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https://issues.apache.org/jira/browse/GROOVY-8454?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jochen Theodorou resolved GROOVY-8454.
--------------------------------------
Resolution: Not A Problem
> Method with wrong argument typed is called when passing 'null'
> --------------------------------------------------------------
>
> Key: GROOVY-8454
> URL: https://issues.apache.org/jira/browse/GROOVY-8454
> Project: Groovy
> Issue Type: Bug
> Affects Versions: 2.4.3
> Reporter: Marek Baluch
> Assignee: Jochen Theodorou
> Priority: Major
>
> The output of the following code is 'Map: null' instead of 'String: null'
> {code:java}
> class Stat {
> def static m(String s) {
> println 'String: ' + s
> }
> def static m(Map m) {
> println 'Map: ' + m
> }
> }
> class Main {
> def run() {
> String n = null
> Stat.m(n)
> }
> def static void main(String ... args) {
> new Main().run()
> }
> }
> {code}
> To get the correct output I must explicitly cast the null value to String.
> {code:java}
> Stat.m((String)n)
> {code}
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