If I place a single class file in a zip archive and run the java launcher on that class, it crashes. This is a regression with respect to 1.2.2.

For example (note that trivial.zip is attached to this bug report):

- this works fine

/home/gordonh/work> /usr/local/java/jdk1.2.2/solaris/bin/java -version
java version "1.2.2"
Classic VM (build JDK-1.2.2-U, green threads, sunwjit)
/home/gordonh/work> /usr/local/java/jdk1.2.2/solaris/bin/java -classpath trivial.zip Trivial
Hello, World!

- ... but this crashes

/home/gordonh/work> /usr/local/java/jdk1.3/solaris/bin/java -version
java version "1.3"
Classic VM (build JDK-1.3-E, green threads, sunwjit)
/home/gordonh/work> /usr/local/java/jdk1.3/solaris/bin/java -classpath trivial.zip Trivial
SIGFPE 8* arithmetic exception
    si_signo [8]: SIGFPE 8* arithmetic exception
    si_errno [0]: Error 0
    si_code [1]: FPE_INTDIV [addr: 0xEF62842C]

        stackpointer=effff2b8