Github user baybatu commented on the pull request:
https://github.com/apache/groovy/commit/3ed1c5c48e97007c83404149764b1163dcaf39e3#commitcomment-18601444
In src/main/org/codehaus/groovy/runtime/DefaultGroovyMethods.java:
In src/main/org/codehaus/groovy/runtime/DefaultGroovyMethods.java on line
3059:
It would be better to put this argument check beginning of the method -as
'guard-clause'- without creating ArrayList objects at the beginning of the
method.
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