Created attachment 930598 [details]
error_message.png

Description of problem:

By trying to list completed processes (with a large numbers of result sets), a message is displayed in business-central UI (see error_message.png):

	Unexpected error encountered : java.io.IOException:write size larger than buffer can fit

This is the root cause in server.log:

	Caused by: java.io.IOException: write size larger than buffer can fit
	       at org.jboss.errai.bus.server.io.buffers.TransmissionBuffer.write(TransmissionBuffer.java:208)
	       at org.jboss.errai.bus.server.io.buffers.TransmissionBuffer.write(TransmissionBuffer.java:186)
	       at org.jboss.errai.bus.server.io.BufferHelper.encodeAndWrite(BufferHelper.java:38)
	       at org.jboss.errai.bus.server.io.BufferDeliveryHandler.deliver(BufferDeliveryHandler.java:54)
	       at org.jboss.errai.bus.server.MessageQueueImpl.offer(MessageQueueImpl.java:123)
	       at org.jboss.errai.bus.server.ServerMessageBusImpl.enqueueForDelivery(ServerMessageBusImpl.java:411)
	       ... 45 more

It only happens with a large result set (it seems like there is more than 82.600 completed process instances in the ProcessInstanceLog table).

Looking at TransmissionBuffer class, it should be the expected behaviour and the best approach should be avoid keeping the database tables from growing infinitely. However, this error message could a bit more user-friendly.

Version-Release number of selected component (if applicable):

BPM Suite 6

How reproducible:

By trying to list completed processes (with a large numbers of result sets - more than 82.600 )


Actual results:

Unexpected error encountered : java.io.IOException:write size larger than buffer can fit

Expected results:

The message could be a bit more user-friendly.


Additional info: