JDK 11 jdk.internal.jvmstat.jmod - Internal JVM Stat Module

JDK 11 jdk.internal.JVM Stat.jmod is the JMOD file for JDK 11 Internal Jvmstat module.

JDK 11 Internal JVM Stat module compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\jdk.internal.jvmstat.jmod.

JDK 11 Internal JVM Stat module compiled class files are also linked and stored in the \fyicenter\jdk-11.0.1\lib\modules JImage file.

JDK 11 Internal JVM Stat module source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\jdk.internal.jvmstat.

You can click and view the content of each source code file in the list below.

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sun/jvmstat/monitor/Units.java

/*
 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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package sun.jvmstat.monitor;

/**
 * Provides a typesafe enumeration for describing units of measurement
 * attribute for instrumentation objects.
 *
 * @author   Brian Doherty
 */
public class Units implements java.io.Serializable {

    /* The enumeration values for this typesafe enumeration must be
     * kept in synchronization with the Units enum in the perfData.hpp file
     * in the HotSpot source base.
     */

    private static final int NUNITS=8;

    private static Units[] map = new Units[NUNITS];

    private final String name;
    private final int value;

    /**
     * An Invalid Units value.
     */
    public static final Units INVALID = new Units("Invalid", 0);

    /**
     * Units attribute representing unit-less quantities.
     */
    public static final Units NONE = new Units("None", 1);

    /**
     * Units attribute representing Bytes.
     */
    public static final Units BYTES = new Units("Bytes", 2);

    /**
     * Units attribute representing Ticks.
     */
    public static final Units TICKS = new Units("Ticks", 3);

    /**
     * Units attribute representing a count of events.
     */
    public static final Units EVENTS = new Units("Events", 4);

    /**
     * Units attribute representing String data. Although not really
     * a unit of measure, this Units value serves to distinguish String
     * instrumentation objects from instrumentation objects of other types.
     */
    public static final Units STRING = new Units("String", 5);

    /**
     * Units attribute representing Hertz (frequency).
     */
    public static final Units HERTZ = new Units("Hertz", 6);

    /**
     * Returns a string describing this Unit of measurement attribute
     *
     * @return String - a descriptive string for this enum.
     */
    public String toString() {
        return name;
    }

    /**
     * Returns the integer representation of this Units attribute
     *
     * @return int - an integer representation of this Units attribute.
     */
    public int intValue() {
        return value;
    }

    /**
     * Maps an integer value to its corresponding Units attribute.
     * If the integer value does not have a corresponding Units enum
     * value, then {@link Units#INVALID} is returned.
     *
     * @param value an integer representation of counter Units
     * @return Units - the Units object for the given <code>value</code>
     *                 or {@link Units#INVALID} if out of range.
     */
    public static Units toUnits(int value) {

        if (value < 0 || value >= map.length || map[value] == null) {
            return INVALID;
        }

        return map[value];
    }

    private Units(String name, int value) {
        this.name = name;
        this.value = value;
        map[value] = this;
    }

    private static final long serialVersionUID = 6992337162326171013L;
}

sun/jvmstat/monitor/Units.java

 

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