diff --git a/build.xml b/build.xml
index 47a0f2a..47f8f2b 100644
--- a/build.xml
+++ b/build.xml
@@ -180,8 +180,6 @@
   <target name="init-codegen" depends="debuggen,subst">
     <javac destdir="${build.classes.dir}" 
            classpathref="codegen-classpath"
-	   source="${jvm.target.version}"
-	   target="${jvm.target.version}"
            debug="true">
       <src>
 	<pathelement location="${build.codegen.dir}" />
@@ -224,8 +222,6 @@
   <target name="compile-common" depends="codegen">
     <javac destdir="${build.classes.dir}" 
            classpathref="build-classpath" 
-	   source="${jvm.target.version}"
-	   target="${jvm.target.version}"
            debug="on">
       <sourcepath>
 	<pathelement location="${build.codegen.dir}" />
@@ -246,8 +242,6 @@
   <target name="compile-subst" depends="codegen">
     <javac destdir="${build.classes.dir}" 
            classpathref="build-classpath" 
-	   source="${jvm.target.version}"
-	   target="${jvm.target.version}"
            debug="on">
       <sourcepath>
 	<pathelement location="${build.codegen.dir}" />
@@ -262,8 +256,6 @@
   <target name="compile-mgmt" depends="codegen" unless="no-mgmt">
     <javac destdir="${build.classes.dir}" 
            classpathref="build-classpath" 
-	   source="${jvm.target.version}"
-	   target="${jvm.target.version}"
            debug="on">
       <sourcepath>
 	<pathelement location="${java.src.dir}" />
@@ -318,8 +310,6 @@
   <target name="compile-junit" depends="compile">
     <javac destdir="${test.classes.dir}" 
            classpathref="test-classpath" 
-	   source="${jvm.target.version}"
-	   target="${jvm.target.version}"
            debug="on">
       <sourcepath>
 	<pathelement location="${java.src.dir}" />