I have moddeled a process that has a decision node in it. In the ActionHandler
for the decision node, I use execution.leaveNode("transition") to leave the
node. The problem is that although my process is followed and all the currect
log statements are output (for debug) I get a delegation exception.
The process seams to work, and is followed, but the delegationexception happens
after the process has enede.
Below is the code for my simplified decision action handler:
| package uk.co.ifdsgroup.bpm.node;
|
| import org.apache.log4j.Logger;
| import org.jbpm.graph.def.ActionHandler;
| import org.jbpm.graph.exe.ExecutionContext;
|
| import uk.co.ifdsgroup.bpm.domain.Deal;
|
| public class CheckFund implements ActionHandler
| {
| private static final long serialVersionUID = 4860913349412363614L;
| private static final Logger logger = Logger.getLogger(CheckFund.class);
|
| public void execute(ExecutionContext execution)
| {
| //Get deal
| Deal deal = (Deal)execution.getVariable("Deal");
| if(deal == null)
| {
| logger.error("No deal set on execution.");
| return;
| }
|
| //Get fund
| String fund = deal.getFund();
|
| if(fund.startsWith("Euro"))
| {
| logger.debug("European Fund.");
| execution.leaveNode("Yes");
| }
| else
| {
| logger.debug("UK Fund.");
| execution.leaveNode("No");
| }
| }
| }
|
Below is a snippet from my log, including the successfull log statements:
| 16:40:58,868 [main] DEBUG GraphElement : event 'before-signal' on
'StartState(Start)' for 'Token(/)'
| 16:40:58,884 [main] DEBUG GraphElement : event 'node-leave' on
'StartState(Start)' for 'Token(/)'
| 16:40:58,884 [main] DEBUG GraphElement : event 'transition' on
'Transition(sale)' for 'Token(/)'
| 16:40:58,884 [main] DEBUG GraphElement : event 'node-enter' on
'Decision(Amount > 10,000 Euros)' for 'Token(/)'
| 16:40:58,884 [main] DEBUG GraphElement : executing action 'CheckAmount'
| 16:40:58,884 [main] DEBUG CheckAmount : No money laundering check required.
| 16:40:58,884 [main] DEBUG GraphElement : event 'node-leave' on
'Decision(Amount > 10,000 Euros)' for 'Token(/)'
| 16:40:58,884 [main] DEBUG GraphElement : event 'transition' on
'Transition(No)' for 'Token(/)'
| 16:40:58,900 [main] DEBUG GraphElement : event 'node-enter' on
'Decision(Invest in European Fund)' for 'Token(/)'
| 16:40:58,900 [main] DEBUG GraphElement : executing action 'CheckFund'
| 16:40:58,900 [main] DEBUG CheckFund : European Fund.
| 16:40:58,915 [main] DEBUG GraphElement : event 'node-leave' on
'Decision(Invest in European Fund)' for 'Token(/)'
| 16:40:58,915 [main] DEBUG GraphElement : event 'transition' on
'Transition(Yes)' for 'Token(/)'
| 16:40:58,915 [main] DEBUG GraphElement : event 'node-enter' on 'Node(Deal
to iFAST)' for 'Token(/)'
| 16:40:58,915 [main] DEBUG GraphElement : executing action 'DealToIFast'
| 16:40:58,915 [main] DEBUG DealToIFast : Deal to iFAST.
| 16:40:58,915 [main] DEBUG VariableContainer : create variable 'success' in
'TokenVariableMap113a53d' with value 'true'
| 16:40:58,947 [main] DEBUG GraphElement : event 'node-leave' on 'Node(Deal
to iFAST)' for 'Token(/)'
| 16:40:58,947 [main] DEBUG GraphElement : event 'transition' on
'Transition(check)' for 'Token(/)'
| 16:40:58,947 [main] DEBUG GraphElement : event 'node-enter' on
'Decision(Deal Successfull)' for 'Token(/)'
| 16:40:58,947 [main] DEBUG GraphElement : executing action
'CheckDealSuccessful'
| 16:40:58,947 [main] DEBUG CheckDealSuccessful : Deal Successful.
| 16:40:58,947 [main] DEBUG GraphElement : event 'node-leave' on
'Decision(Deal Successfull)' for 'Token(/)'
| 16:40:58,962 [main] DEBUG GraphElement : event 'transition' on
'Transition(Yes)' for 'Token(/)'
| 16:40:58,962 [main] DEBUG GraphElement : event 'node-enter' on 'Node(Issue
Correspondance)' for 'Token(/)'
| 16:40:58,962 [main] DEBUG GraphElement : executing action
'IssueCorrespondence'
| 16:40:58,962 [main] DEBUG IssueCorrespondence : Issue Correspondence.
