RStudio is an integrated development environment (IDE) for R
Maven/Gradle alternative with a twist: its a single Java file
Environment for configuring customized applications Asset Management
This is a small PDF editor based on OpenPdf core and AndroidPdfViewer
Cress is a comprehensive toolset for graphical service/workflow design
Workflow Designer, Hive Editor, Pig Editor, File System Browser
A free, easy-to-use and user-friendly Java-based UML editor.