/usr/bin/js : rhino

$ js
Error occurred during initialization of VM
java/lang/NoClassDefFoundError: java/lang/Object

Solution:
# vim /usr/bin/js
Remplacer:
        JAVA_OPTS="-Xbootclasspath:/usr/lib/jvm/java-6-openjdk/jre/lib/rt.jar"
Par:
        JAVA_OPTS="-Xbootclasspath:/usr/lib/jvm/java-6-openjdk-amd64/jre/lib/rt.jar"

$ js
Rhino 1.7 release 3 2011 06 12
js>