Screaming Penguin - Source Does Matter

Straight from IBM:

Linux JDK 1.3.0

The IBM Developer Kit for Linux(R), Java(TM) 2 Technology
Edition, Version 1.3.0 Early Release (Early Release Developer
Kit) is a software development kit that can be used to build
Java applications on Linux. The Early Release Developer Kit
includes development tools, the IBM Java Runtime Environment
for Linux, sample code and Java source files.

Note that IBM software (in terms of dev stuff, anything alphaworks really) is making great technology and Linux strides. Please check out all of the great FREE tutorials and products at alphaWorks and developerWorks. (The IBM Java, Linux, XML and XSL stuff rocks!)
  IBM JDK for Linux 1.3