diff -r c52a37f40324 -r 659b004b6a1b src/java.desktop/macosx/native/libawt_lwawt/awt/AWTWindow.m
--- a/src/java.desktop/macosx/native/libawt_lwawt/awt/AWTWindow.m	Tue Jan 15 16:41:17 2019 -0800
+++ b/src/java.desktop/macosx/native/libawt_lwawt/awt/AWTWindow.m	Wed Jan 16 23:56:32 2019 +0530
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 2019, 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
@@ -965,11 +965,6 @@
                     // Currently, no need to deliver the whole NSEvent.
                     static JNF_MEMBER_CACHE(jm_deliverNCMouseDown, jc_CPlatformWindow, "deliverNCMouseDown", "()V");
                     JNFCallVoidMethod(env, platformWindow, jm_deliverNCMouseDown);
-                    // Deliver double click on title bar
-                    if ([event clickCount] > 1) {
-                        static JNF_MEMBER_CACHE(jm_deliverDoubleClickOnTitlebar, jc_CPlatformWindow, "deliverDoubleClickOnTitlebar", "()V");
-                        JNFCallVoidMethod(env, platformWindow, jm_deliverDoubleClickOnTitlebar);
-                    }
                     (*env)->DeleteLocalRef(env, platformWindow);
                 }
             }