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Could not find work item handler
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created by <a href="http://community.jboss.org/people/tob1as">Tobias Wittur</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/620260#620260">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi, </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I am trying to send a message through an intermediate message throw event. However, I ve got troubles registering a work item handler for this.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I had a look at the test case in the junit example package testMessageIntermediateThrow().</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I copied the Meta-Inf folder in my own project and created my own workItemHandler. I basically just copied the intermediateEvent xml into my bpmn file.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><a href="http://community.jboss.org/servlet/JiveServlet/showImage/2-620260-16853/project+structure.PNG"><span> http://community.jboss.org/servlet/JiveServlet/downloadImage/2-620260-16853/244-287/project+structure.PNG </span></a></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>The error I get is:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><pre ___default_attr="plain" class="jive_text_macro jive_macro_code"><p><span style="color: #ff0000;">Caused by: java.lang.RuntimeException: unable to execute Action</span></p><p><span style="color: #ff0000;">Caused by: org.drools.WorkItemHandlerNotFoundException: Could not find work item handler for Send Task</span></p></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Send Task was the old workItemHandler (in the example), the new one would be MyServiceTaskHandler:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Under Eclipse -> Properties, Action for this intermediateThrowEvent I found this:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><pre class="jive-pre"><code class="jive-code jive-java">org.drools.process.instance.impl.WorkItemImpl workItem = <font color="navy"><b>new</b></font> org.drools.process.instance.impl.WorkItemImpl();
workItem.setName(<font color="red">"Send Task"</font>);
</code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>If I change this to:</p><pre class="jive-pre"><code class="jive-code jive-java">org.drools.process.instance.impl.WorkItemImpl workItem = <font color="navy"><b>new</b></font> org.drools.process.instance.impl.WorkItemImpl();
workItem.setName(<font color="red">"MyServiceTaskHandler"</font>);
</code></pre><p>It changes it back immediately. So where exactly is that fetched</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>This is the work definition:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><pre class="jive-pre"><code class="jive-code jive-xml">import org.drools.process.core.datatype.impl.type.ObjectDataType;
import org.drools.process.core.datatype.impl.type.StringDataType;
[
  [
    <span class="jive-xml-quote">name</span> : <span class="jive-xml-quote">MyServiceTask</span>,
    <span class="jive-xml-quote">parameters</span> : [
        <span class="jive-xml-quote">Message</span> : new StringDataType()
    ],
    <span class="jive-xml-quote">displayName</span> : <span class="jive-xml-quote">MyServiceTask</span>,
    <span class="jive-xml-quote">icon</span> : <span class="jive-xml-quote">icons/arrowright.GIF</span>
  ]
]
</code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>This the java in my processTest:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><pre class="jive-pre"><code class="jive-code jive-java">KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add(ResourceFactory.newClassPathResource(<font color="red">"StartProcessWithMessage.bpmn2"</font>), ResourceType.BPMN2);
KnowledgeBase kbase = kbuilder.newKnowledgeBase();
 
StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
ksession.getWorkItemManager().registerWorkItemHandler(<font color="red">"MyServiceTask"</font>, <font color="navy"><b>new</b></font> MyServiceTaskHandler());
</code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Thx for your help.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Tobi</p></div>
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