--- a/langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Check.java	Thu Jun 29 14:32:39 2017 -0700
+++ b/langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Check.java	Fri Jun 30 05:47:35 2017 -0700
@@ -1568,6 +1568,10 @@
             exc.hasTag(BOT);
     }
 
+    boolean isChecked(Type exc) {
+        return !isUnchecked(exc);
+    }
+
     /** Same, but handling completion failures.
      */
     boolean isUnchecked(DiagnosticPosition pos, Type exc) {