Null object when calling getFixVersions()

[Vivian Escalante]

So I get "Cannot invoke method getFixVersions() on null object" when applied to an issue -> issue.getFixVersions(). Anyone know why? I thought it would return empty if there's nothing. 

[Alexey Matveev]

The problem is that the issue variable is null. How do you call the script and how you initialize the issue variable?

[Vivian Escalante]

Hello, 

Thank you for answering! 

I initialize the variable this way: 

Collection<Version> parentFixVersions = new ArrayList<Version>()

and then set it parentFixVersions = issue.getFixVersions()

I tried to catch the error so, 

if (parentFixVersions == null)

{log.warn("Null Object")} 

But it still gives me the error. 

I'm running this through script runner. 

[Alexey Matveev]

As far as I understand from your previous message the problem was with the issue variable. How do you initialize the issue variable? Where do you run the script?