JDK-8071453 : Allow interface methods to be private
  • Type: Enhancement
  • Component: tools
  • Sub-Component: javac
  • Affected Version: 9
  • Priority: P4
  • Status: Closed
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 2015-01-23
  • Updated: 2022-06-17
  • Resolved: 2015-03-02
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JDK 9
9 b54Fixed
Related Reports
Duplicate :  
JDK-8005172 - Add support for private interface methods in interfaces
Relates :  
JDK-8074282 - Finder framework should suggest places for using private interface methods in lieu of private nested classes
Relates :  
JDK-8165827 - Support private interface methods in JNI, JDWP, JDI and JDB
Relates :  
JDK-8194998 - broken error message for subclass of interface with private method
Relates :  
JDK-8194847 - javac generates bad code for private method in interface super call
Relates :  
JDK-8081800 - AbstractMethodError when evaluating a private method in an interface via debugger
Relates :  
JDK-8042880 - JEP 213: Milling Project Coin
Sub Tasks
JDK-8072872 :  
9.4: Allow interface methods to be 'private' - Closed
Description
During the definition & development of Java 8, as a part of the Lambda expressions support Umbrella JSR
(https://bugs.openjdk.java.net/browse/JDK-7115044)  there existed experimental support to allow interface methods being private. However this experimental feature didn't make the final cut.

As part of https://bugs.openjdk.java.net/browse/JDK-8042880 targeted for Java SE 9, we would like to 
resurrect support for this feature.
Comments
URL: http://hg.openjdk.java.net/jdk9/jdk9/langtools/rev/592d64800143 User: lana Date: 2015-03-11 02:21:17 +0000
11-03-2015
URL: http://hg.openjdk.java.net/jdk9/dev/langtools/rev/592d64800143 User: mcimadamore Date: 2015-03-02 11:25:57 +0000
02-03-2015
Having an old implementation that I can resurrect from the archives was very helpful. For the record here are the changes/fixes made in addition: - Support for static private methods was added. - Attempts to declare a private method that is override equivalent with a super inferface's public method is caught and reported as an error. (attempting to assign "weaker" access privileges) - Accessors emitted into interfaces are tagged as public as required by the VM. - Code massaged to use the new diagnostics framework. - Added several more tests. - Assorted minor clean ups.
02-03-2015