Jon Gibbons suggested invoking the compiler API directly from java instead of writing a shell script. Doing this seems fairly simple, and I think it would be advantageous to keep things entirely in Java. I may attempt to rewrite the defaultSVID test using the compiler API.
Here's a test that does just that. http://hg.openjdk.java.net/jdk8/tl/jdk/file/2de8c6c2d652/test/sun/misc/JarIndex/metaInfFilenames/Basic.java -Chris.
