JDK 11 jdk.hotspot.agent.jmod is the JMOD file for JDK 11 Hotspot Agent module.

JDK 11 Hotspot Agent module compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\jdk.hotspot.agent.jmod.

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

JDK 11 Hotspot Agent module source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\jdk.hotspot.agent.

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

⏎ sun/jvm/hotspot/gc/g1/HeapRegionManager.java

/*
 * Copyright (c) 2011, 2017, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 */

package sun.jvm.hotspot.gc.g1;

import java.util.Iterator;
import java.util.Observable;
import java.util.Observer;

import sun.jvm.hotspot.debugger.Address;
import sun.jvm.hotspot.runtime.VM;
import sun.jvm.hotspot.runtime.VMObject;
import sun.jvm.hotspot.runtime.VMObjectFactory;
import sun.jvm.hotspot.types.AddressField;
import sun.jvm.hotspot.types.CIntegerField;
import sun.jvm.hotspot.types.Type;
import sun.jvm.hotspot.types.TypeDataBase;

// Mirror class for HeapRegionManager.

public class HeapRegionManager extends VMObject {
    // G1HeapRegionTable _regions
    static private long regionsFieldOffset;
    // uint _committed_length
    static private CIntegerField numCommittedField;

    static {
        VM.registerVMInitializedObserver(new Observer() {
                public void update(Observable o, Object data) {
                    initialize(VM.getVM().getTypeDataBase());
                }
            });
    }

    static private synchronized void initialize(TypeDataBase db) {
        Type type = db.lookupType("HeapRegionManager");

        regionsFieldOffset = type.getField("_regions").getOffset();
        numCommittedField = type.getCIntegerField("_num_committed");
    }

    private G1HeapRegionTable regions() {
        Address regionsAddr = addr.addOffsetTo(regionsFieldOffset);
        return (G1HeapRegionTable) VMObjectFactory.newObject(G1HeapRegionTable.class,
                                                             regionsAddr);
    }

    public long capacity() {
        return length() * HeapRegion.grainBytes();
    }

    public long length() {
        return regions().length();
    }

    public long committedLength() {
        return numCommittedField.getValue(addr);
    }

    public Iterator<HeapRegion> heapRegionIterator() {
        return regions().heapRegionIterator(length());
    }

    public HeapRegionManager(Address addr) {
        super(addr);
    }

    public HeapRegion getByAddress(Address addr) {
      return regions().getByAddress(addr);
    }
}

⏎ sun/jvm/hotspot/gc/g1/HeapRegionManager.java

Or download all of them as a single archive file:

File name: jdk.hotspot.agent-11.0.1-src.zip
File size: 1243786 bytes
Release date: 2018-11-04
Download 

⇒ JDK 11 jdk.httpserver.jmod - HTTP Server Module

⇐ JDK 11 jdk.editpad.jmod - Edit Pad Module

⇑ Download and Use JDK 11

⇑⇑ FAQ for JDK (Java Development Kit)