Cannot find scripting engine for 'groovy'

[swamy2156]

I am using Groovy script for my BPMN modal. I am getting the following exception though I was added dependency for groovy-all.jar in my pom. These are the dependencies added in my POM. Anyone has any idea why I am getting this exception thought I added dependencies which are required.

    <dependency>
     <groupId>org.codehaus.groovy</groupId>
     <artifactId>groovy-all</artifactId>
     <version>2.1.3</version>
   </dependency>
     <dependency>
        <groupId>asm</groupId>
        <artifactId>asm</artifactId>
        <version>3.2</version>
    </dependency>
   <dependency>
        <groupId>asm</groupId>
        <artifactId>asm-tree</artifactId>
        <version>3.2</version>
    </dependency>
   <dependency>
        <groupId>asm</groupId>
        <artifactId>asm-commons</artifactId>
        <version>3.2</version>
    </dependency>
    <dependency>
        <groupId>asm</groupId>
        <artifactId>asm-util</artifactId>
        <version>3.2</version>
    </dependency>
    <dependency>
        <groupId>asm</groupId>
        <artifactId>asm-analysis</artifactId>
        <version>3.2</version>
    </dependency>
‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

But I am getting the following exception.
org.activiti.engine.ActivitiException: Can't find scripting engine for 'groovy'
   at org.activiti.engine.impl.scripting.ScriptingEngines.evaluate(ScriptingEngines.java:71)
   at org.activiti.engine.impl.scripting.ScriptingEngines.evaluate(ScriptingEngines.java:64)
   at org.activiti.engine.impl.bpmn.behavior.ScriptTaskActivityBehavior.execute(ScriptTaskActivityBehavior.java:63)
   at org.activiti.engine.impl.pvm.runtime.AtomicOperationActivityExecute.execute(AtomicOperationActivityExecute.java:44)
   at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:87)
   at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:532)
   at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:527)
   at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(AtomicOperationTransitionNotifyListenerStart.java:52)
   at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:56)
   at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:87)
   at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:532)
   at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:527)
   at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:49)
   at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:87)
   at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:532)
   at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:527)
   at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionCreateScope.execute(AtomicOperationTransitionCreateScope.java:49)
   at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:87)
   at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:532)
   at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:527)
   at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionNotifyListenerTake.execute(AtomicOperationTransitionNotifyListenerTake.java:66)
   at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:87)
   at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:532)
   at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:527)
   at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionDestroyScope.execute(AtomicOperationTransitionDestroyScope.java:116)
   at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:87)
   at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:532)
   at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:527)
   at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionNotifyListenerEnd.eventNotificationsCompleted(AtomicOperationTransitionNotifyListenerEnd.java:36)
   at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:56)
   at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:87)
   at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:532)
   at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:527)
   at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:49)
   at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:87)
   at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:532)
   at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:527)
   at org.activiti.engine.impl.persistence.entity.ExecutionEntity.take(ExecutionEntity.java:367)
   at org.activiti.engine.impl.bpmn.behavior.BpmnActivityBehavior.performOutgoingBehavior(BpmnActivityBehavior.java:105)
   at org.activiti.engine.impl.bpmn.behavior.BpmnActivityBehavior.performDefaultOutgoingBehavior(BpmnActivityBehavior.java:54)
   at org.activiti.engine.impl.bpmn.behavior.FlowNodeActivityBehavior.leave(FlowNodeActivityBehavior.java:44)
   at org.activiti.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.leave(AbstractBpmnActivityBehavior.java:47)
   at org.activiti.engine.impl.bpmn.behavior.IntermediateCatchEventActivityBehavior.signal(IntermediateCatchEventActivityBehavior.java:27)
   at org.activiti.engine.impl.persistence.entity.ExecutionEntity.signal(ExecutionEntity.java:350)
   at org.activiti.engine.impl.jobexecutor.TimerCatchIntermediateEventJobHandler.execute(TimerCatchIntermediateEventJobHandler.java:45)
   at org.activiti.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:79)
   at org.activiti.engine.impl.persistence.entity.TimerEntity.execute(TimerEntity.java:62)
   at org.activiti.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:70)
   at org.activiti.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
   at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:61)
   at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:42)
   at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:127)
   at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:40)
   at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:37)
   at org.activiti.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:46)
   at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
   at java.lang.Thread.run(Thread.java:619)

[jbarrez]

Could you try a more recent version? The latest seems to be 2.2.1

[swamy2156]

same issue even using with 2.2.1 version. Interesting thing is that, very occasionally groovy scripts are getting executed by groovy engine. For a fresh deployment of application, for first request, groovy gets executed. for subsequent requests having this issue.

regards,
Swamy.

[trademak]

It should work fine with 2.1.3. Can you create a unit test project showing your problem?

Thanks,

[poseidonjm]

Seems like activity 5.15 and 5.15.1 supports groovy up to 1.8.9

Maven dependencies:
<code>
<dependency>
      <groupId>org.codehaus.groovy</groupId>
      <artifactId>groovy</artifactId>
      <version>1.8.9</version>
    </dependency>
  
</code>
If you change to groovy 2.0.0 the test will fail
org.activiti.engine.ActivitiException: Can't find scripting engine for 'groovy'

Source code from Activiti in Action https://code.google.com/p/activitiinaction/downloads/list
<java>
public class RuntimeServiceTest {

private static RuntimeService runtimeService;

@BeforeClass
public static void init() {
  ProcessEngine processEngine = ProcessEngineConfiguration
   .createStandaloneInMemProcessEngineConfiguration()
    .buildProcessEngine();
 
  RepositoryService repositoryService = processEngine.getRepositoryService();
  repositoryService.createDeployment()
   .addClasspathResource("chapter4/bookorder.bpmn20.xml")
   .deploy();
 
  runtimeService = processEngine.getRuntimeService();
}

@Test
public void startProcessInstance() {
  Map<String, Object> variableMap = new HashMap<String, Object>();
  variableMap.put("isbn", "123456");
  ProcessInstance processInstance = runtimeService.startProcessInstanceByKey("bookorder", variableMap);
  assertNotNull(processInstance.getId());
  System.out.println("id " + processInstance.getId() + " "
    + processInstance.getProcessDefinitionId());
}
 
}
</java>

[trademak]

Okay, could you raise a JIRA for this?

Thanks,

[poseidonjm]

Opened an issue http://jira.codehaus.org/browse/ACT-1984

[poseidonjm]

As Joram Barrez says
https://jira.codehaus.org/browse/ACT-1984

the solutions is change groovy to groovy-all
issue resolved
<code>
<dependency>
      <groupId>org.codehaus.groovy</groupId>
      <artifactId>groovy-all</artifactId>
      <version>2.2.2</version>
    </dependency>
</code>

[ndup0nt]

Same exception (org.activiti.engine.ActivitiException: Can't find scripting engine for 'groovy') still occurs (randomly ?) in Activiti 5.17. Seems to happen with the first instance only of a process.

[jbarrez]

That seems odd. You sure you have groovy-all on the classpath?
Do you have an example of a process where it fails?