--- a/jdk/src/jdk.runtime/share/classes/sun/tracing/dtrace/Activation.java	Thu Feb 19 16:36:35 2015 -0800
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,107 +0,0 @@
-/*
- * Copyright (c) 2008, 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.tracing.dtrace;
-
-import java.lang.ref.WeakReference;
-import java.lang.ref.ReferenceQueue;
-import java.security.Permission;
-import java.util.HashSet;
-
-class Activation {
-    private SystemResource resource;
-    private int referenceCount;
-
-    Activation(String moduleName, DTraceProvider[] providers) {
-        SecurityManager security = System.getSecurityManager();
-        if (security != null) {
-            Permission perm =
-                new RuntimePermission("com.sun.tracing.dtrace.createProvider");
-            security.checkPermission(perm);
-        }
-        referenceCount = providers.length;
-        for (DTraceProvider p : providers) {
-            p.setActivation(this);
-        }
-        resource = new SystemResource(
-            this, JVM.activate(moduleName, providers));
-    }
-
-    void disposeProvider(DTraceProvider p) {
-        if (--referenceCount == 0) {
-            resource.dispose();
-        }
-    }
-}
-
-/**
- * The native resource part of an Activation.
- *
- * This holds the native handle.
- *
- * If the user loses a reference to a set of Providers without disposing them,
- * and GC determines the Activation is unreachable, then the next
- * activation or flush call will automatically dispose the unreachable objects
- *
- * The SystemResource instances are creating during activation, and
- * unattached during disposal.  When created, they always have a
- * strong reference to them via the {@code resources} static member.  Explicit
- * {@code dispose} calls will unregister the native resource and remove
- * references to the SystemResource object.  Absent an explicit dispose,
- * when their associated Activation object becomes garbage, the SystemResource
- * object will be enqueued on the reference queue and disposed at the
- * next call to {@code flush}.
- */
-class SystemResource extends WeakReference<Activation> {
-
-    private long handle;
-
-    private static ReferenceQueue<Activation> referenceQueue =
-        referenceQueue = new ReferenceQueue<Activation>();
-    static HashSet<SystemResource> resources = new HashSet<SystemResource>();
-
-    SystemResource(Activation activation, long handle) {
-        super(activation, referenceQueue);
-        this.handle = handle;
-        flush();
-        resources.add(this);
-    }
-
-    void dispose() {
-        JVM.dispose(handle);
-        resources.remove(this);
-        handle = 0;
-    }
-
-    static void flush() {
-        SystemResource resource = null;
-        while ((resource = (SystemResource)referenceQueue.poll()) != null) {
-            if (resource.handle != 0) {
-                resource.dispose();
-            }
-        }
-    }
-}
-