Using blackdown-jdk-1.4.1_beta when building the xmlsearch project it bombs out complaining about assert being a keyword in 1.4 (or something, lost it from my history now :( ). I switched to using a 1.3 jdk and it worked fine. Something probably worth checking for in the ebuild.
fixed in openoffice-1.0.1-r2. i havn't backported the fix yet b/c it still needs more testing, try it out ;-)