When running multiple Java applications on a system you end up with
a bunch of processes named 'java' which makes it difficult to figure
out which process belongs to which application. This is especially true
on Windows and the Mac where the GUI "process" tools don't show command
line arguments (which are often useful in identify which java is which).

It would be useful to have an option to the java launcher to have it use
an alternate name (argv[0]) for the process that is the JVM.

For example

java -Xpname:myjava