diff -up ./build.xml.sav ./build.xml
--- ./build.xml.sav	2008-05-15 19:04:11.000000000 -0400
+++ ./build.xml	2008-05-15 19:06:12.000000000 -0400
@@ -209,7 +209,7 @@
        <property name="bnf.grammar" location="${dir.grammar}/hql.g"/>
 
        <java dir="${dir.out.doc}/other" classname="net.mark_malakanov.sdg2.Main" classpathref="path.lib" fork="true">
-           <jvmarg line="-Xmx512M"/>
+           <jvmarg line="-Xmx4096M"/>
            <arg line="-blind"/>
            <arg line="-savehtml hql-bnf.html"/>
            <arg line="-savehtmltitle Hibernate ${version.full} HQL"/>