--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.desktop/macosx/classes/sun/java2d/macos/MacOSFlags.java	Fri Jun 21 12:08:37 2019 +0530
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 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
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package sun.java2d.macos;
+
+import java.security.PrivilegedAction;
+
+public class MacOSFlags {
+
+    /**
+     * Description of command-line flags.  All flags with [true|false]
+     * values
+     *      metalEnabled: usage: "-Dsun.java2d.metal=[true|false]"
+     */
+
+    private static boolean metalEnabled;
+
+    static {
+        initJavaFlags();
+        initNativeFlags();
+    }
+
+    private static native boolean initNativeFlags();
+
+    private static boolean getBooleanProp(String p, boolean defaultVal) {
+        String propString = System.getProperty(p);
+        boolean returnVal = defaultVal;
+        if (propString != null) {
+            if (propString.equals("true") ||
+                propString.equals("t") ||
+                propString.equals("True") ||
+                propString.equals("T") ||
+                propString.equals("")) // having the prop name alone
+            {                          // is equivalent to true
+                returnVal = true;
+            } else if (propString.equals("false") ||
+                       propString.equals("f") ||
+                       propString.equals("False") ||
+                       propString.equals("F"))
+            {
+                returnVal = false;
+            }
+        }
+        return returnVal;
+    }
+
+
+    private static boolean getPropertySet(String p) {
+        String propString = System.getProperty(p);
+        return (propString != null) ? true : false;
+    }
+
+    private static void initJavaFlags() {
+        java.security.AccessController.doPrivileged(
+                (PrivilegedAction<Object>) () -> {
+                    metalEnabled = getBooleanProp("sun.java2d.metal", false);
+                    return null;
+                });
+    }
+
+    public static boolean isMetalEnabled() {
+        return metalEnabled;
+    }
+}