Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via openjpa-users by Fay Wang, 1 year ago
via by Unknown author, 2 years ago
via Oracle Community by 821992, 1 year ago
This exception has no message.
via Oracle Community by 821992, 1 year ago
java.lang.NullPointerException: 	at org.apache.openjpa.meta.ClassMetaData.validateAppIdClass(	at org.apache.openjpa.meta.ClassMetaData.validateIdentity(	at org.apache.openjpa.meta.ClassMetaData.validateMeta(	at org.apache.openjpa.meta.ClassMetaData.resolve(	at org.apache.openjpa.meta.MetaDataRepository.processBuffer(	at org.apache.openjpa.meta.MetaDataRepository.resolveMeta(	at org.apache.openjpa.meta.MetaDataRepository.resolve(	at org.apache.openjpa.meta.MetaDataRepository.getMetaData(	at org.apache.openjpa.enhance.PCEnhancer.(	at	at	at org.apache.openjpa.enhance.PCEnhancer$	at org.apache.openjpa.lib.conf.Configurations.launchRunnable(	at org.apache.openjpa.lib.conf.Configurations.runAgainstAllAnchors(	at	at org.apache.openjpa.enhance.PCEnhancer.main(