org.springframework.transaction.TransactionSystemException

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    • org.springframework.transaction.TransactionSystemException: Could not roll back JDBC transaction; nested exception is com.mysql.jdbc.exceptions.MySQLNonTransientConnecti onException: Connection.close() has already been called. Invalid operation in this state. at org.springframework.jdbc.datasource.DataSourceTransactionManager.doRollback(DataSourceTransactionManager.java:285) at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:845) at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:822) at org.springframework.transaction.support.TransactionTemplate.rollbackOnException(TransactionTemplate.java:161) at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:134) at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:40) at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31) at org.activiti.engine.impl.TaskServiceImpl.complete(TaskServiceImpl.java:163) at org.activiti.explorer.demo.DemoDataGenerator$1.run(DemoDataGenerator.java:278) at java.lang.Thread.run(Thread.java:722) Caused by: com.mysql.jdbc.exceptions.MySQLNonTransientConnectionException: Connection.close() has already been called. Invalid operation in this state. at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:888) at com.mysql.jdbc.Connection.getMutex(Connection.java:3728) at com.mysql.jdbc.Connection.rollback(Connection.java:5204) at org.apache.commons.dbcp.DelegatingConnection.rollback(DelegatingConnection.java:368)

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