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問題
LARを生成しようとすると、ポータルに以下のメッセージが表示されます:
Could not roll back Hibernate transaction; nested exception is org.hibernate.TransactionException: JDBC rollback failed
また、コンソールでは、ログが表示されます:
11:35:24,527 ERROR [liferay/background_task-1][JDBCExceptionReporter:82] Connection has already been closed. 11:35:24,540 ERROR [liferay/background_task-1][JDBCExceptionReporter:82] Connection has already been closed. 11:35:24,573 ERROR [liferay/background_task-1][JDBCTransaction:120] JDBC rollback failed java.sql.SQLException: Connection has already been closed.