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.

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⏎ java/security/spec/RSAPrivateCrtKeySpec.java

/*
 * Copyright (c) 1998, 2018, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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 */

package java.security.spec;

import java.math.BigInteger;

/**
 * This class specifies an RSA private key, as defined in the
 * <a href="https://tools.ietf.org/rfc/rfc8017.txt">PKCS#1 v2.2</a> standard,
 * using the Chinese Remainder Theorem (CRT) information values for efficiency.
 *
 * @author Jan Luehe
 * @since 1.2
 *
 *
 * @see java.security.Key
 * @see java.security.KeyFactory
 * @see KeySpec
 * @see PKCS8EncodedKeySpec
 * @see RSAPrivateKeySpec
 * @see RSAPublicKeySpec
 */

public class RSAPrivateCrtKeySpec extends RSAPrivateKeySpec {

    private final BigInteger publicExponent;
    private final BigInteger primeP;
    private final BigInteger primeQ;
    private final BigInteger primeExponentP;
    private final BigInteger primeExponentQ;
    private final BigInteger crtCoefficient;

   /**
    * Creates a new {@code RSAPrivateCrtKeySpec}.
    *
    * @param modulus the modulus n
    * @param publicExponent the public exponent e
    * @param privateExponent the private exponent d
    * @param primeP the prime factor p of n
    * @param primeQ the prime factor q of n
    * @param primeExponentP this is d mod (p-1)
    * @param primeExponentQ this is d mod (q-1)
    * @param crtCoefficient the Chinese Remainder Theorem
    * coefficient q-1 mod p
    */
    public RSAPrivateCrtKeySpec(BigInteger modulus,
                                BigInteger publicExponent,
                                BigInteger privateExponent,
                                BigInteger primeP,
                                BigInteger primeQ,
                                BigInteger primeExponentP,
                                BigInteger primeExponentQ,
                                BigInteger crtCoefficient) {
        this(modulus, publicExponent, privateExponent, primeP, primeQ,
             primeExponentP, primeExponentQ, crtCoefficient, null);
    }

   /**
    * Creates a new {@code RSAPrivateCrtKeySpec} with additional
    * key parameters.
    *
    * @param modulus the modulus n
    * @param publicExponent the public exponent e
    * @param privateExponent the private exponent d
    * @param primeP the prime factor p of n
    * @param primeQ the prime factor q of n
    * @param primeExponentP this is d mod (p-1)
    * @param primeExponentQ this is d mod (q-1)
    * @param crtCoefficient the Chinese Remainder Theorem
    * coefficient q-1 mod p
    * @param keyParams the parameters associated with key
    * @since 11
    */
    public RSAPrivateCrtKeySpec(BigInteger modulus,
                                BigInteger publicExponent,
                                BigInteger privateExponent,
                                BigInteger primeP,
                                BigInteger primeQ,
                                BigInteger primeExponentP,
                                BigInteger primeExponentQ,
                                BigInteger crtCoefficient,
                                AlgorithmParameterSpec keyParams) {
        super(modulus, privateExponent, keyParams);
        this.publicExponent = publicExponent;
        this.primeP = primeP;
        this.primeQ = primeQ;
        this.primeExponentP = primeExponentP;
        this.primeExponentQ = primeExponentQ;
        this.crtCoefficient = crtCoefficient;
    }

    /**
     * Returns the public exponent.
     *
     * @return the public exponent
     */
    public BigInteger getPublicExponent() {
        return this.publicExponent;
    }

    /**
     * Returns the primeP.

     * @return the primeP
     */
    public BigInteger getPrimeP() {
        return this.primeP;
    }

    /**
     * Returns the primeQ.
     *
     * @return the primeQ
     */
    public BigInteger getPrimeQ() {
        return this.primeQ;
    }

    /**
     * Returns the primeExponentP.
     *
     * @return the primeExponentP
     */
    public BigInteger getPrimeExponentP() {
        return this.primeExponentP;
    }

    /**
     * Returns the primeExponentQ.
     *
     * @return the primeExponentQ
     */
    public BigInteger getPrimeExponentQ() {
        return this.primeExponentQ;
    }

    /**
     * Returns the crtCoefficient.
     *
     * @return the crtCoefficient
     */
    public BigInteger getCrtCoefficient() {
        return this.crtCoefficient;
    }
}

⏎ java/security/spec/RSAPrivateCrtKeySpec.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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