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/io/NotSerializableException.java

/*
 * Copyright (c) 1996, 2005, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 */

package java.io;

/**
 * Thrown when an instance is required to have a Serializable interface.
 * The serialization runtime or the class of the instance can throw
 * this exception. The argument should be the name of the class.
 *
 * @author  unascribed
 * @since   1.1
 */
public class NotSerializableException extends ObjectStreamException {

    private static final long serialVersionUID = 2906642554793891381L;

    /**
     * Constructs a NotSerializableException object with message string.
     *
     * @param classname Class of the instance being serialized/deserialized.
     */
    public NotSerializableException(String classname) {
        super(classname);
    }

    /**
     *  Constructs a NotSerializableException object.
     */
    public NotSerializableException() {
        super();
    }
}

⏎ java/io/NotSerializableException.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
Download 

⇒ JDK 11 java.compiler.jmod - Compiler Module

⇐ JDK 11 Modules List

⇑ Download and Use JDK 11

⇑⇑ FAQ for JDK (Java Development Kit)