[jBPM Users] - Re: jbpm 4.0 creating and running processes without persiste
by thirumalvishnu
For the above scenario I tried following
private JpdlProcessDefinition loadProcessDefinition() throws IOException {
JpdlParser jpdlParser = new JpdlParser();
Parse parse = jpdlParser.createParse();
String fileLocation ="*****.jpdl.xml";
FileInputStream inputStream = new FileInputStream(fileLocation);
parse.setInputStream(inputStream);
parse.execute();
return (JpdlProcessDefinition ) parse.getDocumentObject();
}
and from calling section had this block
ProcessDefinitionImpl processDefinition = loadProcessDefinition();
| ClientProcessInstance ci = processDefinition.createProcessInstance();
| ci.createVariable("arg", publishArgs);
| ci.createVariable("fc", fc);
| ci.start();
But I get the exception ,
org.jbpm.pvm.internal.wire.WireException: couldn't invoke method execute: couldn't create argument 1: null
at org.jbpm.jpdl.internal.activity.JavaActivity.perform(JavaActivity.java:97)
at org.jbpm.jpdl.internal.activity.JpdlAutomaticActivity.execute(JpdlAutomaticActivity.java:14)
at org.jbpm.pvm.internal.model.op.ExecuteActivity.perform(ExecuteActivity.java:60)
at org.jbpm.pvm.internal.model.ExecutionImpl.performAtomicOperationSync(ExecutionImpl.java:625)
at org.jbpm.pvm.internal.model.ExecutionImpl.performAtomicOperation(ExecutionImpl.java:585)
at org.jbpm.pvm.internal.model.ExecutionImpl.start(ExecutionImpl.java:198)
at com.test.flow.FlowController$1.run(FlowController.java:90)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: java.lang.Exception: couldn't create argument 1: null
at org.jbpm.pvm.internal.wire.descriptor.ObjectDescriptor.getArgs(ObjectDescriptor.java:348)
at org.jbpm.jpdl.internal.activity.JavaActivity.perform(JavaActivity.java:79)
... 7 more
Caused by: java.lang.NullPointerException
at org.jbpm.pvm.internal.script.EnvironmentBindings.getReadContext(EnvironmentBindings.java:61)
at org.jbpm.pvm.internal.script.EnvironmentBindings.containsKey(EnvironmentBindings.java:72)
at javax.script.SimpleScriptContext.getAttribute(SimpleScriptContext.java:143)
at org.jbpm.pvm.internal.script.JuelScriptEngine.toELContext(JuelScriptEngine.java:94)
at org.jbpm.pvm.internal.script.JuelScriptEngine.parse(JuelScriptEngine.java:162)
at org.jbpm.pvm.internal.script.JuelScriptEngine.eval(JuelScriptEngine.java:62)
at javax.script.AbstractScriptEngine.eval(AbstractScriptEngine.java:84)
at org.jbpm.pvm.internal.script.ScriptManager.evaluate(ScriptManager.java:116)
at org.jbpm.pvm.internal.script.ScriptManager.evaluate(ScriptManager.java:108)
at org.jbpm.pvm.internal.script.ScriptManager.evaluateExpression(ScriptManager.java:80)
at org.jbpm.pvm.internal.wire.descriptor.ObjectDescriptor.construct(ObjectDescriptor.java:180)
at org.jbpm.pvm.internal.wire.WireContext.construct(WireContext.java:473)
at org.jbpm.pvm.internal.wire.WireContext.create(WireContext.java:452)
at org.jbpm.pvm.internal.wire.descriptor.ObjectDescriptor.getArgs(ObjectDescriptor.java:343)
... 8 more
Any help on how to resolve this ....
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17 years
[jBPM Users] - Re: decision node based on data not in task variables
by sravyts
Ok, that was indeed what I was missing, thanks for the help.
This is my actual node in my processdefinition:
<j:decision name="evaluate document">
| <handler expr="#{decisionConditionHandler}">
| <field name="conditions">
| <list>
| <object class="org.example.Condition">
| <field name="transitionName">
| <string value="Bad"/>
| </field>
| <field name="expression">
| <string value="#{varName == false}"/>
| </field>
| </object>
| <object class="org.example.Condition">
| <field name="transitionName">
| <string value="Good"/>
| </field>
| <field name="expression">
| <string value="#{varName == true}"/>
| </field>
| </object>
| </list>
| </field>
| </handler>
| <j:transition name="Bad" to="Try again"/>
| <j:transition name="Good" to="Submit document"/>
| </j:decision>
and my decisionconditionHandler has a variable:
List<Condition> conditions;
Wkr,
Sofie
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17 years