8027132: Print deprecation warning message for the flags controlling the CMS foreground collector

Reviewed-by: stefank, ehelin, ysr, tschatzl

src/share/vm/runtime/arguments.cpp

@@ -1988,6 +1988,15 @@ void Arguments::check_deprecated_gc_flags() {
     warning("DefaultMaxRAMFraction is deprecated and will likely be removed in a future release. "
         "Use MaxRAMFraction instead.");
   }
+  if (FLAG_IS_CMDLINE(UseCMSCompactAtFullCollection)) {
+    warning("UseCMSCompactAtFullCollection is deprecated and will likely be removed in a future release.");
+  }
+  if (FLAG_IS_CMDLINE(CMSFullGCsBeforeCompaction)) {
+    warning("CMSFullGCsBeforeCompaction is deprecated and will likely be removed in a future release.");
+  }
+  if (FLAG_IS_CMDLINE(UseCMSCollectionPassing)) {
+    warning("UseCMSCollectionPassing is deprecated and will likely be removed in a future release.");
+  }
 }
 
 // Check stack pages settings

test/gc/startup_warnings/TestCMSForegroundFlags.java

+/*
+* 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 TestCMSForegroundFlags
+* @key gc
+* @bug 8027132
+* @summary Test that the deprecated CMS foreground collector flags print warning messages
+* @library /testlibrary
+* @run main TestCMSForegroundFlags -XX:-UseCMSCompactAtFullCollection UseCMSCompactAtFullCollection
+* @run main TestCMSForegroundFlags -XX:CMSFullGCsBeforeCompaction=4 CMSFullGCsBeforeCompaction
+* @run main TestCMSForegroundFlags -XX:-UseCMSCollectionPassing UseCMSCollectionPassing
+*/
+
+import com.oracle.java.testlibrary.OutputAnalyzer;
+import com.oracle.java.testlibrary.ProcessTools;
+
+public class TestCMSForegroundFlags {
+  public static void main(String[] args) throws Exception {
+    if (args.length != 2) {
+      throw new Exception("Expected two arguments,flagValue and flagName");
+    }
+    String flagValue = args[0];
+    String flagName = args[1];
+
+    ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(flagValue, "-version");
+    OutputAnalyzer output = new OutputAnalyzer(pb.start());
+    output.shouldContain("warning: " + flagName + " is deprecated and will likely be removed in a future release.");
+    output.shouldNotContain("error");
+    output.shouldHaveExitValue(0);
+  }
+}