--- old/src/share/vm/runtime/arguments.cpp	2013-07-31 15:30:55.000000000 +0200
+++ new/src/share/vm/runtime/arguments.cpp	2013-07-31 15:30:55.000000000 +0200
@@ -1591,6 +1591,8 @@
 void Arguments::set_heap_size() {
   if (!FLAG_IS_DEFAULT(DefaultMaxRAMFraction)) {
     // Deprecated flag
+    warning("DefaultMaxRAMFraction is deprecated and will likely be removed in a future release. "
+        "Use MaxRAMFraction instead.");
     FLAG_SET_CMDLINE(uintx, MaxRAMFraction, DefaultMaxRAMFraction);
   }
 
--- /dev/null	2013-07-31 15:30:56.000000000 +0200
+++ new/test/gc/startup_warnings/TestDefaultMaxRAMFraction.java	2013-07-31 15:30:55.000000000 +0200
@@ -0,0 +1,44 @@
+/*
+* Copyright (c) 2013, 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.
+*
+* 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.
+*/
+
+/*
+* @test TestDefaultMaxRAMFraction
+* @key gc
+* @bug 8021967
+* @summary Test that the deprecated TestDefaultMaxRAMFraction flag print a warning message
+* @library /testlibrary
+*/
+
+import com.oracle.java.testlibrary.OutputAnalyzer;
+import com.oracle.java.testlibrary.ProcessTools;
+
+public class TestDefaultMaxRAMFraction {
+  public static void main(String[] args) throws Exception {
+    ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:DefaultMaxRAMFraction=4", "-version");
+    OutputAnalyzer output = new OutputAnalyzer(pb.start());
+    output.shouldContain("warning: DefaultMaxRAMFraction is deprecated and will likely be removed in a future release. Use MaxRAMFraction instead.");
+    output.shouldNotContain("error");
+    output.shouldHaveExitValue(0);
+  }
+
+}