writer throws an exception if second set of documents sent to broker

[tmills]

Error on process CAS call to remote service:
org.apache.uima.aae.error.UimaEEServiceException: org.apache.uima.aae.error.UimaAsDelegateException: ----> Controller:/Aggregate with de-identification Received Exception  on CAS:-78a3f0e6:1629c8b9cb4:-7ff9 From Delegate:remoteI2b2Writer
	at org.apache.uima.adapter.jms.activemq.JmsOutputChannel.sendReply(JmsOutputChannel.java:946)
	at org.apache.uima.aae.controller.AggregateAnalysisEngineController_impl.sendReplyWithException(AggregateAnalysisEngineController_impl.java:2076)
	at org.apache.uima.aae.controller.AggregateAnalysisEngineController_impl.sendReplyToRemoteClient(AggregateAnalysisEngineController_impl.java:2170)
	at org.apache.uima.aae.controller.AggregateAnalysisEngineController_impl.replyToClient(AggregateAnalysisEngineController_impl.java:2342)
	at org.apache.uima.aae.controller.AggregateAnalysisEngineController_impl.finalStep(AggregateAnalysisEngineController_impl.java:1862)
	at org.apache.uima.aae.controller.AggregateAnalysisEngineController_impl.abortProcessingCas(AggregateAnalysisEngineController_impl.java:1082)
	at org.apache.uima.aae.controller.AggregateAnalysisEngineController_impl.process(AggregateAnalysisEngineController_impl.java:1126)
	at org.apache.uima.aae.error.handler.ProcessCasErrorHandler.handleError(ProcessCasErrorHandler.java:573)
	at org.apache.uima.aae.error.ErrorHandlerChain.handle(ErrorHandlerChain.java:57)
	at org.apache.uima.aae.handler.input.ProcessResponseHandler.handleProcessResponseWithException(ProcessResponseHandler.java:653)
	at org.apache.uima.aae.handler.input.ProcessResponseHandler.handle(ProcessResponseHandler.java:780)
	at org.apache.uima.adapter.jms.activemq.JmsInputChannel.onMessage(JmsInputChannel.java:731)
	at org.springframework.jms.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:689)
	at org.springframework.jms.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:649)
	at org.springframework.jms.listener.AbstractMessageListenerContainer.doExecuteListener(AbstractMessageListenerContainer.java:619)
	at org.springframework.jms.listener.AbstractPollingMessageListenerContainer.doReceiveAndExecute(AbstractPollingMessageListenerContainer.java:307)
	at org.springframework.jms.listener.AbstractPollingMessageListenerContainer.receiveAndExecute(AbstractPollingMessageListenerContainer.java:245)
	at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.invokeListener(DefaultMessageListenerContainer.java:1144)
	at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.executeOngoingLoop(DefaultMessageListenerContainer.java:1136)
	at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.run(DefaultMessageListenerContainer.java:1033)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at org.apache.uima.aae.UimaAsThreadFactory$1.run(UimaAsThreadFactory.java:132)
	at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.uima.aae.error.UimaAsDelegateException: ----> Controller:/Aggregate with de-identification Received Exception  on CAS:-78a3f0e6:1629c8b9cb4:-7ff9 From Delegate:remoteI2b2Writer
	at org.apache.uima.aae.handler.input.ProcessResponseHandler.handleProcessResponseWithException(ProcessResponseHandler.java:641)
	... 14 more
Caused by: org.apache.uima.aae.error.UimaEEServiceException: org.apache.uima.analysis_engine.AnalysisEngineProcessException
	at AbstractJdbcWriter.process(AbstractJdbcWriter.java:188)
	at org.apache.uima.analysis_component.JCasAnnotator_ImplBase.process(JCasAnnotator_ImplBase.java:48)
	at org.apache.uima.analysis_engine.impl.PrimitiveAnalysisEngine_impl.callAnalysisComponentProcess(PrimitiveAnalysisEngine_impl.java:396)
	at org.apache.uima.analysis_engine.impl.PrimitiveAnalysisEngine_impl.processAndOutputNewCASes(PrimitiveAnalysisEngine_impl.java:314)
	at org.apache.uima.aae.controller.PrimitiveAnalysisEngineController_impl.process(PrimitiveAnalysisEngineController_impl.java:813)
	at org.apache.uima.aae.handler.HandlerBase.invokeProcess(HandlerBase.java:121)
	at org.apache.uima.aae.handler.input.ProcessRequestHandler_impl.handleProcessRequestFromRemoteClient(ProcessRequestHandler_impl.java:572)
	at org.apache.uima.aae.handler.input.ProcessRequestHandler_impl.handle(ProcessRequestHandler_impl.java:1090)
	at org.apache.uima.aae.handler.input.MetadataRequestHandler_impl.handle(MetadataRequestHandler_impl.java:78)
	at org.apache.uima.adapter.jms.activemq.JmsInputChannel.onMessage(JmsInputChannel.java:731)
	at org.springframework.jms.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:689)
	at org.springframework.jms.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:649)
	at org.springframework.jms.listener.AbstractMessageListenerContainer.doExecuteListener(AbstractMessageListenerContainer.java:619)
	at org.springframework.jms.listener.AbstractPollingMessageListenerContainer.doReceiveAndExecute(AbstractPollingMessageListenerContainer.java:307)
	at org.springframework.jms.listener.AbstractPollingMessageListenerContainer.receiveAndExecute(AbstractPollingMessageListenerContainer.java:245)
	at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.invokeListener(DefaultMessageListenerContainer.java:1144)
	at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.run(DefaultMessageListenerContainer.java:1038)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at org.apache.uima.aae.UimaAsThreadFactory$1.run(UimaAsThreadFactory.java:132)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.sql.SQLException: Closed Statement
	at oracle.jdbc.driver.OracleClosedStatement.setString(OracleClosedStatement.java:490)
	at oracle.jdbc.driver.OraclePreparedStatementWrapper.setString(OraclePreparedStatementWrapper.java:255)
	at AbstractJdbcWriter.writeTableRow(AbstractJdbcWriter.java:256)
	at I2b2JdbcWriter.writeConceptRows(I2b2JdbcWriter.java:264)
	at I2b2JdbcWriter.writeJCasInformation(I2b2JdbcWriter.java:158)
	at AbstractJdbcWriter.process(AbstractJdbcWriter.java:172)
	... 20 more

