JDK 11 jdk.jfr.jmod is the JMOD file for JDK 11 JFR module.

JDK 11 JFR module compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\jdk.jfr.jmod.

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

JDK 11 JFR module source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\jdk.jfr.

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

⏎ jdk/jfr/internal/cmd/HelpCommand.java

/*
 * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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package jdk.jfr.internal.cmd;

import java.util.Deque;

final class HelpCommand extends Command {

    @Override
    public String getOptionSyntax() {
        return "[<command>]";
    }

    @Override
    public void displayOptionUsage() {
        println("  <command>   The name of the command to get help for");
        println();
        Command.displayAvailableCommands();
    }

    @Override
    public String getName() {
        return "help";
    }

    @Override
    public String getDescription() {
        return "Display help about a command";
    }

    @Override
    public void execute(Deque<String> options) {
        if (options.isEmpty()) {
            displayUsage();
        } else {
            ensureMaxArgumentCount(options, 1);
            String commandName = options.remove();
            Command c = Command.valueOf(commandName);
            if (c == null) {
                userFailed("Unknown command " + commandName);
            }
            c.displayUsage();
        }
    }
}

⏎ jdk/jfr/internal/cmd/HelpCommand.java

Or download all of them as a single archive file:

File name: jdk.jfr-11.0.1-src.zip
File size: 237632 bytes
Release date: 2018-11-04
Download 

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