Community
Participate
Working Groups
ISE thrown compiling http://sourceforge.net/projects/collections 4.0beta3 source. javac issues two warnings, but Eclipse 3.1 (JDT) issues *many* for type parameter hiding types (perhaps bug 103783). I haven't isolated a test case or tried it on earlier releases - sorry.
Created attachment 26684 [details] ajcore text file
I recognise that stack trace :) The collections project looks like a good way of hammering our generics support. I'll download it and give it a spin...
I've improved the error handling inside ajc so that we get much better diagnostics on errors like this in the future. The compiler now fails with an IllegalStateException that says: "While determing the generic superinterfaces of org.apache.commons.collections15.list.FastArrayList$SubList$SubListIter with generic signature Ljava/lang/Object;Ljava/util/ListIterator<TE;>; the following error was detected: Undeclared type variable in signature: E" Much more like it :) Now I can go ahead and make the fix (not chasing up *all* the outer types to find type variables, we are only looking at immediate enclosing types at the moment), and if we encounter similar situations in the future we should be able to debug much more directly from the error report.
Put in place a straightforward fix to walk *all* outer types while looking for type variables in scope. ajc now compiles the collections project without error. Just running the full suite before commiting...
fix now available in latest published build on the downloads page.
