jar-signer-plugin-for-eclipse-vsp-fork
This eclipse plugin is a fork of Hugo Guerrero's "net.sf.vsp.signer". All credits goes to him.
http://sourceforge.net/projects/jarsigner.
It needs a jardesc file in order to show the "Create Signed JAR" context menu item.
It uses oracle jarsigner to sign a jar, so it needs java JDK.
This plugin should work with Eclipse Indigo and greater (tested with Juno and jdk 1.6.0_23 and 1.6.0_45) and should fix these issues:
http://sourceforge.net/projects/jarsigner/forums/forum/961551/topic/3412200
http://sourceforge.net/projects/jarsigner/forums/forum/961551/topic/5107733