workflow error

Question

I am creating a workflow to assign the role to the user at community and domain level. But I am getting the below error. Params: [role_assigment] Message: org.flowable.common.engine.api.FlowableException: problem evaluating script: javax.script.ScriptException: java.lang.NullPointerException: Cannot invoke method getRole() on null object at com.collibra.dgc.core.workflow.activiti.WorkflowEngineImpl.lambda$createProcessInstanceExecutor$6(WorkflowEngineImpl.java:488) at com.collibra.dgc.core.workf...

arthurburkhardt · Answer

whew, quite some issues to unpack. Coaching would probably the best way to go.

I had a quick glance, here are some obvious problems: community_id is a UUID, but you use it as a name, cast to a string (with a leading space???), try to fetch an “id” property from that string, then pass an array instead of a UUID to the AddResponsibilityRequest.

That… that won’t work.

If I can find 5 issues in less than 30 seconds, I would say there are probably other issues with the code.
I would recommend to:

get coaching to go through the workflow
use autocomplete in an IDE to check the code
ensure that all methods are used correctly (passing the right data types in methods, checking that methods exist)
iterate with bits of code: modularize your code and test each block separately before assembling everything together.

ankursingh1 · Answer

@arthur.burkhardt I am attaching the cod e. There is issue with add responsibility code. I am fetching the user community and role details from the dropdown list. Could you please check and help me for the same. role.txt (9.8 KB)

arthurburkhardt · Answer

Sorry, difficult to read your code because of formatting. Can you please use proper markdown formatting?

```
Role reviewerRole
List foundRoles = roleApi.findRoles(FindRolesRequest.builder()
  .name([role_Id])
  .nameMatchMode(MatchMode.EXACT)
  .build()).getResults()
```

Will result in

Role reviewerRole
List foundRoles = roleApi.findRoles(FindRolesRequest.builder()
  .name([role_Id])
  .nameMatchMode(MatchMode.EXACT)
  .build()).getResults()

ankursingh1 · Answer

@arthur.burkhardt I am using the drop down list. to get the user name , role and community.

Using the below code to get the user id details its is working…
originalUserObj = userApi.getUserByUsername(user_id)

USing this code to fetch the role details. It also working

Role reviewerRole
List foundRoles = roleApi.findRoles(FindRolesRequest.builder().name([role_Id]).nameMatchMode(MatchMode.EXACT).build()).getResults()

====
using the below code to get community details… Its also working used the logger

communitySearch = communityApi.findCommunities(FindCommunitiesRequest.builder().name(community_id).nameMatchMode(MatchMode.END).limit(10000).build()).getResults()

Now issue with the code

addResponsibilitiesList = []

                    for(role in roleNames){

addResponsibilitiesList.add(responsibilityApi.addResponsibility(AddResponsibilityRequest.builder()
.ownerId(userApi.getUserByUsername(user_id).getId())
.resourceId(userCommunityId)
.resourceType(userCommunityName)
.roleId(getRolId(role ) )
.build()))
}

getting below error–
Params: [role_assigment]
Message: org.flowable.common.engine.api.FlowableException: problem evaluating script: javax.script.ScriptException: groovy.lang.MissingMethodException: No signature of method: java.lang.String.getId() is applicable for argument types: () values: []
Possible solutions: getAt(int), getAt(groovy.lang.IntRange), getAt(groovy.lang.EmptyRange), getAt(groovy.lang.IntRange), getAt(groovy.lang.Range), getAt(groovy.lang.Range)

================

arthurburkhardt · Answer

@ankur.singh1.genpact.com
You should not look up the role ID, you should define it in your startForm:

Better performance
Better reliability
Dependency management when using migration

Also, you code will fail if the role “Reviewer” is not found (e.g. renamed).

But your code should run with

Role reviewerRole
List foundRoles = roleApi.findRoles(FindRolesRequest.builder().name(“Reviewer”).nameMatchMode(MatchMode.EXACT).build()).getResults()
if (!foundRoles.isEmpty()) {
reviewerRole = foundRoles.get(0)
}

responsibilityApi.addResponsibility(AddResponsibilityRequest.builder()
	.roleId(reviewerRole.id)
	.ownerId(originalUserObj.getId())
	.build()
)

1	Grant Rollerson SUNCORP CORPORATE SERVICES PTY LTD
2	Tom Friesen Algonquin College
3	SB S Benson Plus3 IT
4	S stefan_busch
5	Brian Lloyd USA TODAY Co.
6	D daverichard

workflow error

Using the below code to get the user id details its is working… originalUserObj = userApi.getUserByUsername(user_id)

communitySearch = communityApi.findCommunities(FindCommunitiesRequest.builder().name(community_id).nameMatchMode(MatchMode.END).limit(10000).build()).getResults()

Using the below code to get the user id details its is working…
originalUserObj = userApi.getUserByUsername(user_id)