--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/java/lang/management/CompilationMXBean.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,97 @@
+/*
+ * Copyright 2003-2004 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.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun 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 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 java.lang.management;
+
+/**
+ * The management interface for the compilation system of
+ * the Java virtual machine.
+ *
+ * <p> A Java virtual machine has a single instance of the implementation
+ * class of this interface.  This instance implementing this interface is
+ * an <a href="ManagementFactory.html#MXBean">MXBean</a>
+ * that can be obtained by calling
+ * the {@link ManagementFactory#getCompilationMXBean} method or
+ * from the {@link ManagementFactory#getPlatformMBeanServer
+ * platform <tt>MBeanServer</tt>} method.
+ *
+ * <p>The <tt>ObjectName</tt> for uniquely identifying the MXBean for
+ * the compilation system within an MBeanServer is:
+ * <blockquote>
+ *  {@link ManagementFactory#COMPILATION_MXBEAN_NAME
+ *         <tt>java.lang:type=Compilation</tt>}
+ * </blockquote>
+ *
+ * @see <a href="../../../javax/management/package-summary.html">
+ *      JMX Specification.</a>
+ * @see <a href="package-summary.html#examples">
+ *      Ways to Access MXBeans</a>
+ *
+ * @author  Mandy Chung
+ * @since   1.5
+ */
+public interface CompilationMXBean {
+    /**
+     * Returns the name of the Just-in-time (JIT) compiler.
+     *
+     * @return the name of the JIT compiler.
+     */
+    public java.lang.String    getName();
+
+    /**
+     * Tests if the Java virtual machine supports the monitoring of
+     * compilation time.
+     *
+     * @return <tt>true</tt> if the monitoring of compilation time is
+     * supported ; <tt>false</tt> otherwise.
+     */
+    public boolean isCompilationTimeMonitoringSupported();
+
+    /**
+     * Returns the approximate accumlated elapsed time (in milliseconds)
+     * spent in compilation.
+     * If multiple threads are used for compilation, this value is
+     * summation of the approximate time that each thread spent in compilation.
+     *
+     * <p>This method is optionally supported by the platform.
+     * A Java virtual machine implementation may not support the compilation
+     * time monitoring. The {@link #isCompilationTimeMonitoringSupported}
+     * method can be used to determine if the Java virtual machine
+     * supports this operation.
+     *
+     * <p> This value does not indicate the level of performance of
+     * the Java virtual machine and is not intended for performance comparisons
+     * of different virtual machine implementations.
+     * The implementations may have different definitions and different
+     * measurements of the compilation time.
+     *
+     * @return Compilation time in milliseconds
+     * @throws java.lang.UnsupportedOperationException if the Java
+     * virtual machine does not support
+     * this operation.
+     *
+     */
+    public long                getTotalCompilationTime();
+}