commons-net.jar is the bytecode of Apache Commons Net library, which implements the client side of many basic Internet protocols.

Apache Commons Net Source Code files are provided in the binary packge (commons-net-3.8.0-bin.zip). You can download it at Apache Commons Net Website.

The source code of commons-net-3.8.0.jar is provided below:

⏎ org/apache/commons/net/ftp/FTPFileFilters.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.
 *
 */

package org.apache.commons.net.ftp;

/**
 * Implements some simple FTPFileFilter classes.
 * @since 2.2
 */
public class FTPFileFilters {

    /**
     * Accepts all FTPFile entries, including null.
     */
    public static final FTPFileFilter ALL = new FTPFileFilter() {
        @Override
        public boolean accept(final FTPFile file) {
            return true;
        }
    };

    /**
     * Accepts all non-null FTPFile entries.
     */
    public static final FTPFileFilter NON_NULL = new FTPFileFilter() {
        @Override
        public boolean accept(final FTPFile file) {
            return file != null;
        }
    };

    /**
     * Accepts all (non-null) FTPFile directory entries.
     */
    public static final FTPFileFilter DIRECTORIES = new FTPFileFilter() {
        @Override
        public boolean accept(final FTPFile file) {
            return file != null && file.isDirectory();
        }
    };

}

⏎ org/apache/commons/net/ftp/FTPFileFilters.java

Or download all of them as a single archive file:

File name: commons-net-3.8.0-sources.jar
File size: 437325 bytes
Release date: 2020-01-22
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