> <li>Spring Framework 2.5.6.A</li> <li>Eclipse Persistence 1.1.0</li> <li>Javax Persistence API 1.99.0</li> </ul> <p>I followed the same structure as presented in the <a href="http://www.springsource.org/dmserver" rel="nofollow noreferrer">PetClinic-1.5.0</a> example for setting up EclipseLink JPA. Everything works until lazy-fetching is enabled (which requires proxied objects).</p> <p>Once lazy-fetching is enabled, the following error suggests that load-time-weaving is not working correctly.</p> <p>---- (truncated for readability)</p> <p>Exception [EclipseLink-60] (Eclipse Persistence Services - 1.1.0.r3634): org.eclipse.persistence.exceptions.DescriptorExcep tion Exception Description: The method [_persistence_setcustomer_vh] or [_persistence_getcustomer_vh] is not defined in the object [net.fractech.fds.backoffice.Job]. Internal Exception: java.lang.NoSuchMethodException: net.fractech.fds.backoffice.Job._persistence_getcu stomer_vh() Mapping: org.eclipse.persistence.mappings.OneToOneMapping[customer] Descriptor: RelationalDescriptor(net.fractech.fds.backoffice.J ob --> [DatabaseTable(JOBS)])</p> <hr> <p>This shows that the _persistence_getcustomer_vh() and _persistence_setcustomer_vh() methods were not automatically weaved into the Job domain object.</p> <p><strong>Questions</strong></p> <p>1.) How do I determine if load-time-weaving is actually working; moreover, how do I log which load time weaving agent and weaver was started? How do I pass switches to this weaver to have it output debugging information?</p> <p>I assume I started load-time-weaving with &lt;context:load-time-weaver aspectj-weaving="on" /&gt;</p> <p>2.) Many searches have revealed that I do not need to pass the -javaagent parameter to the jvm when using dm Server. Is this correct?</p> <p>3.) I have assured that my domain objects in another bundle have access to the eclipse persistence classes by asserting com.springsource.org.eclipse.persistence;version="[1.1.0,1.1.0]";import-scope:=application in my eclipselink bundle and including all application bundles within a PAR. Are there any other configurations needed to enable EclipseLink JPA in Spring dm Server?</p>
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