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/debugger/win32/coff/DebugVC50SegDesc.java

/*
 * Copyright (c) 2001, 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.debugger.win32.coff;

/** Models a segment descriptor in {@link
    sun.jvm.hotspot.debugger.win32.coff.DebugVC50SSSegMap}. */

public interface DebugVC50SegDesc {
  /** Descriptor flags bit field. See {@link
      sun.jvm.hotspot.debugger.win32.coff.DebugVC50SegDescEnums}. */
  public short getFlags();

  /** The logical overlay number. */
  public short getOverlayNum();

  /** The group index into the descriptor array. The group index must
      either be 0 or cSegLog <= group < cSeg. */
  public short getGroup();

  /** <p> This value has different meanings depending upon the values
      of fAbs and fSel in the flags bit array and ovl: </p>

      <p>
      <table>
      <tr> <td> fAbs <td> fSel <td> ovl <td> Operation
      <tr> <td> 0    <td> 0    <td> 0   <td> Frame is added to PSP + 0x10 if not a .com file
      <tr> <td> 0    <td> 0    <td> 0   <td> Frame is added to PSP if it is a .com file
      <tr> <td> 0    <td> 0    <td> != 0 <td> Frame is added to current overlay base
      <tr> <td> 1    <td> 0    <td> x   <td> Frame is absolute address
      <tr> <td> 0    <td> 1    <td> x   <td> Frame contains a selector
      </table>
      </p>
  */
  public short getFrame();

  /** The byte index of the segment or group name in the sstSegName
      table. A value of 0xffff indicates there is no name. */
  public short getName();

  /** The byte index of the class name in the sstSegName table. A
      value of 0xffff indicates there is no name.  */
  public short getClassName();

  /** Byte offset of the logical segment within the specified physical
      segment. If fGroup is set in flags, offset is the offset of the
      group in the physical segment. Currently, all groups define
      physical segments so offset will be zero for groups. */
  public int   getOffset();

  /** Byte count of the logical segment or group. */
  public int   getSize();
}

⏎ sun/jvm/hotspot/debugger/win32/coff/DebugVC50SegDesc.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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