diff -r 472e74211e11 -r 13354e1abba7 src/share/classes/com/sun/tools/javac/code/Source.java
--- a/src/share/classes/com/sun/tools/javac/code/Source.java	Thu Jul 15 16:31:56 2010 +0100
+++ b/src/share/classes/com/sun/tools/javac/code/Source.java	Fri Jul 16 19:35:24 2010 -0700
@@ -159,6 +159,9 @@
     public boolean enforceMandatoryWarnings() {
         return compareTo(JDK1_5) >= 0;
     }
+    public boolean allowTryWithResources() {
+        return compareTo(JDK1_7) >= 0;
+    }
     public boolean allowTypeAnnotations() {
         return compareTo(JDK1_7) >= 0;
     }