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java.lang.NoClassDefFoundError: javax/transaction/Synchronization at java.lang.Class.getDeclaredMethods0(Native Method) at java.lang.Class.privateGetDeclaredMethods( at java.lang.Class.privateGetPublicMethods( at java.lang.Class.getMethod0( at java.lang.Class.getMethod( at javax.jdo.JDOHelper.getPersistenceManagerFactory(Unknown Source) at javax.jdo.JDOHelper.getPersistenceManagerFactory(Unknown Source) at<init>( at