DrJava 20080904-r4668 / 20090402-r4864
DrJava is a lightweight development environment for writing Java programs.
It also includes powerful features for more advanced users. DrJava is available for free under the DrJava Open Source License, and it is under active development by the JavaPLT group at Rice University.
From the command line, you can type:
java -jar drjava-stable-20060127-2145.jar