ava.lang.NullPointerException: This exception has no message.

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ava.lang.NullPointerException:
at com.mysql.jdbc.Statement.getGeneratedKeysInternal(Statement.java:347)
at com.mysql.jdbc.Statement.getGeneratedKeys(Statement.java:329)
at newsleecher.workers.jdbc.SaveNewGroupsWorker.save(SaveNewGroupsWorker.java:85)
at newsleecher.workers.jdbc.SaveNewGroupsWorker.access$000(SaveNewGroupsWorker.java:20)
at newsleecher.workers.jdbc.SaveNewGroupsWorker$1.consumeBuffer(SaveNewGroupsWorker.java:51)
at newsleecher.util.QueueConsumer.consumeQueue(QueueConsumer.java:53)
at newsleecher.workers.jdbc.SaveNewGroupsWorker._runJdbc(SaveNewGroupsWorker.java:58)
at newsleecher.workers.jdbc.AbstractJDBCNewsLeecherWorker._run(AbstractJDBCNewsLeecherWorker.java:44)
at newsleecher.workers.AbstractWorker.run(AbstractWorker.java:74)
at newsleecher.ui.dispatch.Dispatcher.run(Dispatcher.java:50)
at java.lang.Thread.run(Thread.java:595)

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