javac erroneously throws up rawtypes warning for use of diamond operator

[Joe Darcy]

Andrew John Hughes wrote:
> Building with the latest http://hg.openjdk.java.net/jdk7/jdk7 checkout
> (b94) with either OpenJDK6 or OpenJDK7 and JAVAC_MAX_WARNINGS:
>
> # Running javac:
> /home/andrew/build/icedtea7/bin/java -XX:-PrintVMOptions
> -XX:+UnlockDiagnosticVMOptions -XX:-LogVMOutput -Xmx896m -Xms128m
> -XX:PermSize=32m -XX:MaxPermSize=160m
> -Xbootclasspath/p:/mnt/builder/jdk7/langtools/dist/bootstrap/lib/javac.jar
> -jar /mnt/builder/jdk7/langtools/dist/bootstrap/lib/javac.jar
> -Xlint:all -source 7 -target 7 -encoding ascii
> -Xbootclasspath:/mnt/builder/jdk7/classes -Xlint:serial,-deprecation
> -Werror -sourcepath
> /mnt/builder/jdk7/gensrc:../../../src/solaris/classes:../../../src/share/classes
> -d /mnt/builder/jdk7/classes
> @/mnt/builder/jdk7/tmp/sun/sun.nio/.classes.list.filtered
> ../../../src/share/classes/sun/io/CharacterEncoding.java:57: warning:
> [rawtypes] found raw type: HashMap
>         aliasTable = new HashMap<>(460, 1.0f);                    /* MDA */
>                                 ^
>
>   

[snip]
> Note: Some input files use or override a deprecated API.
> Note: Recompile with -Xlint:deprecation for details.
> 1 error
> 6 warnings
>
> When:
>
> changeset:   2116:7dadd2951a8b
> user:        andrew
> date:        Tue Feb 02 10:55:07 2010 +0000
> summary:     6921740: Eliminate warnings from sun.io converters and
> allow compiling with JAVAC_MAX_WARNINGS=true
>
> was first applied to add these diamond operators and remove the
> original raw types, javac could compile these classes successfully.
> So javac seems to have regressed since then.
>   

I believe the fix for 6951833 "latest diamond implementation generates 
spurious raw type warnings" will address this problem:
http://hg.openjdk.java.net/jdk7/tl/langtools/rev/1d587ef8bf56

The fix is currently in TL, but not yet in the master.

-Joe