What Is commons-io-2.11.jar

What Is commons-io-2.11.jar?

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commons-io-2.11.jar is the JAR file for Commons IO 2.5, which is a library of utilities to assist with developing IO functionality.

JAR File Size and Download Location:

JAR name: commons-io-2.11.0.jar
Target JDK version: 8
Dependency: None

File name: commons-io.jar, commons-io-2.11.0.jar
File size: 327135 bytes
Release date: 01-22-2020
Download: Apache Commons IO Website

Java source code files for commons-io-2.11.jar are:


 * 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,
 * See the License for the specific language governing permissions and
 * limitations under the License.
package org.apache.commons.io.output;

import java.io.IOException;
import java.io.Writer;

 * Throws an exception on all attempts to write with {@link #close()} implemented as a noop.
 * <p>
 * Typically uses of this class include testing for corner cases in methods that accept a writer and acting as a
 * sentinel value instead of a {@code null} writer.
 * </p>
 * @since 2.7
public class ClosedWriter extends Writer {

     * A singleton.
    public static final ClosedWriter CLOSED_WRITER = new ClosedWriter();

     * Throws an {@link IOException} to indicate that the writer is closed.
     * @param cbuf ignored
     * @param off ignored
     * @param len ignored
     * @throws IOException always thrown
    public void write(final char[] cbuf, final int off, final int len) throws IOException {
        throw new IOException("write(" + new String(cbuf) + ", " + off + ", " + len + ") failed: stream is closed");

     * Throws an {@link IOException} to indicate that the stream is closed.
     * @throws IOException always thrown
    public void flush() throws IOException {
        throw new IOException("flush() failed: stream is closed");

    public void close() throws IOException {
        // noop



Or download all of them as a single archive file:

File name: commons-io-2.11.0-sources.jar
File size: 398939 bytes
Release date: 2020-01-22


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