diff -up ./build.xml.tests-headless ./build.xml

--- ./build.xml.tests-headless	2009-11-09 10:35:40.000000000 +0100

+++ ./build.xml	2009-11-09 10:36:06.000000000 +0100

@@ -466,6 +466,7 @@

       <jvmarg value="-Djna.protected=true"/>

       <jvmarg value="-Djna.builddir=${build}"/>

       <jvmarg value="${vmopt.arch}"/>

+      <jvmarg value="-Djava.awt.headless=true"/>

       <classpath><path refid="test.runpath"/></classpath>

       <formatter type="xml"/>

       <batchtest todir="${results.junit}">