--- a/langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Enter.java	Wed Feb 08 13:35:42 2017 -0800
+++ b/langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Enter.java	Wed Feb 08 19:42:24 2017 -0800
@@ -156,6 +156,7 @@
 
     public Env<AttrContext> getClassEnv(TypeSymbol sym) {
         Env<AttrContext> localEnv = getEnv(sym);
+        if (localEnv == null) return null;
         Env<AttrContext> lintEnv = localEnv;
         while (lintEnv.info.lint == null)
             lintEnv = lintEnv.next;