diff -r f954d3f4d192 -r 740b1133f1b6 make/build.xml
--- a/make/build.xml	Thu Sep 19 13:34:01 2013 +0530
+++ b/make/build.xml	Thu Sep 19 15:39:01 2013 +0200
@@ -66,6 +66,8 @@
 
     <echo message="run.test.jvmargs=${run.test.jvmargs}"/>
     <echo message="run.test.jvmargs.octane=${run.test.jvmargs.octane}"/>
+    <echo message="run.test.xms=${run.test.xms}"/>
+    <echo message="run.test.xmx=${run.test.xmx}"/>
 
   </target>
 
@@ -320,7 +322,7 @@
     <testng outputdir="${build.test.results.dir}" classfilesetref="test.classes"
        verbose="${testng.verbose}" haltonfailure="true" useDefaultListeners="false" listeners="${testng.listeners}" workingDir="${basedir}">
       <jvmarg line="${ext.class.path}"/>
-      <jvmarg line="${run.test.jvmargs} ${run.test.jvmsecurityargs}"/>
+      <jvmarg line="${run.test.jvmargs} -Xmx${run.test.xmx} ${run.test.jvmsecurityargs}"/>
       <propertyset>
         <propertyref prefix="test-sys-prop."/>
         <mapper from="test-sys-prop.*" to="*" type="glob"/>
@@ -336,7 +338,7 @@
       <!-- use just build.test.classes.dir to avoid referring to TestNG -->
       <java classname="${parallel.test.runner}" dir="${basedir}" classpath="${build.test.classes.dir}" failonerror="true" fork="true">
       <jvmarg line="${ext.class.path}"/>
-      <jvmarg line="${run.test.jvmargs} ${run.test.jvmsecurityargs}"/>
+      <jvmarg line="${run.test.jvmargs} -Xmx${run.test.xmx} ${run.test.jvmsecurityargs}"/>
       <syspropertyset>
           <propertyref prefix="test-sys-prop."/>
           <mapper type="glob" from="test-sys-prop.*" to="*"/>
@@ -352,7 +354,7 @@
     <testng outputdir="${build.test.results.dir}" classfilesetref="test.classes"
        verbose="${testng.verbose}" haltonfailure="true" useDefaultListeners="false" listeners="${testng.listeners}" workingDir="${basedir}">
       <jvmarg line="${ext.class.path}"/>
-      <jvmarg line="${run.test.jvmargs} ${run.test.jvmsecurityargs}"/>
+      <jvmarg line="${run.test.jvmargs} -Xmx${run.test.xmx} ${run.test.jvmsecurityargs}"/>
       <propertyset>
         <propertyref prefix="test262-test-sys-prop."/>
         <mapper from="test262-test-sys-prop.*" to="*" type="glob"/>
@@ -369,7 +371,7 @@
     <!-- use just build.test.classes.dir to avoid referring to TestNG -->
     <java classname="${parallel.test.runner}" dir="${basedir}" fork="true">
       <jvmarg line="${ext.class.path}"/>
-      <jvmarg line="${run.test.jvmargs} ${run.test.jvmsecurityargs}"/>
+      <jvmarg line="${run.test.jvmargs} -Xmx${run.test.xmx} ${run.test.jvmsecurityargs}"/>
       <classpath>
           <pathelement path="${run.test.classpath}"/>
       </classpath>
@@ -387,7 +389,7 @@
       description="Run the shell with a sample script">
     <java classname="${nashorn.shell.tool}" fork="true" dir="samples">
         <jvmarg line="${ext.class.path}"/>
-        <jvmarg line="${run.test.jvmargs}"/>
+        <jvmarg line="${run.test.jvmargs} -Xmx${run.test.xmx}"/>
         <arg value="-dump-on-error"/>
         <arg value="test.js"/>
     </java>
@@ -397,7 +399,7 @@
       description="Debug the shell with a sample script">
     <java classname="${nashorn.shell.tool}" fork="true" dir="samples">
         <jvmarg line="${ext.class.path}"/>
-        <jvmarg line="${run.test.jvmargs}"/>
+        <jvmarg line="${run.test.jvmargs} -Xmx${run.test.xmx}"/>
         <arg value="--print-code"/>
         <arg value="--verify-code"/>
         <arg value="--print-symbols"/>