What Is poi-5.2.3.jar?

What Is poi-5.2.3.jar?

✍: FYIcenter.com

poi-5.2.3.jar is one of the JAR files for Apache POI 5.2.3, which provides an API for Microsoft document files of Word, Excel, PowerPoint, and Visio.

poi-5.2.3.jar supports Apache POI components that read and write Microsoft's OLE 2 Compound document format, which is used in early versions of Microsoft Office tools like Word 97, Excel 97, PowerPoint 97, etc.

poi-5.2.3.jar is distributed as part of the poi-bin-5.2.3-20220909.zip download file.

JAR File Size and Download Location:

JAR name: poi-5.2.3.jar
Target JDK version: 9

File name: poi.jar, poi-5.2.3.jar
File size: 2964641 bytes
Release date: 09-09-2022
Download: Apache POI Website

Here are Java Source Code files for poi-5.2.3.jar:


/* ====================================================================
   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


   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   See the License for the specific language governing permissions and
   limitations under the License.
==================================================================== */

package org.apache.poi.hssf.usermodel;

import java.awt.Font;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

 * Allows the user to lookup the font metrics for a particular font without
 * actually having the font on the system. The font details are loaded as a
 * resource from the POI jar file (or classpath) and should be contained in path
 * "/font_metrics.properties". The font widths are for a 10 point version of the
 * font. Use a multiplier for other sizes.
final class StaticFontMetrics {
    private static final Logger LOGGER = LogManager.getLogger(StaticFontMetrics.class);
    /** The font metrics property file we're using */
    private static Properties fontMetricsProps;
    /** Our cache of font details we've already looked up */
    private static final Map<String, FontDetails> fontDetailsMap = new HashMap<>();

    private StaticFontMetrics() {}

     * Retrieves the fake font details for a given font.
     * @param font
     *            the font to lookup.
     * @return the fake font.
    public static synchronized FontDetails getFontDetails(Font font) {
        // If we haven't already identified out font metrics file,
        // figure out which one to use and load it
        if (fontMetricsProps == null) {
            try {
                fontMetricsProps = loadMetrics();
            } catch (IOException e) {
                throw new RuntimeException("Could not load font metrics", e);

        // Grab the base name of the font they've asked about
        String fontName = font.getName();

        // Some fonts support plain/bold/italic/bolditalic variants
        // Others have different font instances for bold etc
        // (eg font.dialog.plain.* vs font.Californian FB Bold.*)
        String fontStyle = "";
        if (font.isPlain()) {
            fontStyle += "plain";
        if (font.isBold()) {
            fontStyle += "bold";
        if (font.isItalic()) {
            fontStyle += "italic";

        // Do we have a definition for this font with just the name?
        // If not, check with the font style added
        String fontHeight = FontDetails.buildFontHeightProperty(fontName);
        String styleHeight = FontDetails.buildFontHeightProperty(fontName + "." + fontStyle);

        if (fontMetricsProps.get(fontHeight) == null
            && fontMetricsProps.get(styleHeight) != null) {
            // Need to add on the style to the font name
            fontName += "." + fontStyle;

        // Get the details on this font
        FontDetails fontDetails = fontDetailsMap.get(fontName);
        if (fontDetails == null) {
            fontDetails = FontDetails.create(fontName, fontMetricsProps);
            fontDetailsMap.put(fontName, fontDetails);
        return fontDetails;

    private static Properties loadMetrics() throws IOException {
        // Check to see if the font metric file was specified
        // as a system property
        File propFile = null;
        try {
            String propFileName = System.getProperty("font.metrics.filename");
            if (propFileName != null) {
                propFile = new File(propFileName);
                if (!propFile.exists()) {
                    LOGGER.atWarn().log("font_metrics.properties not found at path {}", propFile.getAbsolutePath());
                    propFile = null;
        } catch (SecurityException e) {
            LOGGER.atWarn().withThrowable(e).log("Can't access font.metrics.filename system property");

        try (InputStream metricsIn = (propFile != null)
                ? new FileInputStream(propFile)
                : FontDetails.class.getResourceAsStream("/font_metrics.properties")
        )  {
            // Use the built-in font metrics file off the classpath
            if (metricsIn == null) {
                String err = "font_metrics.properties not found in classpath";
                throw new IOException(err);

            Properties props = new Properties();
            return props;


Or download all of them as a single archive file:

File name: poi-5.2.3-src.zip
File size: 2479830 bytes
Release date: 2022-09-09


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