Gradle build - add module path

Question

My question: How do I set a module path for gradle build?

I\'ve become comfortable working with Java modules from the command line. I do a frequent exe

Answer 1

First please note: I am on Gradle 6.6.1 with Java 15.

This is what I have observed:

1. in order to make the compile work, every project needs:

   java {
       modularity.inferModulePath = true
   }
   

2. this can be turned on at root build.gradle via

    subprojects {
        apply plugin: "java"
        java {
            modularity.inferModulePath = true
        }
    }
   

3. in order to use modulepath with gradle run (ServiceLoader working WITHOUT META-INF, reflection restrictions ...) you have to use following application section:

   application {
        mainModule = 'org.gradle.sample.app' // name defined in module-info.java
        mainClass = 'org.gradle.sample.Main'
        // DO NOT USE   mainClassName = 'org.gradle.sample.Main'
   }
   

Took me quite some time to put all together from several Gradle pages --- but it is all here.

Note:

This will not but non-modular jars to the module-path.