The following JCK1.3 test fails on Linux RedHat 6.2, Sparc Solaris and Windows:
api/java_awt/Font/descriptions.html#IsXXXX

To reproduce the bug, run script below
You may need to set JCK and JAVA_HOME.

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#!/bin/sh
SWITCH="$@"
JAVA_HOME=/usr/local/java/jdk1.4/linux-i386
JCK=/net/orthello/home2/JCK-13
CLASSPATH=$JCK/classes:$JCK/javatest.jar
export CLASSPATH
executeClass="javasoft.sqe.tests.api.java.awt.Font.IsXXXXTests -TestCaseID ALL"

$JAVA_HOME/bin/java ${SWITCH} -version
$JAVA_HOME/bin/java ${SWITCH} -Xfuture -Djava.security.policy=${JCK}/lib/jck.policy ${executeClass}
RESULT="$?"
if [ $RESULT = 95 ]; then
 echo Test passed
elif [ $RESULT = 97 ]; then
 echo Test failed
else
 echo Result is $RESULT
fi

------------------------------------ output ------------------------------------------

java version "1.4.0beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0beta-b40)
Java HotSpot(TM) Client VM (build 1.4beta-B40, mixed mode)
f= java.awt.Font[family=Helvetica,name=Name,style=plain,size=1]; f.isPlain()=true; f.isBold()=false; f.isItalic()=false
f= java.awt.Font[family=Helvetica,name=Name,style=bold,size=1]; f.isPlain()=false; f.isBold()=true; f.isItalic()=false
f= java.awt.Font[family=Helvetica,name=Name,style=italic,size=1]; f.isPlain()=false; f.isBold()=false; f.isItalic()=true
f= java.awt.Font[family=Helvetica,name=Name,style=bolditalic,size=1]; f.isPlain()=false; f.isBold()=true; f.isItalic()=true
Font2009: Passed. OKAY
f= java.awt.Font[family=Helvetica,name=NewName,style=plain,size=5]; f.isPlain()=true; f.isBold()=false; f.isItalic()=false
Font0004: Failed. failed (1)
STATUS:Failed. tests: 2; passed: 1; failed: 1; first test case failure: Font0004
Test failed

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