JDK 11 jdk.jconsole.jmod is the JMOD file for JDK 11 JConsole tool, which can be invoked by the "jconsole" command.

JDK 11 JConsole tool compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\jdk.jconsole.jmod.

JDK 11 JConsole tool compiled class files are also linked and stored in the \fyicenter\jdk-11.0.1\lib\modules JImage file.

JDK 11 JConsole tool source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\jdk.jconsole.

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

⏎ sun/tools/jconsole/MemoryPoolStat.java

/*
 * Copyright (c) 2004, 2012, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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package sun.tools.jconsole;

import java.lang.management.MemoryUsage;

public class MemoryPoolStat {
    private String      poolName;
    private long        usageThreshold;
    private MemoryUsage usage;
    private long        lastGcId;
    private long        lastGcStartTime;
    private long        lastGcEndTime;
    private long        collectThreshold;
    private MemoryUsage beforeGcUsage;
    private MemoryUsage afterGcUsage;

    MemoryPoolStat(String name,
                   long usageThreshold,
                   MemoryUsage usage,
                   long lastGcId,
                   long lastGcStartTime,
                   long lastGcEndTime,
                   long collectThreshold,
                   MemoryUsage beforeGcUsage,
                   MemoryUsage afterGcUsage) {
        this.poolName = name;
        this.usageThreshold = usageThreshold;
        this.usage = usage;
        this.lastGcId = lastGcId;
        this.lastGcStartTime = lastGcStartTime;
        this.lastGcEndTime = lastGcEndTime;
        this.collectThreshold = collectThreshold;
        this.beforeGcUsage = beforeGcUsage;
        this.afterGcUsage = afterGcUsage;
    }

    /**
     * Returns the memory pool name.
     */
    public String getPoolName() {
        return poolName;
    }

    /**
     * Returns the current memory usage.
     */
    public MemoryUsage getUsage() {
        return usage;
    }

    /**
     * Returns the current usage threshold.
     * -1 if not supported.
     */
    public long getUsageThreshold() {
        return usageThreshold;
    }

    /**
     * Returns the current collection usage threshold.
     * -1 if not supported.
     */
    public long getCollectionUsageThreshold() {
        return collectThreshold;
    }

    /**
     * Returns the Id of GC.
     */
    public long getLastGcId() {
        return lastGcId;
    }


    /**
     * Returns the start time of the most recent GC on
     * the memory pool for this statistics in milliseconds.
     *
     * Return 0 if no GC occurs.
     */
    public long getLastGcStartTime() {
        return lastGcStartTime;
    }

    /**
     * Returns the end time of the most recent GC on
     * the memory pool for this statistics in milliseconds.
     *
     * Return 0 if no GC occurs.
     */
    public long getLastGcEndTime() {
        return lastGcEndTime;
    }

    /**
     * Returns the memory usage before the most recent GC started.
     * null if no GC occurs.
     */
    public MemoryUsage getBeforeGcUsage() {
        return beforeGcUsage;
    }

    /**
     * Returns the memory usage after the most recent GC finished.
     * null if no GC occurs.
     */
    public MemoryUsage getAfterGcUsage() {
        return afterGcUsage;
    }
}

⏎ sun/tools/jconsole/MemoryPoolStat.java

Or download all of them as a single archive file:

File name: jdk.jconsole-11.0.1-src.zip
File size: 164713 bytes
Release date: 2018-11-04
Download 

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