If you want to extend the Expr class, you must explicitly add the permits clause. Only a library developer can add that clause. Sealed class rules Sealed classes offer precise control over inheritance ...

Last updated at 1:12 p.m. PT. SAN FRANCISCO -- While the Java language is free to use and that isn't being contested by either Google or Oracle, one of the key tasks Oracle needs to accomplish if ...

java.lang.ref: A collection of reference-related language classes, such as SoftReference and ReferenceQueue, organized in the ref sub-subpackage of the java package’s lang subpackage ...

I'm purely a Java guy, and we'll eventually get to a pure Java library, but in the meantime I'd like to test using something like JNA. I'm wanting to keep this under a linux environment.

November 7 — Big Faceless Organization’s PDF Library 2.0, a Java class library for creating and editing PDF documents, now provides an extensible architecture for custom signature and ...