--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/agent/src/share/classes/sun/jvm/hotspot/tools/JStack.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,92 @@
+/*
+ * Copyright 2004-2005 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;
+
+public class JStack extends Tool {
+    public JStack(boolean mixedMode, boolean concurrentLocks) {
+        this.mixedMode = mixedMode;
+        this.concurrentLocks = concurrentLocks;
+    }
+
+    public JStack() {
+        this(true, true);
+    }
+
+    protected boolean needsJavaPrefix() {
+        return false;
+    }
+
+    public String getName() {
+        return "jstack";
+    }
+
+    protected void printFlagsUsage() {
+       System.out.println("    -l\tto print java.util.concurrent locks");
+       System.out.println("    -m\tto print both java and native frames (mixed mode)");
+       super.printFlagsUsage();
+    }
+
+    public void run() {
+        Tool tool = null;
+        if (mixedMode) {
+            tool = new PStack(false, concurrentLocks);
+        } else {
+            tool = new StackTrace(false, concurrentLocks);
+        }
+        tool.setAgent(getAgent());
+        tool.setDebugeeType(getDebugeeType());
+        tool.run();
+    }
+
+    public static void main(String[] args) {
+        boolean mixedMode = false;
+        boolean concurrentLocks = false;
+        int used = 0;
+        for (int i = 0; i < args.length; i++) {
+            if (args[i].equals("-m")) {
+                mixedMode = true;
+                used++;
+            } else if (args[i].equals("-l")) {
+                concurrentLocks = true;
+                used++;
+            }
+        }
+
+        if (used != 0) {
+            String[] newArgs = new String[args.length - used];
+            for (int i = 0; i < newArgs.length; i++) {
+                newArgs[i] = args[i + used];
+            }
+            args = newArgs;
+        }
+
+        JStack jstack = new JStack(mixedMode, concurrentLocks);
+        jstack.start(args);
+        jstack.stop();
+    }
+
+    private boolean mixedMode;
+    private boolean concurrentLocks;
+}