jEdit is a programmer's text editor written in Java.
wxMEdit, Cross-platform Text/Hex Editor, Improved Version of MadEdit
A Java class library of general usability
Localization tools built by localizers for localizers
Aspose for Spring.Java provides Aspose API samples for Spring.Java.
FCKeditor (retired)
Library of linguistic tools
ogeditor is Web-based simple CMS with powerful WYSIWYG/Script editor