--- build.xml.pdf	2009-03-20 16:50:22.254154899 -0400
+++ build.xml	2009-03-20 16:51:26.178031166 -0400
@@ -1793,8 +1793,9 @@
 					<include name="**/*.jar"/>
 				</fileset>
 			</classpath>
-			<jvmarg value="-Xmx256M"/>
+			<jvmarg value="-Xmx512M"/>
 			<jvmarg value="-XX:MaxPermSize=128m"/>
+			<jvmarg value="-XX:-UseGCOverheadLimit"/>
 			<arg value="-o"/>
 			<arg value="${basedir}/${dist.ref.dir}/pdf/docbook_fop.tmp"/>
 			<arg value="${basedir}/${doc.ref.dir}/src/index.xml"/>