[jira] [Created] (GROOVY-8454) Method with wrong argument typed is called when passing 'null'

["Marek Baluch (JIRA)" <ji...@apache.org>]

Marek Baluch created GROOVY-8454:
------------------------------------

             Summary: 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


The output of the following code is 'Map:  null' instead of 'String: null'
{code:java}
def class Stat {

    def static m(String s) {
        println 'String: ' + s
    }

    def static m(Map m) {
        println 'Map: ' + m
    }

}

def 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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