java.lang.IllegalArgumentException: Unable to instantiate service for Class 'org.drools.compiler.compiler.BPMN2ProcessProvider'

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Root Cause Analysis

  1. java.lang.ClassCastException

    Cannot cast org.jbpm.bpmn2.BPMN2ProcessProviderImpl to org.drools.compiler.compiler.BPMN2ProcessProvider

    at java.lang.Class.cast()
  2. Java RT
    Class.cast
    1. java.lang.Class.cast(Class.java:3369)
    1 frame
  3. KIE Internal
    ServiceRegistryImpl.get
    1. org.kie.internal.utils.ServiceRegistryImpl.get(ServiceRegistryImpl.java:167)
    1 frame
  4. Drools :: Compiler
    KnowledgeBuilderImpl.add
    1. org.drools.compiler.compiler.BPMN2ProcessFactory.loadProvider(BPMN2ProcessFactory.java:46)
    2. org.drools.compiler.compiler.BPMN2ProcessFactory.getBPMN2ProcessProvider(BPMN2ProcessFactory.java:38)
    3. org.drools.compiler.compiler.BPMN2ProcessFactory.configurePackageBuilder(BPMN2ProcessFactory.java:29)
    4. org.drools.compiler.builder.impl.KnowledgeBuilderImpl.addKnowledgeResource(KnowledgeBuilderImpl.java:763)
    5. org.drools.compiler.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:2249)
    6. org.drools.compiler.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:2238)
    6 frames
  5. org.drools.impl
    KnowledgeBuilderImpl.add
    1. org.drools.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:83)
    1 frame
  6. com.sample
    ProcessTest.main
    1. com.sample.ProcessTest.readKnowledgeBase(ProcessTest.java:31)
    2. com.sample.ProcessTest.main(ProcessTest.java:14)
    2 frames