This is most likely an issue of the XDoclet libraries shipped with MyEclipse being outdated. We will address this in 3.9… we had a plan to address the updating of XDoclet in 3.8.3, but the changes necessary to get it done are a bit more daunting (Give our work load now) than we had anticipated. You can update XDoclet manually by using these steps:
1) Download the new xdoclet-lib-1.2.2.zip file from the http://sourceforge.net/project/showfiles.php?group_id=31602.
2) Backup this directory: <MYECLIPSE_INSTALL_DIR>/eclipse/plugins/com.genuitec.jboss.ide.eclipse..xdoclet.core_3.8.2/
3) Remove all xdoclet files: xdoclet-*-module-1.2.jar files, xdoclet-1.2.jar, and xjavadoc-1.0.2.jar
4) Extract all files from xdoclet-lib-1.2.2 and copy into this directory. You will be asked if you want to over some files, say yes
5) Bring up MyElcipse and go to Window > Preferences > MyEclipse > XDoclet
6) Click “Refresh XDoclet Modules”
7) Expand XDoclet page and click on Code Assist
8) Click “Refresh XDoclet Data”
— Thanks Greg!