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https://github.com/apache/commons-collections
Apache Commons Collections
https://github.com/apache/commons-collections
commons
Last synced: 15 days ago
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Apache Commons Collections
- Host: GitHub
- URL: https://github.com/apache/commons-collections
- Owner: apache
- License: apache-2.0
- Created: 2009-05-21T01:12:20.000Z (over 15 years ago)
- Default Branch: master
- Last Pushed: 2024-10-29T11:58:33.000Z (16 days ago)
- Last Synced: 2024-10-29T13:36:21.158Z (16 days ago)
- Topics: commons
- Language: Java
- Homepage: https://commons.apache.org/collections/
- Size: 21.1 MB
- Stars: 678
- Watchers: 72
- Forks: 473
- Open Issues: 29
-
Metadata Files:
- Readme: README.md
- Contributing: CONTRIBUTING.md
- License: LICENSE.txt
- Code of conduct: CODE_OF_CONDUCT.md
- Security: SECURITY.md
Awesome Lists containing this project
README
Apache Commons Collections
===================
[](https://github.com/apache/commons-collections/actions/workflows/maven.yml)
[](https://search.maven.org/artifact/org.apache.commons/commons-collections4)
[](https://javadoc.io/doc/org.apache.commons/commons-collections4/4.5.0-M2)
[](https://github.com/apache/commons-collections/actions/workflows/codeql-analysis.yml)
[](https://api.securityscorecards.dev/projects/github.com/apache/commons-collections)
The Apache Commons Collections package contains types that extend and augment the Java Collections Framework.
Documentation
-------------
More information can be found on the [Apache Commons Collections homepage](https://commons.apache.org/proper/commons-collections).
The [Javadoc](https://commons.apache.org/proper/commons-collections/apidocs) can be browsed.
Questions related to the usage of Apache Commons Collections should be posted to the [user mailing list](https://commons.apache.org/mail-lists.html).
Getting the latest release
--------------------------
You can download source and binaries from our [download page](https://commons.apache.org/proper/commons-collections/download_collections.cgi).
Alternatively, you can pull it from the central Maven repositories:
```xml
org.apache.commons
commons-collections4
4.5.0-M2
```
Building
--------
Building requires a Java JDK and [Apache Maven](https://maven.apache.org/).
The required Java version is found in the `pom.xml` as the `maven.compiler.source` property.
From a command shell, run `mvn` without arguments to invoke the default Maven goal to run all tests and checks.
Contributing
------------
We accept Pull Requests via GitHub. The [developer mailing list](https://commons.apache.org/mail-lists.html) 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 existing code style for each file.
+ 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`.
+ Before you pushing a PR, run `mvn` (by itself), this runs the default goal, which contains all build checks.
+ To see the code coverage report, regardless of coverage failures, run `mvn clean site -Dcommons.jacoco.haltOnFailure=false`
If you plan to contribute on a regular basis, please consider filing a [contributor license agreement](https://www.apache.org/licenses/#clas).
You can learn more about contributing via GitHub in our [contribution guidelines](CONTRIBUTING.md).
License
-------
This code is licensed under the [Apache License v2](https://www.apache.org/licenses/LICENSE-2.0).
See the `NOTICE.txt` file for required notices and attributions.
Donating
--------
You like Apache Commons Collections? Then [donate back to the ASF](https://www.apache.org/foundation/contributing.html) to support development.
Additional Resources
--------------------
+ [Apache Commons Homepage](https://commons.apache.org/)
+ [Apache Issue Tracker (JIRA)](https://issues.apache.org/jira/browse/COLLECTIONS)
+ [Apache Commons Slack Channel](https://the-asf.slack.com/archives/C60NVB8AD)
+ [Apache Commons Twitter Account](https://twitter.com/ApacheCommons)
Apache Commons Components
-------------------------
Please see the [list of components](https://commons.apache.org/components.html)