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/shared/CollectedHeap.java

/*
 * Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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package sun.jvm.hotspot.gc.shared;

import java.io.*;
import java.util.*;

import sun.jvm.hotspot.debugger.*;
import sun.jvm.hotspot.memory.*;
import sun.jvm.hotspot.runtime.*;
import sun.jvm.hotspot.types.*;

public abstract class CollectedHeap extends VMObject {
  private static long         reservedFieldOffset;

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

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

    reservedFieldOffset = type.getField("_reserved").getOffset();
  }

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

  /** Returns the lowest address of the heap. */
  public Address start() {
    return reservedRegion().start();
  }

  public long capacity() { return 0; }
  public long used()     { return 0; }

  public MemRegion reservedRegion() {
    return new MemRegion(addr.addOffsetTo(reservedFieldOffset));
  }

  public boolean isIn(Address a) {
    return isInReserved(a);
  }

  public boolean isInReserved(Address a) {
    return reservedRegion().contains(a);
  }

  public abstract CollectedHeapName kind();

  public String oopAddressDescription(OopHandle handle) {
      return handle.toString();
  }

  public OopHandle oop_load_at(OopHandle handle, long offset) {
      return handle.getOopHandleAt(offset);
  }

  public void print() { printOn(System.out); }
  public void printOn(PrintStream tty) {
    MemRegion mr = reservedRegion();
    tty.println("unknown subtype of CollectedHeap @ " + getAddress() + " (" +
                mr.start() + "," + mr.end() + ")");
  }
}

⏎ sun/jvm/hotspot/gc/shared/CollectedHeap.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
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