A collection of ImageIO plugins, adding support for newer image formats. NightMonkeys uses the Foreign Linker API available since JDK 22 to access native libraries.
NightMonkeys plugins are released as multi-release JARs:
- with Java < 22, a no-op version of the plugin will unregister itself on load, basically doing nothing
- with Java 22+, the plugin will be available
This lets you add the dependencies in your project whatever the JDK used, and still enable the plugin at runtime if the necessary JDK is used.
| Plugin | Format | Read | Write | Metadata | TwelveMonkeys Tests | Notes |
|---|---|---|---|---|---|---|
| jxl | Jpeg XL | ✔ | - | - | ✔ | See limitations in the plugin page |
| webp | WebP | ✔ | - | - | ✔ | See limitations in the plugin page |
| heif | HEIF & AVIF | ✔ | - | - | ✔ | See limitations in the plugin page |
When possible, the plugins will use the extensive test suite from TwelveMonkeys, which covers much more test cases than simple decoding/encoding.
In order for the plugins to run properly, you will need to:
- Run Java 22 with the following options:
--enable-native-access=ALL-UNNAMED
- Make sure the path to the directory containing the native libraries is contained in the Java system
property
java.library.path(check also this).- For Linux, normally it works fine when installed from a package manager. You can add the libraries' path to
the
LD_LIBRARY_PATHenvironment variable. - For Mac, if using HomeBrew, you will need to set
JAVA_LIBRARY_PATHto/usr/local/lib/or/opt/homebrew/lib/.
- For Linux, normally it works fine when installed from a package manager. You can add the libraries' path to
the
runtimeOnly "com.github.gotson.nightmonkeys:imageio-{plugin}:{version}"runtimeOnly("com.github.gotson.nightmonkeys:imageio-{plugin}:{version}")<dependency>
<groupId>com.github.gotson.nightmonkeys</groupId>
<artifactId>imageio-{plugin}</artifactId>
<version>{version}</version>
<scope>runtime</scope>
</dependency>