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  1. Groovy
  2. GROOVY-7879

Groovy calls wrong method if there is a static method on an interface

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.4.7
    • Fix Version/s: 2.4.11
    • Component/s: Compiler
    • Labels:
      None

      Description

      If there is an interface having the static method foo and a class Impl implementing this interface also having a static method foo, then calling Impl.foo() calls the method on the interface. For an easy self contained example have a look at https://github.com/wolfs/groovy-static-interface-method-test/blob/master/src/test/groovy/StaticInterfaceTest.groovy.

      This can yield class cast exceptions on Java 8 and from Java 9 build 125 onwards this yields

      java.lang.IncompatibleClassChangeError: Method ... must be InterfaceMethodref constant
      

      This verification has been introduced here: https://bugs.openjdk.java.net/browse/JDK-8145148.

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              • Assignee:
                paulk Paul King
                Reporter:
                wolfs Stefan Wolf
              • Votes:
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                • Created:
                  Updated:
                  Resolved: