java.lang.NullPointerException
	at org.netbeans.modules.bpel.model.validation.staticanalysis.BPELStaticAnalysisHelper.checkAnyMissingToPartElementInInvoke(BPELStaticAnalysisHelper.java:398)
	at org.netbeans.modules.bpel.model.validation.staticanalysis.BPELStaticAnalysisVisitor.visit(BPELStaticAnalysisVisitor.java:247)
	at org.netbeans.modules.bpel.model.impl.InvokeImpl.accept(InvokeImpl.java:448)
	at org.netbeans.modules.bpel.model.impl.BpelEntityImpl.accept(BpelEntityImpl.java:205)
	at org.netbeans.modules.bpel.model.impl.BpelEntityImpl.acceptChildren(BpelEntityImpl.java:339)
	at org.netbeans.modules.bpel.model.impl.BpelEntityImpl.accept(BpelEntityImpl.java:206)
	at org.netbeans.modules.bpel.model.impl.BpelEntityImpl.acceptChildren(BpelEntityImpl.java:339)
	at org.netbeans.modules.bpel.model.impl.BpelEntityImpl.accept(BpelEntityImpl.java:206)
	at org.netbeans.modules.bpel.model.validation.AbstractValidator.validate(AbstractValidator.java:68)
	at org.netbeans.modules.xml.xam.spi.Validation.validate(Validation.java:78)
	at org.netbeans.modules.bpel.core.validation.BPELValidationController$1$1.call(BPELValidationController.java:169)
	at org.netbeans.modules.bpel.model.impl.BpelModelImpl.invoke(BpelModelImpl.java:231)
	at org.netbeans.modules.bpel.core.validation.BPELValidationController$1.run(BPELValidationController.java:183)
	at java.util.TimerThread.mainLoop(Timer.java:512)
[catch] at java.util.TimerThread.run(Timer.java:462)