Group: Apache Commons

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Apache Commons Lang, a package of Java utility classes for the classes that are in java.lang's hierarchy, or are considered to be so standard as to justify existence in java.lang. The code is tested using the latest revision of the JDK for supported LTS releases: 8, 11, 17 and 21 currently. See https://github.com/apache/commons-lang/blob/master/.github/workflows/maven.yml Please ensure your build environment is up-to-date and kindly report any build issues.

The Apache Commons Collections package contains types that extend and augment the Java Collections Framework.

Apache Commons Compress defines an API for working with compression and archive formats. These include bzip2, gzip, pack200, LZMA, XZ, Snappy, traditional Unix Compress, DEFLATE, DEFLATE64, LZ4, Brotli, Zstandard and ar, cpio, jar, tar, zip, dump, 7z, arj.

The Commons Text library provides additions to the standard JDK text handling. It includes algorithms for string similarity and for calculating the distance between strings.

The Apache Commons Math project is a library of lightweight, self-contained mathematics and statistics components addressing the most common practical problems not immediately available in the Java programming language or commons-lang.

The Apache Commons Object Pooling Library.

Commons-IO contains utility classes, stream implementations, file filters, and endian classes.

The Apache Commons CSV library provides a simple interface for reading and writing CSV files of various types.

Apache Commons DBCP software implements Database Connection Pooling

Tools to assist in the reading of configuration/preferences files in various formats; requires Java 8.

Apache Commons Exec is a library to reliably execute external processes from within the JVM.

Apache Commons JEXL is a library facilitates the implementation of scripting features in applications and frameworks written in Java.

Apache Commons Email provides an API for sending email, simplifying the JavaMail API.

The Math project is a library of lightweight, self-contained mathematics and statistics components addressing the most common practical problems not immediately available in the Java programming language or commons-lang.

Apache Commons VFS is a Virtual File System library.

SpringSource Org Apache Commons Logging

The Commons Jexl library is an implementation of the JSTL Expression Language with extensions.

SpringSource Org Apache Commons Lang

SpringSource Org Apache Commons IO

The Apache Commons Digester package lets you configure an XML to Java object mapping module which triggers certain actions called rules whenever a particular pattern of nested XML elements is recognized.