我用mysql测jbpm4.4，start时报错，更新数据错误。

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我用mysql测jbpm4.4，start时报错，更新数据错误。5

我用mysql测jbpm4.4.在executionService.startProcessInstanceById(pd.getId(), map);
报出org.hibernate.exception.GenericJDBCException: Could not execute JDBC batch update异常。
'HASVARS_'这个字段是Bit型，不知道为什么无法更新。

异常详细信息。

org.hibernate.util.JDBCExceptionReporter - Data too long for column 'HASVARS_' at row 1
org.hibernate.event.def.AbstractFlushingEventListener - Could not synchronize database state with session
org.hibernate.exception.GenericJDBCException: Could not execute JDBC batch update
	at org.hibernate.exception.ErrorCodeConverter.handledNonSpecificException(ErrorCodeConverter.java:92)
	at org.hibernate.exception.ErrorCodeConverter.convert(ErrorCodeConverter.java:80)
	at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
	at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:181)
	at org.hibernate.jdbc.AbstractBatcher.prepareStatement(AbstractBatcher.java:74)
	at org.hibernate.jdbc.AbstractBatcher.prepareStatement(AbstractBatcher.java:69)
	at org.hibernate.jdbc.AbstractBatcher.prepareBatchStatement(AbstractBatcher.java:150)
	at org.hibernate.persister.entity.BasicEntityPersister.insert(BasicEntityPersister.java:1839)
	at org.hibernate.persister.entity.BasicEntityPersister.insert(BasicEntityPersister.java:2200)
	at org.hibernate.action.EntityInsertAction.execute(EntityInsertAction.java:46)
	at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:239)
	at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:223)
	at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:136)
	at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:274)
	at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
	at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:730)
	at org.jbpm.pvm.internal.tx.HibernateSessionResource.prepare(HibernateSessionResource.java:56)
	at org.jbpm.pvm.internal.tx.StandardTransaction.commit(StandardTransaction.java:107)
	at org.jbpm.pvm.internal.tx.StandardTransaction.complete(StandardTransaction.java:64)
	at org.jbpm.pvm.internal.tx.StandardTransactionInterceptor.execute(StandardTransactionInterceptor.java:57)
	at org.jbpm.pvm.internal.svc.EnvironmentInterceptor.executeInNewEnvironment(EnvironmentInterceptor.java:53)
	at org.jbpm.pvm.internal.svc.EnvironmentInterceptor.execute(EnvironmentInterceptor.java:40)
	at org.jbpm.pvm.internal.svc.RetryInterceptor.execute(RetryInterceptor.java:56)
	at org.jbpm.pvm.internal.svc.SkipInterceptor.execute(SkipInterceptor.java:43)
	at org.jbpm.pvm.internal.svc.ExecutionServiceImpl.startProcessInstanceById(ExecutionServiceImpl.java:59)
	at com.dhcc.trans.action.TransAction.execute(TransAction.java:39)
	at org.springframework.web.struts.DelegatingActionProxy.execute(DelegatingActionProxy.java:110)
	at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
	at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
	at java.lang.Thread.run(Thread.java:662)
Caused by: java.sql.BatchUpdateException: Data too long for column 'HASVARS_' at row 1
	at com.mysql.jdbc.PreparedStatement.executeBatch(PreparedStatement.java:1540)
	at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:57)
	at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:174)

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