Bug ID: JDK-6520152 ACC_FINAL flag for anonymous classes shouldn't be set

JDK-6520152 : ACC_FINAL flag for anonymous classes shouldn't be set

Type: Bug
Component: tools
Sub-Component: javac
Affected Version: 6,6u26

Priority: P2
Status: Closed
Resolution: Fixed
OS: generic,linux
CPU: generic,x86

Submitted: 2007-02-01
Updated: 2017-05-16
Resolved: 2011-05-17

Versions (Unresolved/Resolved/Fixed)

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Resolved: Release in which this issue/RFE has been resolved.
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JDK 6	JDK 7	Other
6u4Fixed	7 b18Fixed	OpenJDK6Resolved

Related Reports

Duplicate :	JDK-7064370 - Anonymous inner class in incorrectly non-public
Relates :	JDK-8130032 - Anonymous inner class is not final
Relates :	JDK-8161009 - 15.9.5: Anonymous classes aren't actually 'final'
Relates :	JDK-8161013 - Never treat anonymous classes as 'final'
Relates :	JDK-4777101 - final treatment of anonymous classes not marked in .class files?
Relates :	JDK-6219964 - Compiler allows illegal cast of anonymous inner class
Relates :	JDK-8034044 - Class.getModifiers() returns "static" for anonymous classes
Relates :	JDK-8129576 - Anonymous classes are not final according to reflection API

Description

ACC_FINAL flag for an anonymous class was unset since JDK 1.3. This has 
been changed in JDK 6 after bug 6219964 was fixed. For compatibility reason, 
ACC_FINAL flag for anonymous classes should remain unset. See bug 4777101 for 
more information.

Comments

SUGGESTED FIX Webrev is attached. It's also available at: http://sa.sfbay.sun.com/projects/langtools_data/7/6520152/

20-07-2007

EVALUATION This is a regression introduced when bug 6219964 was fixed. JLS 15.9.5 states that "An anonymous class is always implicitly final", which means that an anonymous class cannot be subclassed. However, at class file level, we will keep ACC_FINAL for anonymous classes unset to maintain compatibility with earlier releases.

01-02-2007