Link Issue with groovy returning java.lang.NullPointerException

[nkosi mbokazi]

HI,

im having issues with a script of Linking issues to another in a post function.

On some it returned a positive result and mostly it returns a null pointer exception. Below is my code: 

def fff = issue
def desc = issue.description
def reg = desc.find("(?i)WSM-[0-9][0-9][0-9][0-9]")

def issueManager = ComponentAccessor.getIssueManager()
def issue = issueManager.getIssueByKeyIgnoreCase(reg)

String ioio = issue

def issueObject = issueManager.getIssueObject(ioio)

def ComponentManager componentManager = ComponentManager.getInstance();
def issueLinkManager = ComponentAccessor.getIssueLinkManager();
def issueLinkTypeManager = componentManager.getComponentInstanceOfType(IssueLinkTypeManager.class);
def issueLT = issueLinkTypeManager.getIssueLinkType(11203);

def authContext = ComponentAccessor.getJiraAuthenticationContext()

def User = authContext.getLoggedInUser()

def linkID = issueLT.getId()

issueLinkManager.createIssueLink(issueObject.getId(), fff.getId(), (linkID), Long.valueOf(0), User)

 this is the result: 

There was an error during the execution of your script

Message:

java.lang.NullPointerException

Stack:

com.atlassian.jira.issue.link.DefaultIssueLinkManager.getIssueLink(DefaultIssueLinkManager.java:381)
com.atlassian.jira.issue.link.DefaultIssueLinkManager.createIssueLink(DefaultIssueLinkManager.java:89)
com.atlassian.jira.issue.link.IssueLinkManager$createIssueLink$0.call(Unknown Source)
org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
script15308646575551046973837.run(script15308646575551046973837.groovy:47)
com.innovalog.groovy.GroovyExpression.testScript(GroovyExpression.java:228)
com.innovalog.groovy.rest.GroovySupportRestApi.testScript(GroovySupportRestApi.java:212)
sun.reflect.GeneratedMethodAccessor6022.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:498)

thank you 

[MoroSystems Support]

Hello Nkosi,

in cases like this I would recommend you take a look into Jira source files. It is important to check the exact version of source files matching your running instance. I tried to check your problem on my 7.5.2 sources and it looks like there are some existing invalid links that don't have destination or linkType specified.

When I look at your script, I see that you are trying to create links from an issue to itself. Is it good? Couldn't this cause some inconsistencies in data that result in NullPointerException?

Regards,
Martin