diff -r 3f5132a21ab5 -r 1c348e8d9b88 nashorn/make/build.xml
--- a/nashorn/make/build.xml	Tue Aug 19 11:25:14 2014 +0200
+++ b/nashorn/make/build.xml	Tue Aug 19 18:14:45 2014 +0530
@@ -128,6 +128,7 @@
       <compilerarg value="-Xlint:all"/>
       <compilerarg value="-XDignore.symbol.file"/>
       <compilerarg value="-Xdiags:verbose"/>
+      <compilerarg value="-parameters"/>
     </javac>
     <copy todir="${build.classes.dir}/META-INF/services">
        <fileset dir="${meta.inf.dir}/services/"/>