Apache Commons Lang

Clone this repo:
  1. bfc88d2 [LANG-1516] Fix generics in API signatures of ExceptionUtils. by Gary Gregory · 21 hours ago master
  2. bb52448 Reduce magic number usage. by Gary Gregory · 22 hours ago
  3. a606a03 [LANG-1513] ObjectUtils: Get first non-null supplier value. by Gary Gregory · 2 weeks ago
  4. 259ac72 [LANG-1512] Add IS_JAVA_14 and IS_JAVA_15 to by Gary Gregory · 3 weeks ago
  5. 365f73c [LANG-1509] Add ObjectToStringComparator. #483. by Gary Gregory · 3 weeks ago

Apache Commons Lang

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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.


More information can be found on the Apache Commons Lang homepage. The Javadoc can be browsed. Questions related to the usage of Apache Commons Lang should be posted to the user mailing list.

Where can I get the latest release?

You can download source and binaries from our download page.

Alternatively you can pull it from the central Maven repositories:



We accept Pull Requests via GitHub. The developer mailing list is the main channel of communication for contributors. There are some guidelines which will make applying PRs easier for us:

  • No tabs! Please use spaces for indentation.
  • Respect the code style.
  • Create minimal diffs - disable on save actions like reformat source code or organize imports. If you feel the source code should be reformatted create a separate PR for this change.
  • Provide JUnit tests for your changes and make sure your changes don't break any existing tests by running mvn clean test.

If you plan to contribute on a regular basis, please consider filing a contributor license agreement. You can learn more about contributing via GitHub in our contribution guidelines.


This code is under the Apache Licence v2.

See the NOTICE.txt file for required notices and attributions.


You like Apache Commons Lang? Then donate back to the ASF to support the development.

Additional Resources