diff --git a/dev/core/src/com/google/gwt/dev/jjs/ast/JMethod.java b/dev/core/src/com/google/gwt/dev/jjs/ast/JMethod.java
index 4b9f189..41f4bda 100644
--- a/dev/core/src/com/google/gwt/dev/jjs/ast/JMethod.java
+++ b/dev/core/src/com/google/gwt/dev/jjs/ast/JMethod.java
@@ -199,13 +199,13 @@
    * an existing non-JsMember inside a class.
    */
   public boolean exposesNonJsMember() {
-    if (isInterfaceMethod() || getJsMemberType() == JsMemberType.NONE) {
+    if (isInterfaceMethod() || !JjsUtils.exposesJsName(this)) {
       return false;
     }
 
     boolean hasNonJsMemberParent = false;
     for (JMethod overriddenMethod : overriddenMethods) {
-      if (overriddenMethod.getJsMemberType() == JsMemberType.NONE) {
+      if (!JjsUtils.exposesJsName(overriddenMethod)) {
         hasNonJsMemberParent = true;
       }
       if (overriddenMethod.exposesNonJsMember()) {
diff --git a/dev/core/src/com/google/gwt/dev/jjs/impl/GenerateJavaScriptAST.java b/dev/core/src/com/google/gwt/dev/jjs/impl/GenerateJavaScriptAST.java
index 15493d3..4f01054 100644
--- a/dev/core/src/com/google/gwt/dev/jjs/impl/GenerateJavaScriptAST.java
+++ b/dev/core/src/com/google/gwt/dev/jjs/impl/GenerateJavaScriptAST.java
@@ -245,8 +245,7 @@
       if (x.isStatic()) {
         jsName = topScope.declareName(mangleName(x), x.getName());
       } else {
-        jsName =
-            x.getJsMemberType() != JsMemberType.NONE
+        jsName = JjsUtils.exposesJsName(x)
                 ? scopeStack.peek().declareUnobfuscatableName(x.getJsName())
                 : scopeStack.peek().declareName(mangleName(x), x.getName());
       }
@@ -370,8 +369,7 @@
       String name = x.getName();
       if (x.needsDynamicDispatch()) {
         if (polymorphicNames.get(x) == null) {
-          JsName polyName =
-              x.getJsMemberType() != JsMemberType.NONE
+          JsName polyName = JjsUtils.exposesJsName(x)
                   ? interfaceScope.declareUnobfuscatableName(x.getJsName())
                   : interfaceScope.declareName(mangleNameForPoly(x), name);
           polymorphicNames.put(x, polyName);
diff --git a/dev/core/src/com/google/gwt/dev/jjs/impl/JjsUtils.java b/dev/core/src/com/google/gwt/dev/jjs/impl/JjsUtils.java
index da9121f..59dc479 100644
--- a/dev/core/src/com/google/gwt/dev/jjs/impl/JjsUtils.java
+++ b/dev/core/src/com/google/gwt/dev/jjs/impl/JjsUtils.java
@@ -626,6 +626,19 @@
     return getNativeSuperClassOrNull(superClass);
   }
 
+  /**
+   * Whether or not to use the JsName when implementing this member.
+   *
+   * <p>A member should only expose a JsName when a JsName has been assigned and the compilation
+   * has been configured to honor those names.
+   * */
+  public static boolean exposesJsName(JMember member) {
+    // JsFunction interfaces and  implementations do not have JsNames but canBeReferencedExternally
+    // or canBeImplementedExternally.
+    return member.getJsMemberType() != JsMemberType.NONE
+        && (member.canBeImplementedExternally() || member.canBeReferencedExternally());
+  }
+
   private JjsUtils() {
   }
 }
\ No newline at end of file
diff --git a/user/test/com/google/gwt/core/client/impl/StackTraceEmulTest.java b/user/test/com/google/gwt/core/client/impl/StackTraceEmulTest.java
index b15ce75..4553093 100644
--- a/user/test/com/google/gwt/core/client/impl/StackTraceEmulTest.java
+++ b/user/test/com/google/gwt/core/client/impl/StackTraceEmulTest.java
@@ -67,7 +67,7 @@
     String[] methodNames = getTraceJava();
 
