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src | ||
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CONTRIBUTING.md | ||
DEVELOPERS-GUIDE.html | ||
LICENSE.txt | ||
NOTICE.txt | ||
PROPOSAL.html | ||
README.md | ||
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SECURITY.md | ||
pom.xml |
README.md
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. The Javadoc can be browsed. Questions related to the usage of Apache Commons Collections should be posted to the user mailing list.
Getting the latest release
You can download source and binaries from our download page.
Alternatively, you can pull it from the central Maven repositories:
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-collections4</artifactId>
<version>4.5.0-M2</version>
</dependency>
Building
Building requires a Java JDK and Apache Maven.
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 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. You can learn more about contributing via GitHub in our contribution guidelines.
License
This code is licensed under the Apache License v2.
See the NOTICE.txt
file for required notices and attributions.
Donating
You like Apache Commons Collections? Then donate back to the ASF to support development.
Additional Resources
- Apache Commons Homepage
- Apache Issue Tracker (JIRA)
- Apache Commons Slack Channel
- Apache Commons Twitter Account
Apache Commons Components
Please see the list of components