<@U3D2DCKQT> Sure thing: Java: ``` @Extension p...

# announcements

[Daniel]

@pniederw Sure thing:

Java:

@Extension
public class PluginDescriptor extends BuildStepDescriptor<Publisher> {
    public PluginDescriptor() {
        super(Plugin.class);
    }

    @Override
    public boolean isApplicable(Class type) {
        return true;
    }

    @Override
    public String getDisplayName() {
        return "My Plugin In Kotlin";
    }
}

Kotlin:

@Extension
class PluginDescriptor : BuildStepDescriptor<Publisher>(Plugin::class.java) {
    override fun isApplicable(type: Class<out AbstractProject<*, *>>) = true

    override fun getDisplayName() = "My Plugin In Kotlin"
}

I made sure to check if the class is instantiated in its kotlin form, which is not the case.
isApplicaple controls if the build step is available for a job type.

The annotation in question is: @Extension

Its used by the jenkins source code to mark that this class extends their functionality (for example with another build step). Sadly the source code is very convoluted and I am not 100% sure how they achiev that.