Jikes 1.19 released

[Mark Wielaard]

Hi all,

The Jikes compiler hackers made a new release.
Some interesting new improvements:

        Command line options have been improved.
        
        Some pedantic warnings are controlled by name, so that you can
        select which warnings you get (for example, not everyone wants
        to know that 1L is preferred over 1l when writing a long
        literal).
        
        More switches have long names.
        
        Default state of switches now printed with --help.
        
        New switch -Xswitchcheck: Warn about fallthrough in switch
        statements (compatible with javac).
        
        New switch +Pnaming-convention: Warn about naming choices that
        violate Java's naming conventions. This switch is currently ON
        by default, +Pno-naming-convention will disable it for sites
        that use a different naming convention.
        
        New switch --noassert: Omits assertions from .class files (not
        recommended for normal development, but provided to allow you to
        do -source 1.4 -target 1.3).
        
        Now supports -target 1.4.2 (compatible with javac, no changes
        from -target 1.4 in emitted code).
        
        Error text has been improved for method calls, to list the
        parameter types the compiler is trying to match. Error text on
        duplicate declarations tries harder to list the original
        declaration.
        
        Static checks have been added for a variety of common Java
        mistakes, including empty catch and finally blocks, accidental
        overloading of the equals method, classes implementing equals
        but not hashCode (or the other way around), interfaces used as
        enums, missing private constructors to prevent instantiation of
        utility classes, overly-general throws clauses, public static
        final array fields, returning null instead of a zero-length
        array, and deviations from standard Java naming conventions.

See/Get it here:
http://www-124.ibm.com/developerworks/downloads/detail.php?group_id=10&what=rele&id=686

If you have time, please try it out on GNU Classpath and see if these
new warnings point out anything interesting. You want to add
+Pno-naming-convention since the new jikes otherwise generates lots and
lots of warnings.

Cheers,

Mark

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