java.class.path is displayed twice in javaplugin.vm.options property of Java Console

Tested OS : Solaris, Linux
Tested Browser : mozilla

Steps to reproduce :

1. Install mustang build 21
2. Install mozilla browser
3. Register mustang plugin in mozilla
4. Launch mozilla
5. Launch Tools->Web Development->Java Console
6. Press 's' key to get system and deployment properties
7. Look into system properies

When it shows the value for propery javaplugin.vm.options, the value of java.class.path is getting printed twice

sample content :

"javaplugin.vm.options = -DtrustProxy=true -Xverify:remote -Djava.class.path=/tmp/malathi/jdk1.6.0/jre/classes -Djava.class.path=/tmp/malathi/jdk1.6.0/jre/classes -Djava.protocol.handler.pkgs=sun.plugin.net.protocol -Xbootclasspath/a:/tmp/malathi/jdk1.6.0/jre/lib/plugin.jar:/tmp/malathi/jdk1.6.0/jre/lib/deploy.jar:/tmp/malathi/jdk1.6.0/jre/lib/javaplugin_l10n.jar -Djavaplugin.lib=/tmp/malathi/jdk1.6.0/jre/lib/sparc/libjavaplugin_jni.so -Dmozilla.workaround=true -Djavaplugin.nodotversion=160 -Djavaplugin.version=1.6.0"


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