getting this error while enhancing using Datanucleus. any idea -

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i trying enhance class (class generated during run time annotations). , getting error. dn says null pointer. idea?

22:03:36,816 (pool-7-thread-1) debug [datanucleus.metadata] - registering class "test.testclass" not having metadata. 22:03:36,817 (pool-7-thread-1) error [datanucleus.enhancer] - error thrown enhancing asmclassenhancer java.lang.nullpointerexception     @ org.datanucleus.enhancer.jdo.jdomethodadapter.visitfieldinsn(jdomethodadapter.java:103)     @ org.datanucleus.asm.classreader.readcode(classreader.java:1333)     @ org.datanucleus.asm.classreader.readmethod(classreader.java:953)     @ org.datanucleus.asm.classreader.accept(classreader.java:684)     @ org.datanucleus.asm.classreader.accept(classreader.java:521)     @ org.datanucleus.enhancer.jdo.jdoclassenhancer.enhance(jdoclassenhancer.java:427)     @ org.datanucleus.enhancer.datanucleusenhancer.enhanceclass(datanucleusenhancer.java:927)     @ org.datanucleus.enhancer.datanucleusenhancer.enhance(datanucleusenhancer.java:534)     @ org.datanucleus.api.jdo.jdoenhancer.enhance(jdoenhancer.java:125)     @ com.xxxx.myclassloader.findclass(myaclassloader.java:615)

please post class.

when strange things happen, clean project. (i.e. delete built classes. in eclipse: project > clean...)

and make sure annotations using based on correct path. use jdo annotations , not datanucleus's (i.e. use javax.jdo.annotations.persistencecapable , not org.datanucleus.api.jpa.annotations.persistencecapable, although i'm not sure if possible compiler complain me)


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