If you attempt to replace these packages, especially jdom, JBuilder itself breaks. There was a recent thread where someone wished to use a newer version of JDom so they replaced JBuilder's default jdom.jar with a different one, and JBuilder broke, hard.

You should not make any changes to *any* jar files or library definitions stored within jbuilder5/lib because these jars are on JBuilder's own classpath. Any jars you provide yourself should be elsewhere.
2001-Sep-28 12:22pm gyles19@visi.com