Exceptions in 1.4 include a method 
StackTraceElement[] getStackTrace

Rather than post and parse the stack trace, any
exception 
internal to the IDE's JVM could be handled using this
method - less work, faster, and opportunities for
a much
nicer UI.

This is also useful for logging calls to
deprecated methods
and such, e.g.

public void myDeprecatedMethod () {
    Exception e = new Exception();
    try { throw e } catch (Exception e) {}
    StackTraceElement caller = e.getStackTrace()[1];
    //output the warning, plus the class and line
number of
    //the caller
}