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problem with MVEL:Possible incorrect version of ASM present (3.0 required). Disabling JIT compiler. Reflective Optimizer will be used.
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created by <a href="http://community.jboss.org/people/luhong">hong lu</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/645632#645632">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 use bpmn2 eclipse plugin create a process flow and program a test.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I get below output messages:</p><p>(null: 2, 307): cvc-elt.1: Cannot find the declaration of element 'bpmn2:definitions'.</p><p>(null: 33, 63): cvc-elt.4.2: Cannot resolve 'dc:Point' to a type definition for element 'di:waypoint'.</p><p>(null: 34, 63): cvc-elt.4.2: Cannot resolve 'dc:Point' to a type definition for element 'di:waypoint'.</p><p>(null: 37, 63): cvc-elt.4.2: Cannot resolve 'dc:Point' to a type definition for element 'di:waypoint'.</p><p>(null: 38, 63): cvc-elt.4.2: Cannot resolve 'dc:Point' to a type definition for element 'di:waypoint'.</p><p>java.lang.NullPointerException</p><p> at org.mvel2.optimizers.OptimizerFactory.<clinit>(OptimizerFactory.java:45)</p><p> at org.drools.base.mvel.MVELCompilationUnit.compile(MVELCompilationUnit.java:419)</p><p> at org.drools.base.mvel.MVELCompilationUnit.getCompiledExpression(MVELCompilationUnit.java:243)</p><p> at org.jbpm.process.instance.impl.MVELAction.compile(MVELAction.java:70)</p><p> at org.jbpm.process.builder.dialect.mvel.MVELActionBuilder.build(MVELActionBuilder.java:131)</p><p> at org.jbpm.process.builder.ActionNodeBuilder.build(ActionNodeBuilder.java:25)</p><p> at org.jbpm.compiler.ProcessBuilderImpl.processNodes(ProcessBuilderImpl.java:213)</p><p> at org.jbpm.compiler.ProcessBuilderImpl.buildNodes(ProcessBuilderImpl.java:199)</p><p> at org.jbpm.compiler.ProcessBuilderImpl.buildProcess(ProcessBuilderImpl.java:163)</p><p> at org.jbpm.compiler.ProcessBuilderImpl.addProcessFromXml(ProcessBuilderImpl.java:252)</p><p> at org.drools.compiler.PackageBuilder.addProcessFromXml(PackageBuilder.java:564)</p><p> at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:608)</p><p> at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:37)</p><p> at com.test.workflow.BPMN2Test.main(BPMN2Test.java:14)</p><p>[MVEL] Notice: Possible incorrect version of ASM present (3.0 required).  Disabling JIT compiler.  Reflective Optimizer will be used.</p><p>hello world</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Could anybody tell me how to resolve above NullPointerException. I don't find any solution from google's results.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>and where I can find an full guider of how to use the BPMN2 eclipse plugin, thanks.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Forgive me for my bad english.Thanks very much.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>bpmn file:</p><p><?xml version="1.0" encoding="UTF-8"?></p><p><bpmn2:definitions xmlns:xsi="<a class="jive-link-external-small" href="http://www.w3.org/2001/XMLSchema-instance">http://www.w3.org/2001/XMLSchema-instance</a>" xmlns:bpmn2="<a class="jive-link-external-small" href="http://www.omg.org/spec/BPMN/20100524/MODEL">http://www.omg.org/spec/BPMN/20100524/MODEL</a>" xmlns:bpmndi="<a class="jive-link-external-small" href="http://www.omg.org/spec/BPMN/20100524/DI">http://www.omg.org/spec/BPMN/20100524/DI</a>" xmlns:dc="<a class="jive-link-external-small" href="http://www.omg.org/spec/DD/20100524/DC">http://www.omg.org/spec/DD/20100524/DC</a>" xmlns:di="<a