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java.lang.NoClassDefFoundError: org/eclipse/persistence/internal/sessions/AbstractSession	at java.lang.Class.forName0(Native Method)	at java.lang.Class.forName(Class.java:169)	at com.bharosa.vcrypt.dataaccess.util.VCryptDataAccessMgr.initializeDBMgr(VCryptDataAccessMgr.java:130)	at com.bharosa.vcrypt.dataaccess.util.VCryptDataAccessMgr.(VCryptDataAccessMgr.java:54)	at com.bharosa.vcrypt.utility.client.ImportExportCmdLine.execute(ImportExportCmdLine.java:110)	at com.bharosa.vcrypt.utility.client.ImportExportCmdLine.main(ImportExportCmdLine.java:59)