I've created a 'minst' jvmti example that doesn't use native code callbacks, but uses the classfileloadhook and java_crw_demo to instrument method entries. Lots less native code, might be of interest to others.

A java.lang.instrument example would be better, but we don't have that, plus we'd need a Java equivalent to java_crw_demo, which I know we will have someday, or we'd need to use BCEL or something.

Just a good addition to the examples.