What Is fop.jar? I got it from the fop-2.7-bin.zip.

fop.jar in fop-2.7-bin.zip is the JAR file for FOP 2.7, which is a print formatter driven by XSL formatting objects (XSL-FO). You can obtain fop.jar from the build folder of the fop-2.7-bin.zip file.

Below is the information about the fop.jar (2.2) file:

JAR File Size and Download Location:

JAR name: fop.jar, fop-2.7.jar
Target JDK version: 1.7
File name: fop.jar
File size: 4442817 bytes
Release date: 20-Jan-2022
Download: Apache FOP Website

Java source code files for fop.jar:

⏎ org/apache/fop/fo/properties/BorderWidthPropertyMaker.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/* $Id: BorderWidthPropertyMaker.java 1610839 2014-07-15 20:25:58Z vhennebert $ */

package org.apache.fop.fo.properties;

import org.apache.fop.fo.Constants;
import org.apache.fop.fo.PropertyList;
import org.apache.fop.fo.expr.PropertyException;

/**
 * This subclass of LengthProperty.Maker handles the special treatment of
 * border width described in 7.7.20.
 */
public class BorderWidthPropertyMaker extends LengthProperty.Maker {

    private int borderStyleId;

    /**
     * Create a length property which check the value of the border-*-style
     * property and return a length of 0 when the style is "none".
     * @param propId the border-*-width of the property.
     */
    public BorderWidthPropertyMaker(int propId) {
        super(propId);
    }

    /**
     * Set the propId of the style property for the same side.
     * @param borderStyleId the border style id
     */
    public void setBorderStyleId(int borderStyleId) {
        this.borderStyleId = borderStyleId;
    }

    /**
     * Check the value of the style property and return a length of 0 when
     * the style is NONE.
     * {@inheritDoc}
     */

    public Property get(int subpropId, PropertyList propertyList, boolean bTryInherit,
            boolean bTryDefault) throws PropertyException {
        Property p = super.get(subpropId, propertyList,
                               bTryInherit, bTryDefault);

        // Calculate the values as described in 7.7.20.
        Property style = propertyList.get(borderStyleId);
        if (style.getEnum() == Constants.EN_NONE) {
            return FixedLength.ZERO_FIXED_LENGTH;
        }
        return p;
    }
}

⏎ org/apache/fop/fo/properties/BorderWidthPropertyMaker.java

Or download all of them as a single archive file:

File name: fop-2.7-src.zip
File size: 3401312 bytes
Release date: 2022-01-20
Download 

⇒ "fop" Command in fop-2.7-bin.zip

⇐ What Is fop-2.7-bin.zip

⇑ Download and Installing of FOP 2.x

⇑⇑ FAQ for FOP (Formatting Object Processor)