| 16:40:58,962 [main] DEBUG GraphElement : event 'node-leave' on 'Node(Issue
Correspondance)' for 'Token(/)'
| 16:40:58,962 [main] DEBUG GraphElement : event 'transition' on
'Transition(success)' for 'Token(/)'
| 16:40:58,978 [main] DEBUG GraphElement : event 'node-enter' on
'EndState(Success)' for 'Token(/)'
| 16:40:58,978 [main] DEBUG GraphElement : event 'process-end' on
'ProcessDefinition(sale)' for 'Token(/)'
| 16:40:58,978 [main] ERROR GraphElement : action threw exception: null
| org.jbpm.graph.def.DelegationException
| at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:349)
| at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:343)
| at org.jbpm.graph.node.Decision.execute(Decision.java:130)
| at org.jbpm.graph.def.Node.enter(Node.java:316)
| at org.jbpm.graph.def.Transition.take(Transition.java:119)
| at org.jbpm.graph.def.Node.leave(Node.java:382)
| at org.jbpm.graph.def.Node.leave(Node.java:346)
| at org.jbpm.graph.def.Node.execute(Node.java:338)
| at org.jbpm.graph.def.Node.enter(Node.java:316)
| at org.jbpm.graph.def.Transition.take(Transition.java:119)
| at org.jbpm.graph.def.Node.leave(Node.java:382)
| at org.jbpm.graph.def.Node.leave(Node.java:357)
| at
org.jbpm.graph.exe.ExecutionContext.leaveNode(ExecutionContext.java:128)
| at uk.co.ifdsgroup.bpm.node.CheckFund.execute(CheckFund.java:30)
| at org.jbpm.graph.def.Action.execute(Action.java:123)
| at org.jbpm.graph.def.GraphElement.executeAction(GraphElement.java:235)
| at org.jbpm.graph.def.GraphElement.executeActions(GraphElement.java:212)
| at
org.jbpm.graph.def.GraphElement.fireAndPropagateEvent(GraphElement.java:182)
| at org.jbpm.graph.def.GraphElement.fireEvent(GraphElement.java:166)
| at org.jbpm.graph.def.Node.enter(Node.java:301)
| at org.jbpm.graph.def.Transition.take(Transition.java:119)
| at org.jbpm.graph.def.Node.leave(Node.java:382)
| at org.jbpm.graph.def.Node.leave(Node.java:357)
| at
org.jbpm.graph.exe.ExecutionContext.leaveNode(ExecutionContext.java:128)
| at uk.co.ifdsgroup.bpm.node.CheckAmount.execute(CheckAmount.java:41)
| at org.jbpm.graph.def.Action.execute(Action.java:123)
| at org.jbpm.graph.def.GraphElement.executeAction(GraphElement.java:235)
| at org.jbpm.graph.def.GraphElement.executeActions(GraphElement.java:212)
| at
org.jbpm.graph.def.GraphElement.fireAndPropagateEvent(GraphElement.java:182)
| at org.jbpm.graph.def.GraphElement.fireEvent(GraphElement.java:166)
| at org.jbpm.graph.def.Node.enter(Node.java:301)
| at org.jbpm.graph.def.Transition.take(Transition.java:119)
| at org.jbpm.graph.def.Node.leave(Node.java:382)
| at org.jbpm.graph.node.StartState.leave(StartState.java:70)
| at org.jbpm.graph.exe.Token.signal(Token.java:174)
| at org.jbpm.graph.exe.Token.signal(Token.java:123)
| at org.jbpm.graph.exe.ProcessInstance.signal(ProcessInstance.java:217)
| at uk.co.ifdsgroup.bpm.test.sale.SaleTest.testProcess(SaleTest.java:36)
| at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
| at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method.invoke(Method.java:585)
| at junit.framework.TestCase.runTest(TestCase.java:154)
| at junit.framework.TestCase.runBare(TestCase.java:127)
| at junit.framework.TestResult$1.protect(TestResult.java:106)
| at junit.framework.TestResult.runProtected(TestResult.java:124)
| at junit.framework.TestResult.run(TestResult.java:109)
| at junit.framework.TestCase.run(TestCase.java:118)
| at junit.framework.TestSuite.runTest(TestSuite.java:208)
| at junit.framework.TestSuite.run(TestSuite.java:203)
| at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:478)
| at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:344)
| at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
| Caused by: java.lang.NullPointerException
| at org.jbpm.graph.node.Decision.execute(Decision.java:116)
