--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.attach/linux/classes/sun/tools/attach/AttachProviderImpl.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2005, 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.VirtualMachineDescriptor;
+import com.sun.tools.attach.AttachNotSupportedException;
+import java.io.IOException;
+
+/*
+ * An AttachProvider implementation for Linux that uses a UNIX domain
+ * socket.
+ */
+public class AttachProviderImpl extends HotSpotAttachProvider {
+
+    public AttachProviderImpl() {
+    }
+
+    public String name() {
+        return "sun";
+    }
+
+    public String type() {
+        return "socket";
+    }
+
+    public VirtualMachine attachVirtualMachine(String vmid)
+        throws AttachNotSupportedException, IOException
+    {
+        checkAttachPermission();
+
+        // AttachNotSupportedException will be thrown if the target VM can be determined
+        // to be not attachable.
+        testAttachable(vmid);
+
+        return new VirtualMachineImpl(this, vmid);
+    }
+
+    public VirtualMachine attachVirtualMachine(VirtualMachineDescriptor vmd)
+        throws AttachNotSupportedException, IOException
+    {
+        if (vmd.provider() != this) {
+            throw new AttachNotSupportedException("provider mismatch");
+        }
+        // To avoid re-checking if the VM if attachable, we check if the descriptor
+        // is for a hotspot VM - these descriptors are created by the listVirtualMachines
+        // implementation which only returns a list of attachable VMs.
+        if (vmd instanceof HotSpotVirtualMachineDescriptor) {
+            assert ((HotSpotVirtualMachineDescriptor)vmd).isAttachable();
+            checkAttachPermission();
+            return new VirtualMachineImpl(this, vmd.id());
+        } else {
+            return attachVirtualMachine(vmd.id());
+        }
+    }
+
+}