class="jive-link-external-small" href="http://www.omg.org/spec/DD/20100524/DI">http://www.omg.org/spec/DD/20100524/DI</a>" id="Definitions_1"></p><p>  <bpmn2:collaboration id="Collaboration_1"></p><p>    <bpmn2:participant id="Participant_1" name="Internal" processRef="com.test.login"/></p><p>  </bpmn2:collaboration></p><p>  <bpmn2:process id="com.test.login" name="loginProcess" isClosed="true"></p><p>    <bpmn2:startEvent id="StartEvent_1" name="Start"></p><p>      <bpmn2:outgoing>SequenceFlow_3</bpmn2:outgoing></p><p>    </bpmn2:startEvent></p><p>    <bpmn2:endEvent id="EndEvent_1" name="End"></p><p>      <bpmn2:incoming>SequenceFlow_6</bpmn2:incoming></p><p>    </bpmn2:endEvent></p><p>    <bpmn2:sequenceFlow id="SequenceFlow_3" name="" sourceRef="StartEvent_1" targetRef="ScriptTask_1"/></p><p>    <bpmn2:scriptTask id="ScriptTask_1" name="Script Task" scriptFormat=""></p><p>      <bpmn2:incoming>SequenceFlow_3</bpmn2:incoming></p><p>      <bpmn2:outgoing>SequenceFlow_6</bpmn2:outgoing></p><p>      <bpmn2:script>System.out.println(&quot;hello world&quot;);</bpmn2:script></p><p>    </bpmn2:scriptTask></p><p>    <bpmn2:sequenceFlow id="SequenceFlow_6" name="" sourceRef="ScriptTask_1" targetRef="EndEvent_1"/></p><p>  </bpmn2:process></p><p>  <bpmndi:BPMNDiagram id="_L0Uu0DtuEeGfR6QZoDLdng"></p><p>    <bpmndi:BPMNPlane id="_L0Uu0TtuEeGfR6QZoDLdng" bpmnElement="com.test.login"></p><p>      <bpmndi:BPMNShape id="BPMNShape_StartEvent_1" bpmnElement="StartEvent_1"></p><p>        <dc:Bounds height="51.0" width="36.0" x="90.0" y="170.0"/></p><p>      </bpmndi:BPMNShape></p><p>      <bpmndi:BPMNShape id="BPMNShape_EndEvent_1" bpmnElement="EndEvent_1"></p><p>        <dc:Bounds height="51.0" width="36.0" x="450.0" y="170.0"/></p><p>      </bpmndi:BPMNShape></p><p>      <bpmndi:BPMNShape id="BPMNShape_ScriptTask_1" bpmnElement="ScriptTask_1"></p><p>        <dc:Bounds height="50.0" width="110.0" x="230.0" y="163.0"/></p><p>      </bpmndi:BPMNShape></p><p>      <bpmndi:BPMNEdge id="BPMNEdge_SequenceFlow_3" bpmnElement="SequenceFlow_3" sourceElement="BPMNShape_StartEvent_1" targetElement="BPMNShape_ScriptTask_1"></p><p>        <di:waypoint xsi:type="dc:Point" x="126.0" y="188.0"/></p><p>        <di:waypoint xsi:type="dc:Point" x="230.0" y="188.0"/></p><p>      </bpmndi:BPMNEdge></p><p>      <bpmndi:BPMNEdge id="BPMNEdge_SequenceFlow_4" bpmnElement="SequenceFlow_6" sourceElement="BPMNShape_ScriptTask_1" targetElement="BPMNShape_EndEvent_1"></p><p>        <di:waypoint xsi:type="dc:Point" x="340.0" y="188.0"/></p><p>        <di:waypoint xsi:type="dc:Point" x="450.0" y="188.0"/></p><p>      </bpmndi:BPMNEdge></p><p>    </bpmndi:BPMNPlane></p><p>  </bpmndi:BPMNDiagram></p><p></bpmn2:definitions></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>java source:</p><p>package com.test.workflow;</p><p>import org.drools.KnowledgeBase;<br/>import org.drools.builder.KnowledgeBuilder;<br/>import org.drools.builder.KnowledgeBuilderFactory;<br/>import org.drools.builder.ResourceType;<br/>import org.drools.io.ResourceFactory;<br/>import org.drools.runtime.StatefulKnowledgeSession;<br/>import org.drools.runtime.process.ProcessInstance;</p><p>public class BPMN2Test {<br/> public static void main(String[] args) {<br/>  KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();<br/>  kbuilder.add(ResourceFactory.newClassPathResource("com/test/workflow/flow/loginProcess.bpmn"),<br/>    ResourceType.BPMN2);<br/>  KnowledgeBase kbase = kbuilder.newKnowledgeBase();<br/>  StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();<br/>  ProcessInstance processInstance = ksession.startProcess("com.test.login");<br/> }<br/>}</p></div>
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