RFR 8154587: Resolution fails for default method named 'clone'

Lois Foltan lois.foltan at oracle.com
Mon Dec 4 19:31:01 UTC 2017

Hi Harold,

Fix looks good.  I would like to see three more test cases:

     - the same test written for "finalize" since that is also a 
non-public method of Object.
     - a test where class C does not define the method "clone", an IAE 
should result, correct?
     - a test case where I2 defines a public method of Object


On 11/30/2017 11:15 AM, harold seigel wrote:
> Hi,
> Please review this fix for JDK-8154587.  The fix adds additional 
> special casing to skip over non-public methods in class 
> java.lang.Object during default method and itable processing for 
> interfaces.  These methods need to be skipped over because of the 
> interface method resolution rules in JVM Spec 9, section 
> <https://docs.oracle.com/javase/specs/jvms/se9/html/jvms-5.html#jvms->:
>    3. Otherwise, if the class|Object|declares a method with the name
>    and descriptor specified by the interface method reference, which
>    has its|ACC_PUBLIC|flag set and does not have its|ACC_STATIC|flag
>    set, method lookup succeeds.
> Open Webrev: http://cr.openjdk.java.net/~hseigel/bug_8154587/webrev/
> JBS Bug:  https://bugs.openjdk.java.net/browse/JDK-8154587
> The fix was tested with JCK lang and VM tests, JTReg hotspot and many 
> JTReg JDK tests, M5 tier1 - tier5 tests, and JPRT.
> Thanks, Harold

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