[jBPM] - NullPointerException after completing human task
by Adam Peng
Adam Peng [https://community.jboss.org/people/patternman] created the discussion
"NullPointerException after completing human task"
To view the discussion, visit: https://community.jboss.org/message/747902#747902
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Hello,
I faced NullPointerException after I complete human task. I'm using jBPM 5.3.0.FINAL
Hibernate: select content0_.id as id535_0_, content0_.content as content535_0_ from Content content0_ where content0_.id=?
java.lang.NullPointerException
at org.jbpm.process.workitem.wsht.CommandBasedWSHumanTaskHandler$GetResultContentResponseHandler.execute(CommandBasedWSHumanTaskHandler.java:364)
at org.jbpm.task.service.TaskClientHandler.messageReceived(TaskClientHandler.java:153)
at org.jbpm.task.service.mina.MinaTaskClientHandler.messageReceived(MinaTaskClientHandler.java:47)
at org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.messageReceived(DefaultIoFilterChain.java:716)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46)
at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:796)
at org.apache.mina.filter.codec.ProtocolCodecFilter$ProtocolDecoderOutputImpl.flush(ProtocolCodecFilter.java:427)
at org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCodecFilter.java:245)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46)
at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:796)
at org.apache.mina.core.filterchain.IoFilterAdapter.messageReceived(IoFilterAdapter.java:119)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.fireMessageReceived(DefaultIoFilterChain.java:426)
at org.apache.mina.core.polling.AbstractPollingIoProcessor.read(AbstractPollingIoProcessor.java:715)
at org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:668)
at org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:657)
at org.apache.mina.core.polling.AbstractPollingIoProcessor.access$600(AbstractPollingIoProcessor.java:68)
at org.apache.mina.core.polling.AbstractPollingIoProcessor$Processor.run(AbstractPollingIoProcessor.java:1141)
at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:64)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)
And I query the task from table Task, I found the status of the task has been changed to 'complete' but no other task been created (If the process continued it should create the next human task!)
I use TaskClientWrapper ( download from GIT) to do as below:
public void salesConfirmOperation(TaskSummary t, String userId) {
client.start(t.getId(), userId);
Map<String, Object> res = CommonUtil.newHashMap();
res.put("salesManager", "adam");
client.complete(t.getId(), userId, res);
}
Any hints/suggestiong would be appreciated!
Thanks!
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13 years, 9 months
[jBPM] - Debug Script Task/Gateway Code in Eclipse
by Timothy Charman
Timothy Charman [https://community.jboss.org/people/tcharman] created the discussion
"Debug Script Task/Gateway Code in Eclipse"
To view the discussion, visit: https://community.jboss.org/message/747809#747809
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Hi
We are using the Eclipse designer to build workflows. We are stuck on the older version as the new one released with 5.3.x doesn't seem to work for us...
We spend a lot of time debugging script tasks and gateways, as we just get an exception such as could not build knowledge base, and no detail, when the script task is compiled.
Is there an easy way we can copy code and compile it ourselves, spitting out some decent compile errors? At the moment we do a bit of coding, try to run a workflow locally, and then backtrack/comment out until we find our typos, which is a bit hit and miss.
We are OK with our service tasks, as we build in enough validation that they give us a good error when we misconfigure one.
Any pointers...
Thanks
Tim
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13 years, 9 months