how to specify maven compiler plugin order

Question

I\'m working on a mixed java and kotlin project by using maven.

The problem I\'m facing right now is, maven-compiler-plugin runs before compiling kotl

Answer 1

Although it's more verbose, you can compile both Java and Kotlin sources in the compile phase with the following configuration:

    kotlin-maven-plugin
    org.jetbrains.kotlin
    ${kotlin.version}
    
        
            kotlin-compile
            compile
            
                compile
            
        
        
            kotlin-test-compile
            test-compile
            
                test-compile
            
        
    


    org.apache.maven.plugins
    maven-compiler-plugin
    3.5
    
        
            default-compile
            none
        
        
            default-testCompile
            none
        
        
            java-compile
            compile
            
                compile
            
        
        
            java-test-compile
            test-compile
            
                testCompile
            
        
    

Normally, plugins are executed in the order they are declared in the POM, but the executions of default-compile and default-testCompile are special because they're built-in, so they always go first. The above configuration gets around that by disabling the default compile executions, and declaring maven-compiler-plugin with new compilation executions after the kotlin-maven-plugin. In this way, you can get all compilation to properly occur during the compile phase of the build lifecycle.