License4J 

License4J is a pure Java library for creating and validating licenses. The key concept is features of a license. You can easily add any feature to your license file, i.e. name of the product, version, expiry date, number of executable instances, etc.
license4j license licensing validation smardec

Excelsior JET for Windows 

Excelsior JET is a Java Virtual Machine enhanced with Ahead-Of-Time (AOT) compilation. The AOT compiler transforms your classes and jars into high-performance Windows executables. Version for Linux on the Intel x86 platform is also available.
exe dll compiler native ahead-of-time jvm

Java GDS Plugin 

This plugin allows Google Desktop Search to index Java source files. Includes syntax coloring in the cache.
google gds google desktop search

EasyCharts 

EasyCharts is a complete library of java charting components, applets, and servlets, that enable programmers to add charts and graphs in java and web applications with just a few lines of code.
chart graph applets servlet library

JDDM (Drop Down Menu) 

JDDM is a professional Java drop-down and popup Web Menu applet. JDDM lets you generate vertical and horizontal menus with unlimited number of nested pop-up submenus, various color schemes, buttons, fonts, icons and sounds.
jddm drop down menu web menu java menu popup menu dynamic menu graphic menu applet site website web navigation internet

JWTM (Web Tree Menu) 

JWTM is a professional java tree Web menu applet. JWTM lets you generate tree menus with unlimited number of nested pop-up submenus, various color schemes, buttons, fonts, icons and sounds.
jwtm web tree menu web menu java menu tree menu dynamic menu graphic menu applet site website web navigation internet