--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/agent/src/share/classes/sun/jvm/hotspot/tools/HeapDumper.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2005 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+package sun.jvm.hotspot.tools;
+
+import sun.jvm.hotspot.utilities.HeapHprofBinWriter;
+import java.io.IOException;
+
+/*
+ * This tool is used by the JDK jmap utility to dump the heap of the target
+ * process/core as a HPROF binary file. It can also be used as a standalone
+ * tool if required.
+ */
+public class HeapDumper extends Tool {
+
+    private static String DEFAULT_DUMP_FILE = "heap.bin";
+
+    private String dumpFile;
+
+    public HeapDumper(String dumpFile) {
+        this.dumpFile = dumpFile;
+    }
+
+    protected void printFlagsUsage() {
+        System.out.println("    <no option>\tto dump heap to " +
+            DEFAULT_DUMP_FILE);
+        System.out.println("    -f <file>\tto dump heap to <file>");
+        super.printFlagsUsage();
+    }
+
+    // use HeapHprofBinWriter to write the heap dump
+    public void run() {
+        System.out.println("Dumping heap to " + dumpFile + " ...");
+        try {
+            new HeapHprofBinWriter().write(dumpFile);
+            System.out.println("Heap dump file created");
+        } catch (IOException ioe) {
+            System.err.println(ioe.getMessage());
+        }
+    }
+
+    // JDK jmap utility will always invoke this tool as:
+    //   HeapDumper -f <file> <args...>
+    public static void main(String args[]) {
+        String file = DEFAULT_DUMP_FILE;
+        if (args.length > 2) {
+            if (args[0].equals("-f")) {
+                file = args[1];
+                String[] newargs = new String[args.length-2];
+                System.arraycopy(args, 2, newargs, 0, args.length-2);
+                args = newargs;
+            }
+        }
+
+        HeapDumper dumper = new HeapDumper(file);
+        dumper.start(args);
+        dumper.stop();
+    }
+
+}