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.poifs.crypt;

import java.io.IOException;
import java.io.OutputStream;
import java.security.GeneralSecurityException;
import java.util.Map;
import java.util.function.Supplier;

import javax.crypto.SecretKey;

import org.apache.poi.EncryptedDocumentException;
import org.apache.poi.common.usermodel.GenericRecord;
import org.apache.poi.poifs.filesystem.DirectoryNode;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
import org.apache.poi.util.GenericRecordUtil;

public abstract class Encryptor implements GenericRecord {

    protected static final String DEFAULT_POIFS_ENTRY = Decryptor.DEFAULT_POIFS_ENTRY;
    private EncryptionInfo encryptionInfo;
    private SecretKey secretKey;

    protected Encryptor() {}

    protected Encryptor(Encryptor other) {
        encryptionInfo = other.encryptionInfo;
        // secretKey is immutable
        secretKey = other.secretKey;

     * Return a output stream for encrypted data.
     * @param dir the node to write to
     * @return encrypted stream
    public abstract OutputStream getDataStream(DirectoryNode dir)
        throws IOException, GeneralSecurityException;

    // for tests
    public abstract void confirmPassword(String password, byte[] keySpec, byte[] keySalt, byte[] verifier, byte[] verifierSalt, byte[] integritySalt);

    public abstract void confirmPassword(String password);

    public static Encryptor getInstance(EncryptionInfo info) {
        return info.getEncryptor();

    public OutputStream getDataStream(POIFSFileSystem fs) throws IOException, GeneralSecurityException {
        return getDataStream(fs.getRoot());

    public ChunkedCipherOutputStream getDataStream(OutputStream stream, int initialOffset)
    throws IOException, GeneralSecurityException {
        throw new EncryptedDocumentException("this decryptor doesn't support writing directly to a stream");

    public SecretKey getSecretKey() {
        return secretKey;

    public void setSecretKey(SecretKey secretKey) {
        this.secretKey = secretKey;

    public EncryptionInfo getEncryptionInfo() {
        return encryptionInfo;

    public void setEncryptionInfo(EncryptionInfo encryptionInfo) {
        this.encryptionInfo = encryptionInfo;

     * Sets the chunk size of the data stream.
     * Needs to be set before the data stream is requested.
     * When not set, the implementation uses method specific default values
     * @param chunkSize the chunk size, i.e. the block size with the same encryption key
    public void setChunkSize(int chunkSize) {
        throw new EncryptedDocumentException("this decryptor doesn't support changing the chunk size");

    public abstract Encryptor copy();

    public Map<String, Supplier<?>> getGenericProperties() {
        return GenericRecordUtil.getGenericProperties(
            "secretKey", secretKey == null ? () -> null : secretKey::getEncoded


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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