regression java/nio/charset/Charset/NIOCharsetAvailabilityTest.java fails on 6u14b04

regression test suite
test: java/nio/charset/Charset/NIOCharsetAvailabilityTest.java
platform: x86
os: solaris10
test fails on 6u14b04 and passed on 6u14b03, so it's build to build regression
test fails with:

Unused Charset subclass: sun.nio.cs.ext.IBM1364
Exception in thread "main" java.lang.RuntimeException
        at NIOCharsetAvailabilityTest.main(NIOCharsetAvailabilityTest.java:58)

test has header:

/*
 * @test 1.4 02/17/05
 * @bug 4777124
 * @summary Verify that all Charset subclasses are available through the API
 */


for reproduce login at stt-12.russia as stt-robot

[stt-robot@stt-12]$ pwd
/export/JQA/regression/6u14b04
[stt-robot@stt-12]$ /export/jdk/jdk1.6.0_14b04/bin/java -version
java version "1.6.0_14-ea"
Java(TM) SE Runtime Environment (build 1.6.0_14-ea-b04)
Java HotSpot(TM) Server VM (build 14.0-b13, mixed mode)
[stt-robot@stt-12]$ /export/jdk/jdk1.6.0_14b04/bin/javac NIOCharsetAvailabilityTest.java
NIOCharsetAvailabilityTest.java:23: warning: sun.misc.Launcher is Sun proprietary API and may be removed in a future release
import sun.misc.Launcher;
               ^
NIOCharsetAvailabilityTest.java:69: warning: sun.security.action.GetPropertyAction is Sun proprietary API and may be removed in a future release
             new sun.security.action.GetPropertyAction("sun.boot.class.path"));
                                    ^
NIOCharsetAvailabilityTest.java:72: warning: sun.security.action.GetPropertyAction is Sun proprietary API and may be removed in a future release
             new sun.security.action.GetPropertyAction("java.class.path"));
                                    ^
NIOCharsetAvailabilityTest.java:90: warning: sun.misc.Launcher is Sun proprietary API and may be removed in a future release
        ClassLoader appLoader = Launcher.getLauncher().getClassLoader();
                                ^
Note: NIOCharsetAvailabilityTest.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
4 warnings
[stt-robot@stt-12]$ /export/jdk/jdk1.6.0_14b04/bin/java NIOCharsetAvailabilityTest
Unused Charset subclass: sun.nio.cs.ext.IBM1364
Exception in thread "main" java.lang.RuntimeException
        at NIOCharsetAvailabilityTest.main(NIOCharsetAvailabilityTest.java:58)
[stt-robot@stt-12]$ /export/jdk/jdk1.6.0_14b03/bin/javac NIOCharsetAvailabilityTest.java
NIOCharsetAvailabilityTest.java:23: warning: sun.misc.Launcher is Sun proprietary API and may be removed in a future release
import sun.misc.Launcher;
               ^
NIOCharsetAvailabilityTest.java:69: warning: sun.security.action.GetPropertyAction is Sun proprietary API and may be removed in a future release
             new sun.security.action.GetPropertyAction("sun.boot.class.path"));
                                    ^
NIOCharsetAvailabilityTest.java:72: warning: sun.security.action.GetPropertyAction is Sun proprietary API and may be removed in a future release
             new sun.security.action.GetPropertyAction("java.class.path"));
                                    ^
NIOCharsetAvailabilityTest.java:90: warning: sun.misc.Launcher is Sun proprietary API and may be removed in a future release
        ClassLoader appLoader = Launcher.getLauncher().getClassLoader();
                                ^
Note: NIOCharsetAvailabilityTest.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
4 warnings
[stt-robot@stt-12]$ /export/jdk/jdk1.6.0_14b03/bin/java NIOCharsetAvailabilityTest
[stt-robot@stt-12]$ /export/jdk/jdk1.6.0_14b03/bin/java -version
java version "1.6.0_14-ea"
Java(TM) SE Runtime Environment (build 1.6.0_14-ea-b03)
Java HotSpot(TM) Server VM (build 14.0-b12, mixed mode)
[stt-robot@stt-12]$