libgcj

How is GNU Classpath related to libgcj?

Both projects are free implementations of the Java standard libraries. libgcj's homepage says it was merged with Classpath, but they're still separate packages in Ubuntu. So what's the difference? Is one better than the other? Does one depend on the other? ...

GCJ javax.swing.GroupLayout

I am using gnu compiler for java version 4.4.4. It doesn't come with support for javax.swing.GroupLayout. Do later versions come with this support? I have build GCC many times before on my system. Should I do this? ...