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

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

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

JDK 11 JDeps tool source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\jdk.jdeps.

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

⏎ com/sun/tools/classfile/Descriptor.java

/*
 * Copyright (c) 2007, 2013, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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 */

package com.sun.tools.classfile;

import java.io.IOException;

/**
 * See JVMS, section 4.4.
 *
 *  <p><b>This is NOT part of any supported API.
 *  If you write code that depends on this, you do so at your own risk.
 *  This code and its internal interfaces are subject to change or
 *  deletion without notice.</b>
 */
public class Descriptor {
    public static class InvalidDescriptor extends DescriptorException {
        private static final long serialVersionUID = 1L;
        InvalidDescriptor(String desc) {
            this.desc = desc;
            this.index = -1;
        }

        InvalidDescriptor(String desc, int index) {
            this.desc = desc;
            this.index = index;
        }

        @Override
        public String getMessage() {
            // i18n
            if (index == -1)
                return "invalid descriptor \"" + desc + "\"";
            else
                return "descriptor is invalid at offset " + index + " in \"" + desc + "\"";
        }

        public final String desc;
        public final int index;

    }

    public Descriptor(ClassReader cr) throws IOException {
        this(cr.readUnsignedShort());
    }

    public Descriptor(int index) {
        this.index = index;

    }

    public String getValue(ConstantPool constant_pool) throws ConstantPoolException {
        return constant_pool.getUTF8Value(index);
    }

    public int getParameterCount(ConstantPool constant_pool)
            throws ConstantPoolException, InvalidDescriptor {
        String desc = getValue(constant_pool);
        int end = desc.indexOf(")");
        if (end == -1)
            throw new InvalidDescriptor(desc);
        parse(desc, 0, end + 1);
        return count;

    }

    public String getParameterTypes(ConstantPool constant_pool)
            throws ConstantPoolException, InvalidDescriptor {
        String desc = getValue(constant_pool);
        int end = desc.indexOf(")");
        if (end == -1)
            throw new InvalidDescriptor(desc);
        return parse(desc, 0, end + 1);
    }

    public String getReturnType(ConstantPool constant_pool)
            throws ConstantPoolException, InvalidDescriptor {
        String desc = getValue(constant_pool);
        int end = desc.indexOf(")");
        if (end == -1)
            throw new InvalidDescriptor(desc);
        return parse(desc, end + 1, desc.length());
    }

    public String getFieldType(ConstantPool constant_pool)
            throws ConstantPoolException, InvalidDescriptor {
        String desc = getValue(constant_pool);
        return parse(desc, 0, desc.length());
    }

    private String parse(String desc, int start, int end)
            throws InvalidDescriptor {
        int p = start;
        StringBuilder sb = new StringBuilder();
        int dims = 0;
        count = 0;

        while (p < end) {
            String type;
            char ch;
            switch (ch = desc.charAt(p++)) {
                case '(':
                    sb.append('(');
                    continue;

                case ')':
                    sb.append(')');
                    continue;

                case '[':
                    dims++;
                    continue;

                case 'B':
                    type = "byte";
                    break;

                case 'C':
                    type = "char";
                    break;

                case 'D':
                    type = "double";
                    break;

                case 'F':
                    type = "float";
                    break;

                case 'I':
                    type = "int";
                    break;

                case 'J':
                    type = "long";
                    break;

                case 'L':
                    int sep = desc.indexOf(';', p);
                    if (sep == -1)
                        throw new InvalidDescriptor(desc, p - 1);
                    type = desc.substring(p, sep).replace('/', '.');
                    p = sep + 1;
                    break;

                case 'S':
                    type = "short";
                    break;

                case 'Z':
                    type = "boolean";
                    break;

                case 'V':
                    type = "void";
                    break;

                default:
                    throw new InvalidDescriptor(desc, p - 1);
            }

            if (sb.length() > 1 && sb.charAt(0) == '(')
                sb.append(", ");
            sb.append(type);
            for ( ; dims > 0; dims-- )
                sb.append("[]");

            count++;
        }

        return sb.toString();
    }

    public final int index;
    private int count;
}

⏎ com/sun/tools/classfile/Descriptor.java

Or download all of them as a single archive file:

File name: jdk.jdeps-11.0.1-src.zip
File size: 244145 bytes
Release date: 2018-11-04
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