/*
- * Copyright (c) 1995, 2008, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1995, 2016, 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 java.lang;
 
 /**
  * The {@code Compiler} class is provided to support Java-to-native-code
  * compilers and related services. By design, the {@code Compiler} class does
  * nothing; it serves as a placeholder for a JIT compiler implementation.
+ * If no compiler is available, these methods do nothing.
  *
- * <p> When the Java Virtual Machine first starts, it determines if the system
- * property {@code java.compiler} exists. (System properties are accessible
- * through {@link System#getProperty(String)} and {@link
- * System#getProperty(String, String)}.  If so, it is assumed to be the name of
- * a library (with a platform-dependent exact location and type); {@link
- * System#loadLibrary} is called to load that library. If this loading
- * succeeds, the function named {@code java_lang_Compiler_start()} in that
- * library is called.
- *
- * <p> If no compiler is available, these methods do nothing.
+ * @deprecated JIT compilers and their technologies vary too widely to
+ * be controlled effectively by a standardized interface. As such, many
+ * JIT compiler implementations ignore this interface, and are instead
+ * controllable by implementation-specific mechanisms such as command-line
+ * options. This class is subject to removal in a future version of Java SE.
  *
  * @author  Frank Yellin
- * @since   JDK1.0
+ * @since   1.0
  */
+@Deprecated(since="9", forRemoval=true)
 public final class Compiler  {
     private Compiler() {}               // don't make instances
 
-    private static native void initialize();
-
-    private static native void registerNatives();
-
-    static {
-        registerNatives();
-        java.security.AccessController.doPrivileged(
-            new java.security.PrivilegedAction<Void>() {
-                public Void run() {
-                    boolean loaded = false;
-                    String jit = System.getProperty("java.compiler");
-                    if ((jit != null) && (!jit.equals("NONE")) &&
-                        (!jit.equals("")))
-                    {
-                        try {
-                            System.loadLibrary(jit);
-                            initialize();
-                            loaded = true;
-                        } catch (UnsatisfiedLinkError e) {
-                            System.err.println("Warning: JIT compiler \"" +
-                              jit + "\" not found. Will use interpreter.");
-                        }
-                    }
-                    String info = System.getProperty("java.vm.info");
-                    if (loaded) {
-                        System.setProperty("java.vm.info", info + ", " + jit);
-                    } else {
-                        System.setProperty("java.vm.info", info + ", nojit");
-                    }
-                    return null;
-                }
-            });
-    }
-
     /**
      * Compiles the specified class.
      *
      * @param  clazz
      *         A class
      *
      * @return  {@code true} if the compilation succeeded; {@code false} if the
      *          compilation failed or no compiler is available
      *
      * @throws  NullPointerException
      *          If {@code clazz} is {@code null}
      */
-    public static native boolean compileClass(Class<?> clazz);
+    public static boolean compileClass(Class<?> clazz) {
+        return false;
+    }
 
     /**
      * Compiles all classes whose name matches the specified string.
      *
      * @param  string
      *         The name of the classes to compile
      *
      * @return  {@code true} if the compilation succeeded; {@code false} if the
      *          compilation failed or no compiler is available
      *
      * @throws  NullPointerException
      *          If {@code string} is {@code null}
      */
-    public static native boolean compileClasses(String string);
+    public static boolean compileClasses(String string) {
+        return false;
+    }
 
     /**
      * Examines the argument type and its fields and perform some documented
      * operation.  No specific operations are required.
      *
      * @param  any
      *         An argument
      *
      * @return  A compiler-specific value, or {@code null} if no compiler is
      *          available
      *
      * @throws  NullPointerException
      *          If {@code any} is {@code null}
      */
-    public static native Object command(Object any);
+    public static Object command(Object any) {
+        return null;
+    }
 
     /**
      * Cause the Compiler to resume operation.
      */
-    public static native void enable();
+    public static void enable() { }
 
     /**
      * Cause the Compiler to cease operation.
      */
-    public static native void disable();
+    public static void disable() { }
 }