JDK 11 java.base.jmod is the JMOD file for JDK 11 Base module.

JDK 11 Base module compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\java.base.jmod.

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

JDK 11 Base module source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\java.base.

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

⏎ java/security/Certificate.java

/*
 * Copyright (c) 1996, 2017, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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package java.security;

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

/**
 * <p>This is an interface of abstract methods for managing a
 * variety of identity certificates.
 * An identity certificate is a guarantee by a principal that
 * a public key is that of another principal.  (A principal represents
 * an entity such as an individual user, a group, or a corporation.)
 *
 * <p>In particular, this interface is intended to be a common
 * abstraction for constructs that have different formats but
 * important common uses.  For example, different types of
 * certificates, such as X.509 certificates and PGP certificates,
 * share general certificate functionality (the need to encode and
 * decode certificates) and some types of information, such as a
 * public key, the principal whose key it is, and the guarantor
 * guaranteeing that the public key is that of the specified
 * principal. So an implementation of X.509 certificates and an
 * implementation of PGP certificates can both utilize the Certificate
 * interface, even though their formats and additional types and
 * amounts of information stored are different.
 *
 * <p><b>Important</b>: This interface is useful for cataloging and
 * grouping objects sharing certain common uses. It does not have any
 * semantics of its own. In particular, a Certificate object does not
 * make any statement as to the <i>validity</i> of the binding. It is
 * the duty of the application implementing this interface to verify
 * the certificate and satisfy itself of its validity.
 *
 * @author Benjamin Renaud
 * @since 1.1
 * @deprecated This class is deprecated and subject to removal in a future
 *     version of Java SE. It has been replaced by
 *     {@code java.security.cert.Certificate} and related classes.
 * @see java.security.cert.Certificate
 */
@Deprecated(since="1.2", forRemoval=true)
public interface Certificate {

    /**
     * Returns the guarantor of the certificate, that is, the principal
     * guaranteeing that the public key associated with this certificate
     * is that of the principal associated with this certificate. For X.509
     * certificates, the guarantor will typically be a Certificate Authority
     * (such as the United States Postal Service or Verisign, Inc.).
     *
     * @return the guarantor which guaranteed the principal-key
     * binding.
     */
    public abstract Principal getGuarantor();

    /**
     * Returns the principal of the principal-key pair being guaranteed by
     * the guarantor.
     *
     * @return the principal to which this certificate is bound.
     */
    public abstract Principal getPrincipal();

    /**
     * Returns the key of the principal-key pair being guaranteed by
     * the guarantor.
     *
     * @return the public key that this certificate certifies belongs
     * to a particular principal.
     */
    public abstract PublicKey getPublicKey();

    /**
     * Encodes the certificate to an output stream in a format that can
     * be decoded by the {@code decode} method.
     *
     * @param stream the output stream to which to encode the
     * certificate.
     *
     * @exception KeyException if the certificate is not
     * properly initialized, or data is missing, etc.
     *
     * @exception IOException if a stream exception occurs while
     * trying to output the encoded certificate to the output stream.
     *
     * @see #decode
     * @see #getFormat
     */
    public abstract void encode(OutputStream stream)
        throws KeyException, IOException;

    /**
     * Decodes a certificate from an input stream. The format should be
     * that returned by {@code getFormat} and produced by
     * {@code encode}.
     *
     * @param stream the input stream from which to fetch the data
     * being decoded.
     *
     * @exception KeyException if the certificate is not properly initialized,
     * or data is missing, etc.
     *
     * @exception IOException if an exception occurs while trying to input
     * the encoded certificate from the input stream.
     *
     * @see #encode
     * @see #getFormat
     */
    public abstract void decode(InputStream stream)
        throws KeyException, IOException;


    /**
     * Returns the name of the coding format. This is used as a hint to find
     * an appropriate parser. It could be "X.509", "PGP", etc. This is
     * the format produced and understood by the {@code encode}
     * and {@code decode} methods.
     *
     * @return the name of the coding format.
     */
    public abstract String getFormat();

    /**
     * Returns a string that represents the contents of the certificate.
     *
     * @param detailed whether or not to give detailed information
     * about the certificate
     *
     * @return a string representing the contents of the certificate
     */
    public String toString(boolean detailed);
}

⏎ java/security/Certificate.java

Or download all of them as a single archive file:

File name: java.base-11.0.1-src.zip
File size: 8740354 bytes
Release date: 2018-11-04
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