I had issues with hornetq in the human task war file so I switched to the standalone mina server so I could test my application. I changed the code to the following but still get an exception that appears to be an issue with the I18NText data. After starting a process there are 2 rows added to that table and the TASK_SUBJECTS_ID column is null in the first one.
[java] Hibernate: select subjects0_.Task_Subjects_Id as Task4_1_, subjects0_.id as id1_, subjects0_.id as id7_0_, subjects0_.language as language7_0_, subjects0_.text as text7_0_ from I18NText su
bjects0_ where subjects0_.Task_Subjects_Id=?
[java] org.apache.mina.filter.codec.ProtocolEncoderException: java.lang.NullPointerException
[java] at org.apache.mina.filter.codec.ProtocolCodecFilter.filterWrite(ProtocolCodecFilter.java:355)
[java] at org.apache.mina.core.filterchain.DefaultIoFilterChain.callPreviousFilterWrite(DefaultIoFilterChain.java:509)
[java] at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1400(DefaultIoFilterChain.java:46)
[java] at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.filterWrite(DefaultIoFilterChain.java:808)
[java] at org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.filterWrite(DefaultIoFilterChain.java:734)
[java] at org.apache.mina.core.filterchain.DefaultIoFilterChain.callPreviousFilterWrite(DefaultIoFilterChain.java:509)
[java] at org.apache.mina.core.filterchain.DefaultIoFilterChain.fireFilterWrite(DefaultIoFilterChain.java:501)
[java] at org.apache.mina.core.session.AbstractIoSession.write(AbstractIoSession.java:490)
[java] at org.apache.mina.core.session.AbstractIoSession.write(AbstractIoSession.java:435)
[java] at org.jbpm.task.service.mina.MinaSessionWriter.write(MinaSessionWriter.java:31)
[java] at org.jbpm.task.service.TaskServerHandler.messageReceived(TaskServerHandler.java:134)
[java] at org.jbpm.task.service.mina.MinaTaskServerHandler.messageReceived(MinaTaskServerHandler.java:41)
[java] at org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.messageReceived(DefaultIoFilterChain.java:716)
[java] at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434)
[java] at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46)
[java] at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:796)
[java] at org.apache.mina.filter.codec.ProtocolCodecFilter$ProtocolDecoderOutputImpl.flush(ProtocolCodecFilter.java:427)
[java] at org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCodecFilter.java:245)
[java] at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434)
[java] at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46)
[java] at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:796)
[java] at org.apache.mina.filter.logging.LoggingFilter.messageReceived(LoggingFilter.java:177)
[java] at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434)
[java] at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46)
[java] at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:796)
[java] at org.apache.mina.core.filterchain.IoFilterAdapter.messageReceived(IoFilterAdapter.java:119)
[java] at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434)
[java] at org.apache.mina.core.filterchain.DefaultIoFilterChain.fireMessageReceived(DefaultIoFilterChain.java:426)
[java] at org.apache.mina.core.polling.AbstractPollingIoProcessor.read(AbstractPollingIoProcessor.java:692)
[java] at org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:645)
[java] at org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:634)
[java] at org.apache.mina.core.polling.AbstractPollingIoProcessor.access$400(AbstractPollingIoProcessor.java:66)
[java] at org.apache.mina.core.polling.AbstractPollingIoProcessor$Processor.run(AbstractPollingIoProcessor.java:1078)
[java] at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:64)
[java] at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
[java] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
[java] at java.lang.Thread.run(Thread.java:662)
[java] Caused by: java.lang.NullPointerException
[java] at java.io.ObjectOutputStream$BlockDataOutputStream.getUTFLength(ObjectOutputStream.java:2106)
[java] at java.io.ObjectOutputStream$BlockDataOutputStream.writeUTF(ObjectOutputStream.java:1977)
[java] at java.io.ObjectOutputStream.writeUTF(ObjectOutputStream.java:849)
[java] at org.jbpm.task.I18NText.writeExternal(I18NText.java:53)
[java] at org.jbpm.task.utils.CollectionUtils.writeI18NTextList(CollectionUtils.java:235)
[java] at org.jbpm.task.Task.writeExternal(Task.java:92)
[java] at java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1429)
[java] at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1398)
[java] at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158)
[java] at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1346)
[java] at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1154)
[java] at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1518)
[java] at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1483)
[java] at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1400)
[java] at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158)
[java] at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1518)
[java] at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1483)
[java] at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1400)
[java] at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158)
[java] at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:330)
[java] at org.apache.mina.core.buffer.AbstractIoBuffer.putObject(AbstractIoBuffer.java:2011)
[java] at org.apache.mina.filter.codec.serialization.ObjectSerializationEncoder.encode(ObjectSerializationEncoder.java:80)
[java] at org.apache.mina.filter.codec.ProtocolCodecFilter.filterWrite(ProtocolCodecFilter.java:322)