Test case java_nio/Channel/FileChannel/FCmap is failing for JDK 1.4.2_13b01 but passing for JDK 1.4.2_12b03, so this is a regression. This issue appears on specific platform : Solaris10/amd. The following exception is thrown :

bash-3.00# less FCmap.err
TestFailException: mapTest02 (file size=7368676) FAIL: MappedByteBuffer contents do not match original data!
        at TestHelper.testFail(TestHelper.java:70)
        at FCmap.mapTest02(FCmap.java:349)
        at FCmap.go(FCmap.java:87)
        at FCmap.main(FCmap.java:60)

How to reproduce :

Test suite location :
/net/vice.russia/export/home0/dtf/dtf_ws/suites/142_Suites/142_Libs/


1. In DTF mode. Sample job file :
<testrequest priority="100"> -*-html-*-
 <jdk dir="/export/home/JDK/j2sdk1.4.2_13/" runtime=""/>
 <jobname jobname="1.4.2_13b01-libs-Sol10"/>
 <suitename suitename="142_Suites"/>
 <user-defs key="J2SE_COMPONENT_DIR" value="142_Libs" />
 <user-defs key="TESTLIST" value="142_13.sol10amd" />
 <results dir="" emailto="###@###.###" subject="142_Libs DTF"/>
 <attr key="network.name" value="chairman" />
</testrequest>

2. In standalone mode. Sample TongaSetup.ini file :
JAVA_HOME=/export/home/JDK/j2sdk1.4.2_13/
GOLDEN_BUILD_HOME=/export/home/JDK/j2sdk1.4.2_13/
export GOLDEN_BUILD_HOME
TESTBASE=/net/vice.russia/export/home0/dtf/dtf_ws/suites/142_Suites/142_Libs
TESTLIST=/net/vice.russia/export/home0/dtf/dtf_ws/suites/142_Suites/142_Libs/testlist/testlist.mantis.dev
TONGA_EXCLUDE=/net/vice.russia/export/home0/dtf/dtf_ws/suites/142_Suites/142_Libs/testlist/testlist.exclude
WORKDIR=/export/home/JQA/ts142/libs/
JAVA_OPTS=
TESTTYPE=Command
CLASSPATH=/export/home/JDK/j2sdk1.4.2_13/jre/lib/rt.jar:/net/vice.russia/export/home0/dtf/dtf_ws/suites/142_Suites/142_Libs/classes
export CLASSPATH
JAVA=/export/home/JDK/j2sdk1.4.2_13/jre/bin/java
JAVAC=/export/home/JDK/j2sdk1.4.2_13/bin/javac -source 1.4
APPLETVIEWER=/export/home/JDK/j2sdk1.4.2_13/bin/appletviewer
JRE=/export/home/JDK/j2sdk1.4.2_13/jre
export JRE
export APPLETVIEWER
TONGA_REMOVE=NONE
TIMEOUT=30
DISPLAY=:0.0
export DISPLAY
KSH=/usr/bin/ksh
export KSH

You can use UR group test machine. Details are in comments section.

Thanks for your attention.
This is failing on Sol10-sparc also