| ... 50 more
| 16:40:58,993 [main] ERROR GraphElement : action threw exception: null
| org.jbpm.graph.def.DelegationException
| at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:349)
| at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:343)
| at org.jbpm.graph.def.GraphElement.executeAction(GraphElement.java:248)
| at org.jbpm.graph.def.GraphElement.executeActions(GraphElement.java:212)
| at
org.jbpm.graph.def.GraphElement.fireAndPropagateEvent(GraphElement.java:182)
| at org.jbpm.graph.def.GraphElement.fireEvent(GraphElement.java:166)
| at org.jbpm.graph.def.Node.enter(Node.java:301)
| at org.jbpm.graph.def.Transition.take(Transition.java:119)
| at org.jbpm.graph.def.Node.leave(Node.java:382)
| at org.jbpm.graph.def.Node.leave(Node.java:357)
| at
org.jbpm.graph.exe.ExecutionContext.leaveNode(ExecutionContext.java:128)
| at uk.co.ifdsgroup.bpm.node.CheckAmount.execute(CheckAmount.java:41)
| at org.jbpm.graph.def.Action.execute(Action.java:123)
| at org.jbpm.graph.def.GraphElement.executeAction(GraphElement.java:235)
| at org.jbpm.graph.def.GraphElement.executeActions(GraphElement.java:212)
| at
org.jbpm.graph.def.GraphElement.fireAndPropagateEvent(GraphElement.java:182)
| at org.jbpm.graph.def.GraphElement.fireEvent(GraphElement.java:166)
| at org.jbpm.graph.def.Node.enter(Node.java:301)
| at org.jbpm.graph.def.Transition.take(Transition.java:119)
| at org.jbpm.graph.def.Node.leave(Node.java:382)
| at org.jbpm.graph.node.StartState.leave(StartState.java:70)
| at org.jbpm.graph.exe.Token.signal(Token.java:174)
| at org.jbpm.graph.exe.Token.signal(Token.java:123)
| at org.jbpm.graph.exe.ProcessInstance.signal(ProcessInstance.java:217)
| at uk.co.ifdsgroup.bpm.test.sale.SaleTest.testProcess(SaleTest.java:36)
| at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
| at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method.invoke(Method.java:585)
| at junit.framework.TestCase.runTest(TestCase.java:154)
| at junit.framework.TestCase.runBare(TestCase.java:127)
| at junit.framework.TestResult$1.protect(TestResult.java:106)
| at junit.framework.TestResult.runProtected(TestResult.java:124)
| at junit.framework.TestResult.run(TestResult.java:109)
| at junit.framework.TestCase.run(TestCase.java:118)
| at junit.framework.TestSuite.runTest(TestSuite.java:208)
| at junit.framework.TestSuite.run(TestSuite.java:203)
| at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:478)
| at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:344)
| at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
| Caused by: org.jbpm.graph.def.DelegationException
| at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:349)
| at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:343)
| at org.jbpm.graph.node.Decision.execute(Decision.java:130)
| at org.jbpm.graph.def.Node.enter(Node.java:316)
| at org.jbpm.graph.def.Transition.take(Transition.java:119)
| at org.jbpm.graph.def.Node.leave(Node.java:382)
| at org.jbpm.graph.def.Node.leave(Node.java:346)
| at org.jbpm.graph.def.Node.execute(Node.java:338)
| at org.jbpm.graph.def.Node.enter(Node.java:316)
| at org.jbpm.graph.def.Transition.take(Transition.java:119)
| at org.jbpm.graph.def.Node.leave(Node.java:382)
| at org.jbpm.graph.def.Node.leave(Node.java:357)
| at
org.jbpm.graph.exe.ExecutionContext.leaveNode(ExecutionContext.java:128)
| at uk.co.ifdsgroup.bpm.node.CheckFund.execute(CheckFund.java:30)
| at org.jbpm.graph.def.Action.execute(Action.java:123)
| at org.jbpm.graph.def.GraphElement.executeAction(GraphElement.java:235)
| ... 37 more
| Caused by: java.lang.NullPointerException
| at org.jbpm.graph.node.Decision.execute(Decision.java:116)
| ... 50 more
|
I hope someone can help.
Regards
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