Assertion failed

We use xdoclet to generate all descriptors for our J2EE application. When I
start an ant task which first removes all descriptors and then starts
xdoclet to generate them, IDEA throws a lot of the following exception:

ERROR - intellij.plugins.PluginManager -
ERROR - intellij.plugins.PluginManager - IntelliJ IDEA (Ariadna)
3.0
Build #642
ERROR - intellij.plugins.PluginManager - JDK: 1.4.1-rc
ERROR - intellij.plugins.PluginManager - VM: Java HotSpot(TM)
Client
VM
ERROR - intellij.plugins.PluginManager - Vendor: Sun Microsystems
Inc
..
ERROR - intellij.plugins.PluginManager - OS: Windows XP
ERROR - intellij.plugins.PluginManager -
java.lang.NullPointerException
at com.intellij.j2ee.b.d.e.r(e.java:63)
at com.intellij.j2ee.b.d.f.r(f.java:161)
at com.intellij.codeInsight.l.a.c.a.c.c(c.java:187)
at com.intellij.codeInsight.l.a.c.a.c.a(c.java:154)
at com.intellij.codeInsight.l.a.c.a.p.a(p.java:14)
at com.intellij.codeInsight.l.a.c.a.q.visitMethod(q.java:19)
at com.intellij.psi.d.e.o.accept(o.java:36)
at com.intellij.codeInsight.l.a.c.g.a(g.java:45)
at com.intellij.codeInsight.l.a.l.a(l.java:24)
at com.intellij.codeInsight.l.a.l.run(l.java:122)
at com.intellij.openapi.application.b.d.runReadAction(d.java:108)
at com.intellij.codeInsight.l.a.co.b(co.java:70)
at com.intellij.codeInsight.l.a.co.a(co.java:45)
at com.intellij.codeInsight.l.a.co.a(co.java:1)
at com.intellij.codeInsight.l.a.bz.run(bz.java:2)
at com.intellij.progress.c.a(c.java:23)
at com.intellij.codeInsight.l.a.co.run(co.java:61)

There should be a more user-friendly way to report that ejb destriptors do
not exist any longer.

/kesh