--- a/langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Lower.java	Wed Jul 05 21:58:29 2017 +0200
+++ b/langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Lower.java	Tue Jul 19 11:27:56 2016 -0700
@@ -902,13 +902,7 @@
     /** Return binary operator that corresponds to given access code.
      */
     private OperatorSymbol binaryAccessOperator(int acode) {
-        for (Symbol sym : syms.predefClass.members().getSymbols(NON_RECURSIVE)) {
-            if (sym instanceof OperatorSymbol) {
-                OperatorSymbol op = (OperatorSymbol)sym;
-                if (accessCode(op.opcode) == acode) return op;
-            }
-        }
-        return null;
+        return (OperatorSymbol)operators.lookupBinaryOp(sym -> accessCode(((OperatorSymbol)sym).opcode) == acode);
     }
 
     /** Return tree tag for assignment operation corresponding

--- a/langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Operators.java	Wed Jul 05 21:58:29 2017 +0200
+++ b/langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Operators.java	Tue Jul 19 11:27:56 2016 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -798,6 +798,15 @@
                     .addBinaryOperator(BOOLEAN, BOOLEAN, BOOLEAN, bool_or));
     }
 
+    Symbol lookupBinaryOp(Predicate<Symbol> applicabilityTest) {
+        return binaryOperators.values().stream()
+                .flatMap(List::stream)
+                .map(helper -> helper.doLookup(applicabilityTest))
+                .distinct()
+                .filter(sym -> sym != syms.noSymbol)
+                .findFirst().get();
+    }
+
     /**
      * Complete the initialization of an operator helper by storing it into the corresponding operator map.
      */

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/test/tools/javac/T8161383/LookingForOperatorSymbolsAtWrongPlaceTest.java	Tue Jul 19 11:27:56 2016 -0700
@@ -0,0 +1,18 @@
+/**
+ * @test /nodynamiccopyright/
+ * @bug 8161383
+ * @summary javac is looking for operator symbols at the wrong place
+ * @compile LookingForOperatorSymbolsAtWrongPlaceTest.java
+ */
+
+public class LookingForOperatorSymbolsAtWrongPlaceTest {
+    class Base {
+        protected int i = 1;
+    }
+
+    class Sub extends Base {
+        void func(){
+            Sub.super.i += 10;
+        }
+    }
+}