@SuppressWarnings("unused")
  private static KnowledgePackage getProcessWorkItems() {
    RuleFlowProcess process = new RuleFlowProcess();
    process.setId("org.drools.test.TestProcess");
    process.setName("TestProcess");
    process.setPackageName("org.drools.test");
    StartNode start = new StartNode();
    start.setId(1);
    start.setName("Start");
    process.addNode(start);
    ActionNode actionNode = new ActionNode();
    actionNode.setId(2);
    actionNode.setName("Action");
    DroolsConsequenceAction action = new DroolsConsequenceAction();
    action.setDialect("java");
    action.setConsequence("System.out.println(\"Executed action\");");
    actionNode.setAction(action);
    process.addNode(actionNode);
    new ConnectionImpl(
        start, Node.CONNECTION_DEFAULT_TYPE, actionNode, Node.CONNECTION_DEFAULT_TYPE);
    WorkItemNode workItemNode = new WorkItemNode();
    workItemNode.setId(3);
    workItemNode.setName("WorkItem1");
    Work work = new WorkImpl();
    work.setName("MyWork");
    workItemNode.setWork(work);
    process.addNode(workItemNode);
    new ConnectionImpl(
        actionNode, Node.CONNECTION_DEFAULT_TYPE, workItemNode, Node.CONNECTION_DEFAULT_TYPE);
    WorkItemNode workItemNode2 = new WorkItemNode();
    workItemNode2.setId(4);
    workItemNode2.setName("WorkItem2");
    work = new WorkImpl();
    work.setName("MyWork");
    workItemNode2.setWork(work);
    process.addNode(workItemNode2);
    new ConnectionImpl(
        workItemNode, Node.CONNECTION_DEFAULT_TYPE, workItemNode2, Node.CONNECTION_DEFAULT_TYPE);
    WorkItemNode workItemNode3 = new WorkItemNode();
    workItemNode3.setId(5);
    workItemNode3.setName("WorkItem3");
    work = new WorkImpl();
    work.setName("MyWork");
    workItemNode3.setWork(work);
    process.addNode(workItemNode3);
    new ConnectionImpl(
        workItemNode2, Node.CONNECTION_DEFAULT_TYPE, workItemNode3, Node.CONNECTION_DEFAULT_TYPE);
    EndNode end = new EndNode();
    end.setId(6);
    end.setName("End");
    process.addNode(end);
    new ConnectionImpl(
        workItemNode3, Node.CONNECTION_DEFAULT_TYPE, end, Node.CONNECTION_DEFAULT_TYPE);

    KnowledgeBuilderImpl packageBuilder = new KnowledgeBuilderImpl();
    ProcessBuilderImpl processBuilder = new ProcessBuilderImpl(packageBuilder);
    processBuilder.buildProcess(process, null);

    return packageBuilder.getPackage();
  }
  @SuppressWarnings("unused")
  private static KnowledgePackage getProcessTimer2() {
    RuleFlowProcess process = new RuleFlowProcess();
    process.setId("org.drools.test.ProcessTimer2");
    process.setName("ProcessTimer2");
    process.setPackageName("org.drools.test");
    StartNode start = new StartNode();
    start.setId(1);
    start.setName("Start");
    process.addNode(start);
    TimerNode timerNode = new TimerNode();
    timerNode.setId(2);
    timerNode.setName("Timer");
    Timer timer = new Timer();
    timer.setDelay("0");
    timerNode.setTimer(timer);
    process.addNode(timerNode);
    new ConnectionImpl(
        start, Node.CONNECTION_DEFAULT_TYPE, timerNode, Node.CONNECTION_DEFAULT_TYPE);
    ActionNode actionNode = new ActionNode();
    actionNode.setId(3);
    actionNode.setName("Action");
    DroolsConsequenceAction action = new DroolsConsequenceAction();
    action.setDialect("java");
    action.setConsequence(
        "try { Thread.sleep(1000); } catch (Throwable t) {} System.out.println(\"Executed action\");");
    actionNode.setAction(action);
    process.addNode(actionNode);
    new ConnectionImpl(
        timerNode, Node.CONNECTION_DEFAULT_TYPE, actionNode, Node.CONNECTION_DEFAULT_TYPE);
    EndNode end = new EndNode();
    end.setId(6);
    end.setName("End");
    process.addNode(end);
    new ConnectionImpl(actionNode, Node.CONNECTION_DEFAULT_TYPE, end, Node.CONNECTION_DEFAULT_TYPE);

    KnowledgeBuilderImpl packageBuilder = new KnowledgeBuilderImpl();
    ProcessBuilderImpl processBuilder = new ProcessBuilderImpl(packageBuilder);
    processBuilder.buildProcess(process, null);
    return packageBuilder.getPackage();
  }
 /** @return true if the graph contains only a {@link StartNode} and {@link ReturnNode} */
 public boolean isTrivial() {
   return !(start.next() instanceof ReturnNode);
 }