jdk/src/jdk.jvmstat/share/classes/sun/jvmstat/perfdata/monitor/CountedTimerTaskUtils.java
changeset 43716 d5fb222e6151
parent 43332 88688213d2e3
parent 43537 fe3858b549c8
child 43717 303ca4a590e7
--- a/jdk/src/jdk.jvmstat/share/classes/sun/jvmstat/perfdata/monitor/CountedTimerTaskUtils.java	Mon Jan 30 09:09:34 2017 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,73 +0,0 @@
-/*
- * Copyright (c) 2004, 2014, 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.jvmstat.perfdata.monitor;
-
-import java.util.*;
-
-/**
- * Utility methods for use with {@link CountedTimerTask} instances.
- *
- * @author Brian Doherty
- * @since 1.5
- */
-public class CountedTimerTaskUtils {
-
-    // 8028357 removed old, inefficient debug logging
-
-    /**
-     * Reschedule a CountedTimeTask at a different interval. Probably not
-     * named correctly. This method cancels the old task and computes the
-     * delay for starting the new task based on the new interval and the
-     * time at which the old task was last executed.
-     *
-     * @param timer the Timer for the task
-     * @param oldTask the old Task
-     * @param newTask the new Task
-     * @param oldInterval the old interval; use for debugging output
-     *                    purposes only.
-     * @param newInterval scheduling interval in milliseconds
-     */
-    public static void reschedule(Timer timer, CountedTimerTask oldTask,
-                                  CountedTimerTask newTask, int oldInterval,
-                                  int newInterval) {
-
-        long now = System.currentTimeMillis();
-        long lastRun = oldTask.scheduledExecutionTime();
-        long expired = now - lastRun;
-
-        /*
-         * check if original task ever ran - if not, then lastRun is
-         * undefined and we simply set the delay to 0.
-         */
-        long delay = 0;
-        if (oldTask.executionCount() > 0) {
-            long remainder = newInterval - expired;
-            delay = remainder >= 0 ? remainder : 0;
-        }
-
-        timer.schedule(newTask, delay, newInterval);
-    }
-}