JIP's output only gives the method name. This can be confusing if a method is overloaded. Needed to add the option to output the full method signature (this should be a non-default option because it can make the output really wide!).
Notes: to support this, line 59 in PerfClassAdapter needs to be changed to look like this:
MethodAdapter ma = new PerfMethodAdapter(mv, className, name + ":"+descriptor);
(would need to add profile.properties property for this, etc.)