Hello, everyone!
When I was running the java sentences:
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add(ResourceFactory.newFileResource(filename), ResourceType.BPMN2);
the second line throws a IIIlegalArgumentException like this:
java.lang.IllegalArgumentException: Unable to instantiate service for Class 'org.drools.compiler.BPMN2ProcessProvider' at org.drools.util.ServiceRegistryImpl.get(ServiceRegistryImpl.java:161)
at org.drools.compiler.BPMN2ProcessFactory.loadProvider(BPMN2ProcessFactory.java:29)
at org.drools.compiler.BPMN2ProcessFactory.getBPMN2ProcessProvider(BPMN2ProcessFactory.java:21)
at org.drools.compiler.BPMN2ProcessFactory.configurePackageBuilder(BPMN2ProcessFactory.java:12)
at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:607)
at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:37)
at org.thgrid.robinia.executor.impl.JbpmInstance.readKnowledgeBase(JbpmInstance.java:85)
at org.thgrid.robinia.executor.impl.JbpmInstance.doIt(JbpmInstance.java:64)
at org.thgrid.robinia.executor.impl.AbstractInstance.run(AbstractInstance.java:154)
at org.thgrid.robinia.event.CallbackEventHandler.handle(CallbackEventHandler.java:11)
at org.thgrid.robinia.event.EventProcessThread.handleEvent(EventCenter.java:67)
at org.thgrid.robinia.event.EventProcessThread.run(EventCenter.java:45)
Caused by: java.lang.IllegalArgumentException: Unable to instantiate 'org.jbpm.bpmn2.BPMN2ProcessProviderImpl' at org.drools.util.ServiceRegistryImpl$ReflectionInstantiator.newInstance(ServiceRegistryImpl.java:210)
at org.drools.util.ServiceRegistryImpl$ReflectionInstantiator.call(ServiceRegistryImpl.java:202)
at org.drools.util.ServiceRegistryImpl.get(ServiceRegistryImpl.java:159)
... 11 more
Caused by: java.lang.ClassNotFoundException: org.jbpm.bpmn2.BPMN2ProcessProviderImpl at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1680)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526)
at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source)
at org.drools.util.ServiceRegistryImpl$ReflectionInstantiator.newInstance(ServiceRegistryImpl.java:207) ... 13 more
I debuged this program for days and search the Internet for solutions, but in vain.
How could this Exceptions happen?
And What should I do to solve this problem??
Thank you!!