try to not build test.performance and ant.optional.junit from CVS but include these from the test framework.
was: failure to install test.performance, perhaps due to duplication.
diff --git a/releng/map/otdt.map b/releng/map/otdt.map
index e72967c..6bb70b2 100644
--- a/releng/map/otdt.map
+++ b/releng/map/otdt.map
@@ -54,10 +54,10 @@
!plugin@org.eclipse.jdt.debug.tests=SVN,url=svn://localhost/svnroot/tools/org.eclipse.objectteams/,path=testplugins/org.eclipse.jdt.debug.tests
!-- .. but from original CVS:
-plugin@org.eclipse.test.performance=v20100122,/cvsroot/eclipse,
+!plugin@org.eclipse.test.performance=v20100122,/cvsroot/eclipse,
plugin@org.eclipse.jdt.core.tests.builder=v_A45,/cvsroot/eclipse,
plugin@org.eclipse.jdt.debug.tests=v20100322,/cvsroot/eclipse,
-plugin@org.eclipse.ant.optional.junit=v20080717,/cvsroot/eclipse,
+!plugin@org.eclipse.ant.optional.junit=v20080717,/cvsroot/eclipse,