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diff --git a/kamon-autoweave/src/main/java/sun/tools/attach/SolarisVirtualMachine.java b/kamon-autoweave/src/main/java/sun/tools/attach/SolarisVirtualMachine.java
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+/*
+ * Copyright (c) 2005, 2010, 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.tools.attach;
+
+import com.sun.tools.attach.VirtualMachine;
+import com.sun.tools.attach.AgentLoadException;
+import com.sun.tools.attach.AttachNotSupportedException;
+import com.sun.tools.attach.spi.AttachProvider;
+import java.io.InputStream;
+import java.io.IOException;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.util.Properties;
+
+/*
+ * Solaris implementation of HotSpotVirtualMachine.
+ */
+public class SolarisVirtualMachine extends HotSpotVirtualMachine {
+    // "/tmp" is used as a global well-known location for the files
+    // .java_pid<pid>. and .attach_pid<pid>. It is important that this
+    // location is the same for all processes, otherwise the tools
+    // will not be able to find all Hotspot processes.
+    // Any changes to this needs to be synchronized with HotSpot.
+    private static final String tmpdir = "/tmp";
+
+    // door descriptor;
+    private int fd = -1;
+
+    /**
+     * Attaches to the target VM
+     */
+    public SolarisVirtualMachine(AttachProvider provider, String vmid)
+        throws AttachNotSupportedException, IOException
+    {
+        super(provider, vmid);
+        // This provider only understands process-ids (pids).
+        int pid;
+        try {
+            pid = Integer.parseInt(vmid);
+        } catch (NumberFormatException x) {
+            throw new AttachNotSupportedException("invalid process identifier");
+        }
+
+        // Opens the door file to the target VM. If the file is not
+        // found it might mean that the attach mechanism isn't started in the
+        // target VM so we attempt to start it and retry.
+        try {
+            fd = openDoor(pid);
+        } catch (FileNotFoundException fnf1) {
+            File f = createAttachFile(pid);
+            try {
+                // kill -QUIT will tickle target VM to check for the
+                // attach file.
+                sigquit(pid);
+
+                // give the target VM time to start the attach mechanism
+                int i = 0;
+                long delay = 200;
+                int retries = (int)(attachTimeout() / delay);
+                do {
+                    try {
+                        Thread.sleep(delay);
+                    } catch (InterruptedException x) { }
+                    try {
+                        fd = openDoor(pid);
+                    } catch (FileNotFoundException fnf2) { }
+                    i++;
+                } while (i <= retries && fd == -1);
+                if (fd == -1) {
+                    throw new AttachNotSupportedException(
+                        "Unable to open door: target process not responding or " +
+                        "HotSpot VM not loaded");
+                }
+            } finally {
+                f.delete();
+            }
+        }
+        assert fd >= 0;
+    }
+
+    /**
+     * Detach from the target VM
+     */
+    public void detach() throws IOException {
+        synchronized (this) {
+            if (fd != -1) {
+                close(fd);
+                fd = -1;
+            }
+        }
+    }
+
+    /**
+     * Execute the given command in the target VM.
+     */
+    InputStream execute(String cmd, Object ... args) throws AgentLoadException, IOException {
+        assert args.length <= 3;                // includes null
+
+        // first check that we are still attached
+        int door;
+        synchronized (this) {
+            if (fd == -1) {
+                throw new IOException("Detached from target VM");
+            }
+            door = fd;
+        }
+
+        // enqueue the command via a door call
+        int s = enqueue(door, cmd, args);
+        assert s >= 0;                          // valid file descriptor
+
+        // The door call returns a file descriptor (one end of a socket pair).
+        // Create an input stream around it.
+        SocketInputStream sis = new SocketInputStream(s);
+
+        // Read the command completion status
+        int completionStatus;
+        try {
+            completionStatus = readInt(sis);
+        } catch (IOException ioe) {
+            sis.close();
+            throw ioe;
+        }
+
+        // If non-0 it means an error but we need to special-case the
+        // "load" command to ensure that the right exception is thrown.
+        if (completionStatus != 0) {
+            sis.close();
+            if (cmd.equals("load")) {
+                throw new AgentLoadException("Failed to load agent library");
+            } else {
+                throw new IOException("Command failed in target VM");
+            }
+        }
+
+        // Return the input stream so that the command output can be read
+        return sis;
+    }
+
+    // InputStream over a socket
+    private class SocketInputStream extends InputStream {
+        int s;
+
+        public SocketInputStream(int s) {
+            this.s = s;
+        }
+
+        public synchronized int read() throws IOException {
+            byte b[] = new byte[1];
+            int n = this.read(b, 0, 1);
+            if (n == 1) {
+                return b[0] & 0xff;
+            } else {
+                return -1;
+            }
+        }
+
+        public synchronized int read(byte[] bs, int off, int len) throws IOException {
+            if ((off < 0) || (off > bs.length) || (len < 0) ||
+                ((off + len) > bs.length) || ((off + len) < 0)) {
+                throw new IndexOutOfBoundsException();
+            } else if (len == 0)
+                return 0;
+
+            return SolarisVirtualMachine.read(s, bs, off, len);
+        }
+
+        public void close() throws IOException {
+            SolarisVirtualMachine.close(s);
+        }
+    }
+
+    // The door is attached to .java_pid<pid> in the temporary directory.
+    private int openDoor(int pid) throws IOException {
+        String path = tmpdir + "/.java_pid" + pid;;
+        fd = open(path);
+
+        // Check that the file owner/permission to avoid attaching to
+        // bogus process
+        try {
+            checkPermissions(path);
+        } catch (IOException ioe) {
+            close(fd);
+            throw ioe;
+        }
+        return fd;
+    }
+
+    // On Solaris/Linux a simple handshake is used to start the attach mechanism
+    // if not already started. The client creates a .attach_pid<pid> file in the
+    // target VM's working directory (or temporary directory), and the SIGQUIT
+    // handler checks for the file.
+    private File createAttachFile(int pid) throws IOException {
+        String fn = ".attach_pid" + pid;
+        String path = "/proc/" + pid + "/cwd/" + fn;
+        File f = new File(path);
+        try {
+            f.createNewFile();
+        } catch (IOException x) {
+            f = new File(tmpdir, fn);
+            f.createNewFile();
+        }
+        return f;
+    }
+
+    //-- native methods
+
+    static native int open(String path) throws IOException;
+
+    static native void close(int fd) throws IOException;
+
+    static native int read(int fd, byte buf[], int off, int buflen) throws IOException;
+
+    static native void checkPermissions(String path) throws IOException;
+
+    static native void sigquit(int pid) throws IOException;
+
+    // enqueue a command (and arguments) to the given door
+    static native int enqueue(int fd, String cmd, Object ... args)
+        throws IOException;
+
+    static {
+        System.loadLibrary("attach");
+    }
+}