pmd/BUILDING.md

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# How to build PMD
PMD uses [Maven](https://maven.apache.org/) and requires at least Java 11 for building.
You can get Java 11 from [Oracle](http://www.oracle.com/technetwork/java/javase/downloads/index.html)
or from [AdoptOpenJdk](https://adoptopenjdk.net/).
2022-01-14 16:10:05 +01:00
PMD uses the [maven wrapper](https://maven.apache.org/wrapper/), so you can simply build PMD as following:
* `./mvnw clean verify` (on Unix-like platform such as Linux and Mac OS X)
* `mvnw.cmd clean verify` (on Windows)
This will create the zip files in the directory `pmd-dist/target`:
cd pmd-dist/target
ls *.zip
That's all !
**Note:** While Java 11 is required for building, running PMD only requires Java 7
(or Java 8 for Apex, JavaScript, Scala, Visualforce, and the Designer).
**Note:** With PMD 6.24.0, we are creating [Reproducible Builds](https://reproducible-builds.org/). Since we use
[Maven](https://maven.apache.org/guides/mini/guide-reproducible-builds.html) for building, the following
limitations apply:
* Generally give **different results on Windows and Unix** because of different newlines.
(carriage return linefeed on Windows, linefeed on Unixes).
We build our releases under **Linux** on [Github Actions](https://github.com/pmd/pmd/actions).
* Generally depend on the **major version of the JDK** used to compile. (Even with source/target defined,
each major JDK version changes the generated bytecode.).
We build our releases using OpenJDK 11.
## How to build the documentation?
cd docs
bundle install # once
bundle exec jekyll build
You'll find the built site in the directory `_site/`.
For more info, see [README in docs directory](docs/README.md).