Using JBoss 4.2.0.GA a call to createCDATASection(String data) will throw a StackOverflowError.

I suspect this code:
public CDATASection createCDATASection(String data) throws DOMException

{ return createCDATASection(data); }

should read:
public CDATASection createCDATASection(String data) throws DOMException

{ return doc.createCDATASection(data); }