JDK 11 jdk.rmic.jmod is the JMOD file for JDK 11 RMI (Remote Method Invocation) Compiler Tool tool, which can be invoked by the "rmic" command.

JDK 11 RMI Compiler Tool tool compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\jdk.rmic.jmod.

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

JDK 11 RMI Compiler Tool tool source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\jdk.rmic.

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

⏎ sun/tools/tree/IntExpression.java

/*
 * Copyright (c) 1994, 2003, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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package sun.tools.tree;

import sun.tools.java.*;
import java.io.PrintStream;

/**
 * WARNING: The contents of this source file are not part of any
 * supported API.  Code that depends on them does so at its own risk:
 * they are subject to change or removal without notice.
 */
public
class IntExpression extends IntegerExpression {
    /**
     * Constructor
     */
    public IntExpression(long where, int value) {
        super(INTVAL, where, Type.tInt, value);
    }

    /**
     * Equality, this is needed so that switch statements
     * can put IntExpressions in a hashtable
     */
    public boolean equals(Object obj) {
        if ((obj != null) && (obj instanceof IntExpression)) {
            return value == ((IntExpression)obj).value;
        }
        return false;
    }

    /**
     * Hashcode, this is needed so that switch statements
     * can put IntExpressions in a hashtable
     */
    public int hashCode() {
        return value;
    }

    /**
     * Print
     */
    public void print(PrintStream out) {
        out.print(value);
    }
}

⏎ sun/tools/tree/IntExpression.java

Or download all of them as a single archive file:

File name: jdk.rmic-11.0.1-src.zip
File size: 418901 bytes
Release date: 2018-11-04
Download 

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