Don't use Groovy's withDefault
as it can lead to NPEs
#37726
Merged
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Closes #37061
We used to use a map and
[:].withDefault{key -> return []}
, then we dorequiredJavaVersions.get(version).add(task)
on the line where we got thenull
form the get call.The get should return an empty list instead of null, but this doesn't seem to be the case. Relevant SO: https://stackoverflow.com/questions/24738903/creating-map-using-withdefault-causing-null-when-putting-element