ScriptRunner "Add/Remove from Sprint" crashes with "Cannot invoke method left() on null object"

[Szpecku]

On Jira Server v8.0.2, using ScriptRunner 5.7.2-p5 I tried to use a built-in post function workflow script to add a ticket to active sprint, but it always fails with the following error

java.lang.NullPointerException: Cannot invoke method left() on null object
	at com.onresolve.scriptrunner.canned.jira.utils.agile.AddRemoveFromSprint.execute(AddRemoveFromSprint.groovy:260)
	at com.onresolve.scriptrunner.canned.jira.utils.agile.AddRemoveFromSprint$execute$2.call(Unknown Source)
	at com.onresolve.scriptrunner.canned.jira.workflow.postfunctions.AddRemoveFromSprintProxy.execute(AddRemoveFromSprintProxy.groovy:79)
	at com.onresolve.scriptrunner.canned.jira.workflow.postfunctions.AddRemoveFromSprintProxy$execute$1.callCurrent(Unknown Source)
	at com.onresolve.scriptrunner.canned.jira.workflow.AbstractWorkflowCannedScript.execute(AbstractWorkflowCannedScript.groovy:18)
	at com.onresolve.scriptrunner.canned.jira.workflow.AbstractWorkflowCannedScript$execute$0.call(Unknown Source)
	at com.onresolve.scriptrunner.jira.workflow.AbstractScriptWorkflowFunction$_run_closure1.doCall(AbstractScriptWorkflowFunction.groovy:93)
	at com.onresolve.scriptrunner.jira.workflow.AbstractScriptWorkflowFunction$_run_closure1.doCall(AbstractScriptWorkflowFunction.groovy)
	at com.onresolve.scriptrunner.runner.diag.DiagnosticsManagerImpl$DiagnosticsExecutionHandlerImpl.execute(DiagnosticsManagerImpl.groovy:314)
	at com.onresolve.scriptrunner.runner.diag.DiagnosticsExecutionHandler$execute$3.call(Unknown Source)
	at com.onresolve.scriptrunner.jira.workflow.AbstractScriptWorkflowFunction.run(AbstractScriptWorkflowFunction.groovy:86)

 I'm new to ScriptRunner and I wonder is there any way to see what AddRemoveFromSprint.groovy looks like?

So far following another example which uses `left` method as well, so I assume it has something in common with AddRemoveFromSprint script:

import com.atlassian.jira.component.ComponentAccessor;
import com.atlassian.greenhopper.service.rapid.view.RapidViewService;
import com.atlassian.greenhopper.service.rapid.RapidViewQueryService;
import com.atlassian.greenhopper.model.rapid.RapidView;

import com.atlassian.greenhopper.service.sprint.Sprint;
import com.atlassian.greenhopper.service.sprint.SprintManager;

def sprintManager = ComponentAccessor.getOSGiComponentInstanceOfType(SprintManager.class);
def rapidViewService = ComponentAccessor.getOSGiComponentInstanceOfType(RapidViewService.class);
def rapidViewQueryService = ComponentAccessor.getOSGiComponentInstanceOfType(RapidViewQueryService.class);

def board_id = 10L;

def sprints = [];
def sprints_two = [];

import com.atlassian.jira.component.ComponentAccessor

def userManager = ComponentAccessor.getUserManager()

def user = userManager.getUserByKey("user.name")

def view = rapidViewService.getRapidView(user, board_id).getValue();

if (view != null)
{
sprints = rapidViewQueryService.getOpenSprintsAndBacklogProjects(user, view).getValue().left(); 
}

 I have confirmed that board_id is correct and matches the one I tried to use in the built-in script as well and above code returns correct sprint.

I will really appreciate any help as well as guidance is it possible to check built-in scripts code somewhere.

[Szpecku · Accepted solution]

I ended up using Custom post-function script:

import com.atlassian.greenhopper.service.rapid.view.RapidViewService
import com.atlassian.greenhopper.service.sprint.Sprint
import com.atlassian.greenhopper.service.sprint.SprintIssueService
import com.atlassian.greenhopper.service.sprint.SprintManager
import com.atlassian.jira.component.ComponentAccessor
import com.onresolve.scriptrunner.runner.customisers.JiraAgileBean
import com.onresolve.scriptrunner.runner.customisers.WithPlugin

@WithPlugin( "com.pyxis.greenhopper.jira" )

@JiraAgileBean
RapidViewService rapidViewService

@JiraAgileBean
SprintIssueService sprintIssueService

@JiraAgileBean
SprintManager sprintManager

// Enter the name of the board to which you want to add the issue to the first active sprint
def rapidBoardId = 8L

def loggedInUser = ComponentAccessor.getJiraAuthenticationContext().getLoggedInUser()
def view = rapidViewService.getRapidView( loggedInUser, rapidBoardId ).getValue()

if( !view )
{
    log.warn( "No view with this ID found" )
    return
}

def sprints = sprintManager.getSprintsForView( view ).getValue()

def activeSprints = sprints
        .findAll { it.active }
        .sort { sprint_1, sprint_2 ->
            sprint_1.getStartDate().isAfter( sprint_2.getStartDate() ) ? -1 : 1
        } ?: new ArrayList<Sprint>()

if( activeSprints.size() > 0 )
{
    def sprint = activeSprints[0]
    log.info "Adding issue $issue to ${sprint.name}"
    sprintIssueService.moveIssuesToSprint( loggedInUser, sprint, [issue] as Collection )
}
else
{
    log.info( "No active sprints were found for board: ${view.name}" )
}

 Full credit should go to @Alexey Matveev _Appfire_ - I have copied and modified his script he posted here