Standalone java base java formatter

Is there a Java-based program(jar) that can format java code(indenting/spacing). If it would be configurable that would be great.

From stackoverflow

• You bet: JIndent.

• CheckStyle is another and FREE. CheckStyle:Indentation.

  Milhous : Can you give a specific example of using this tool?

  Adeel Ansari : Once I have used this as a Netbeans plugin. There are plugins available for Eclipse, IntelliJ, Netbeans, JBuilder, JEdit and Emacs JDE. The plugin I used before is http://www.sickboy.cz/checkstyle/screenshots.html