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Getting a "A RuleFlowProcess cannot have more than one start node!"

created by Jett Gamboa in jBPM - View the full discussion

We currently have a process that I am attempting to load into a KnowledgeBuilder. The process has 3 embedded subprocesses, each one having a start node. The main process has one start node and another message start node. When loading into KnowledgeBuilder, I am getting the following exception:

 

java.lang.IllegalArgumentException: A RuleFlowProcess cannot have more than one start node!

          at org.jbpm.ruleflow.core.RuleFlowProcess$WorkflowProcessNodeContainer.validateAddNode(RuleFlowProcess.java:81)

          at org.jbpm.workflow.core.impl.NodeContainerImpl.addNode(NodeContainerImpl.java:42)

          at org.jbpm.workflow.core.impl.WorkflowProcessImpl.addNode(WorkflowProcessImpl.java:63)

          at org.jbpm.bpmn2.xml.AbstractNodeHandler.end(AbstractNodeHandler.java:110)

 

 

A little Googling led me to this issue in JIRA: https://issues.jboss.org/browse/JBPM-3586

 

I tried loading the multiple-incomes.bpmn attached in the JIRA issue and I am getting the same error. The resolution does say that it is implemented as of June 6, 2012 and should make it's way to JBPM 5.4 with a note: "support for multiple start events with restriction that only one can be with no event definition". I attempted to use the snapshot build (5.4.0-SNAPSHOT) by adding the following to my pom.xml

 

    <repositories>

        <repository>

            <id>repository.jboss.org</id>

            <name>JBoss Repository - Snapshots</name>

            <url>http://snapshots.jboss.org/maven2</url>

            <layout>default</layout>

            <releases>

                <enabled>false</enabled>

            </releases>

            <snapshots>

                <enabled>true</enabled>

                <updatePolicy>never</updatePolicy>

            </snapshots>

        </repository>

    </repositories>

 

I am however getting the same error when I load the file. Has anyone experienced a similar issue or at least can provide information on how to get a version that has the fix for this?

 

Thanks in advance the help.

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