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

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

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

JDK 11 JCmd source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\jdk.jcmd.

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

⏎ sun/tools/jstat/OptionLister.java

/*
 * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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package sun.tools.jstat;

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

/**
 * A class for listing the available options in the jstat_options file.
 *
 * @author Brian Doherty
 * @since 1.5
 */
public class OptionLister {
    private static final boolean debug = false;
    private List<URL> sources;

    public OptionLister(List<URL> sources) {
        this.sources = sources;
    }

    public void print(PrintStream ps) {
        Comparator<OptionFormat> c = new Comparator<OptionFormat>() {
               public int compare(OptionFormat o1, OptionFormat o2) {
                   OptionFormat of1 = o1;
                   OptionFormat of2 = o2;
                   return (of1.getName().compareTo(of2.getName()));
               }
        };

        Set<OptionFormat> options = new TreeSet<OptionFormat>(c);

        for (URL u : sources) {
            try {
                Reader r = new BufferedReader(
                        new InputStreamReader(u.openStream()));
                Set<OptionFormat> s = new Parser(r).parseOptions();
                options.addAll(s);
            } catch (IOException e) {
                if (debug) {
                    System.err.println(e.getMessage());
                    e.printStackTrace();
                }
            } catch (ParserException e) {
                // Exception in parsing the options file.
                System.err.println(u + ": " + e.getMessage());
                System.err.println("Parsing of " + u + " aborted");
            }
        }

        for ( OptionFormat of : options) {
            if (of.getName().compareTo("timestamp") == 0) {
              // ignore the special timestamp OptionFormat.
              continue;
            }
            ps.println("-" + of.getName());
        }
    }
}

⏎ sun/tools/jstat/OptionLister.java

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