src/share/classes/com/sun/tools/javac/model/JavacElements.java

@@ -264,13 +264,14 @@
     private static final Class<? extends Annotation> REPEATABLE_CLASS = initRepeatable();
     private static final Method VALUE_ELEMENT_METHOD = initValueElementMethod();
 
     private static Class<? extends Annotation> initRepeatable() {
         try {
-            @SuppressWarnings("unchecked") // java.lang.annotation.Repeatable extends Annotation by being an annotation type
-            Class<? extends Annotation> c = (Class)Class.forName("java.lang.annotation.Repeatable");
-            return c;
+            // Repeatable will not be available when bootstrapping on
+            // JDK 7 so use a reflective lookup instead of a class
+            // literal for Repeatable.class.
+            return Class.forName("java.lang.annotation.Repeatable").asSubclass(Annotation.class);
         } catch (ClassNotFoundException e) {
             return null;
         } catch (SecurityException e) {
             return null;
         }