	at org.apache.uima.adapter.jms.activemq.JmsOutputChannel.sendReply(JmsOutputChannel.java:972)
	at org.apache.uima.aae.error.handler.ProcessCasErrorHandler.sendExceptionToClient(ProcessCasErrorHandler.java:155)
	at org.apache.uima.aae.error.handler.ProcessCasErrorHandler.handleError(ProcessCasErrorHandler.java:673)
	at org.apache.uima.aae.error.ErrorHandlerChain.handle(ErrorHandlerChain.java:57)
	at org.apache.uima.aae.controller.PrimitiveAnalysisEngineController_impl.process(PrimitiveAnalysisEngineController_impl.java:1244)
	at org.apache.uima.aae.handler.HandlerBase.invokeProcess(HandlerBase.java:121)
	at org.apache.uima.aae.handler.input.ProcessRequestHandler_impl.handleProcessRequestFromRemoteClient(ProcessRequestHandler_impl.java:572)
	at org.apache.uima.aae.handler.input.ProcessRequestHandler_impl.handle(ProcessRequestHandler_impl.java:1090)
	at org.apache.uima.aae.handler.input.MetadataRequestHandler_impl.handle(MetadataRequestHandler_impl.java:78)
	at org.apache.uima.adapter.jms.activemq.JmsInputChannel.onMessage(JmsInputChannel.java:731)
	at org.springframework.jms.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:689)
	at org.springframework.jms.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:649)
	at org.springframework.jms.listener.AbstractMessageListenerContainer.doExecuteListener(AbstractMessageListenerContainer.java:619)
	at org.springframework.jms.listener.AbstractPollingMessageListenerContainer.doReceiveAndExecute(AbstractPollingMessageListenerContainer.java:307)
	at org.springframework.jms.listener.AbstractPollingMessageListenerContainer.receiveAndExecute(AbstractPollingMessageListenerContainer.java:245)
	at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.invokeListener(DefaultMessageListenerContainer.java:1144)
	at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.run(DefaultMessageListenerContainer.java:1038)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	... 2 more