     StackTraceElement[] expectedTrace = new StackTraceElement[] {
-        createSTE(methodNames[0], "Throwable.java", 68),
+        createSTE(methodNames[0], "Throwable.java", 67),
         createSTE(methodNames[1], "Exception.java", 29),
         createSTE(methodNames[2], "StackTraceExamples.java", 57),
         createSTE(methodNames[3], "StackTraceExamples.java", 52),
diff --git a/user/test/com/google/gwt/core/client/impl/StackTraceExamples.java b/user/test/com/google/gwt/core/client/impl/StackTraceExamples.java
index 4d86bfc..333547a 100644
--- a/user/test/com/google/gwt/core/client/impl/StackTraceExamples.java
+++ b/user/test/com/google/gwt/core/client/impl/StackTraceExamples.java
@@ -88,13 +88,24 @@
       }
 
       return [
-        @StackTraceCreator::getFunctionName(*)(arguments.callee),
-        @StackTraceCreator::getFunctionName(*)(arguments.callee.caller),
+        @StackTraceExamples::getFunctionName(*)(arguments.callee),
+        @StackTraceExamples::getFunctionName(*)(arguments.callee.caller),
       ];
     }
     return native1();
   }-*/;
 
+  private static native String getFunctionName(JavaScriptObject fn) /*-{
+    return fn.name || (fn.name = @StackTraceExamples::extractFunctionName(*)(fn.toString()));
+  }-*/;
+
+  // Visible for testing
+  static native String extractFunctionName(String fnName) /*-{
+    var fnRE = /function(?:\s+([\w$]+))?\s*\(/;
+    var match = fnRE.exec(fnName);
+    return (match && match[1]) || "anonymous";
+  }-*/;
+
   // Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.22 (KHTML, like Gecko)
   // Chrome/25.0.1364.97 Safari/537.22
   // Modified to test 'xxx [as yyy]' and 'xxx.yyy' scenarios
diff --git a/user/test/com/google/gwt/dev/jjs/test/NoGenerateJsInteropExportsTest.java b/user/test/com/google/gwt/dev/jjs/test/NoGenerateJsInteropExportsTest.java
new file mode 100644
index 0000000..073d63d
--- /dev/null
+++ b/user/test/com/google/gwt/dev/jjs/test/NoGenerateJsInteropExportsTest.java
@@ -0,0 +1,59 @@
+/*
+ * Copyright 2016 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.gwt.dev.jjs.test;
+
+import com.google.gwt.core.client.JavaScriptException;
+import com.google.gwt.junit.DoNotRunWith;
+import com.google.gwt.junit.Platform;
+import com.google.gwt.junit.client.GWTTestCase;
+
+import jsinterop.annotations.JsMethod;
+import jsinterop.annotations.JsType;
+
+/**
+ * Tests for JsInterop that require -nogenerateJsInteropExports.
+ */
+@DoNotRunWith(Platform.Devel)
+public class NoGenerateJsInteropExportsTest extends GWTTestCase {
+
+  @Override
+  public String getModuleName() {
+    return "com.google.gwt.dev.jjs.CompilerSuite";
+  }
+
+  @JsType
+  static class A {
+    @JsMethod(name = "method")
+    public void m() {
+    }
+  }
+
+  @JsType(isNative = true)
+  interface ObjectWithMethod {
+    void method();
+  }
+
+  public void testJsMethodNameNotHonored() {
+    Object o = new A();
+    try {
+      // As this test runs with -nogenerateJsInteropExports, all non native types
+      // should not respect methods JsNames.
+      ((ObjectWithMethod) o).method();
+      fail("Should have failed");
+    } catch (JavaScriptException expected) {
+    }
+  }
+}