Bug ID: JDK-6924100 2 Charset tests failed with NPE with 1.4.2

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Other	Other	Other
1.4.2_25-rev b04Fixed	1.4.2_26-revFixed	1.4.2_27Fixed

The following 2 test failed with nightly build 1.4.2_25
java_nio/Charsets/CharsetProviderTest
java_io/CharacterEncoding/NIOCharsetAvailabilityTest
Exception message:

Exception in thread "main" java.lang.NullPointerException
        at java.nio.charset.Charset.put(Charset.java:495)
        at java.nio.charset.Charset.access$300(Charset.java:245)
        at java.nio.charset.Charset$4.run(Charset.java:534)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.nio.charset.Charset.availableCharsets(Charset.java:527)
        ...


JDK/JRE tested:   1.4.2_25-rev-b00 nightly build
OS/architecture: all
Reproducible: always
Reproducible on machine: stt-37
Is it a Regression: Y
Test run log location:
http://vice.russia.sun.com/gtee/1.4.2_25/nightly/b00-2010-02-04_j4b/linux-i586/libs/linux-i586-nightly/libs_stt-nightly_linux-i586-nightly/ResultDir/CharsetProviderTest/

http://vice.russia.sun.com/gtee/1.4.2_25/nightly/b00-2010-02-04_j4b/linux-i586/libs/linux-i586-nightly/libs_stt-nightly_linux-i586-nightly/ResultDir/NIOCharsetAvailabilityTest/

Steps to reproduce:
#ssh ###@###.###
#cd /export/local/48825.1.4.2_Nightly-STT+libs_stt-nightly_linux-i586-nightly/results/ResultDir/CharsetProviderTest
# sh CharsetProviderTest.sh

Relates :	JDK-4116222 - Errors in Arabic code-conversion tables, part II
Relates :	JDK-6896219 - (fc) FileChannel.transferTo to DatagramChannel fails with "Operation not supported" (sol)
Relates :	JDK-2177393 - Errors in Arabic code-conversion tables, part II
Relates :	JDK-6907974 - (cs) Charset.availableCharsets throws NPE if "non-standard" charset is not present