Gradle exclude plugin in main project for specific subproject(s)

Question

I am working on a larger project that contains many subprojects which are all build with gradle. Generally all projects are java projects, therefore in the main build.gradle script

allprojects {
    apply plugin: 'java'
}

is specified for all projects.

However I need to either remove the plugin for a certain subtree of projects or explicitly exclude the the projects from the plugin.

Heres a rough overview of the project layout

+ Main
+-- javaApplications
+-- javaLibs
+-- Android
+-----AndroidApps
+-----AndroidLibs

Android/* does not need the java plugin. What is the best solution to achieve this? Note: I cannot change the project structure.

Answer 1

This should do the trick (when placed in root build.gradle script)

configure(allprojects - project(':Android')) { //or ':Android:AndroidApps' not sure
    println "applying java plugin to $project"
    apply plugin: 'java'  
}

Answer 2

You can also do this way:

allprojects {
    if (!it.name.startsWith('Android')) {
        apply plugin: 'java'
    }
}