Gradle publish Invalid publication 'maven': artifact file does not exist

Question

I have a java with gradle (5.2) project and I'm trying to publish it to myMavenRepo

My build.gradle

plugins {   
    id 'maven-publish'
    id 'java'
    id 'org.springframework.boot' version '2.2.5.RELEASE'
    id 'io.spring.dependency-management' version '1.0.9.RELEASE'
}


group = 'com.doe'
version = '1.0.0'

sourceCompatibility = 10
targetCompatibility = 10


repositories {        
     mavenCentral()
     maven { url  MY_MAVEN_REPO_READ_URL }
}

dependencies { ... }


task sourceJar(type: Jar) {
    from sourceSets.main.allJava
}

publishing {
    repositories {
        maven {
            url MY_MAVEN_REPO_WRITE_URL
        }
    }

    publications {
        maven(MavenPublication) {
            from components.java

            artifact sourceJar {
                classifier "sources"
            }
        }
    }
}

but I always receive this error:

Invalid publication 'maven': artifact file does not exist: '/build/libs/project-1.0.0.jar'

And the .jar is always created with this name: project-1.0.0-sources.jar

So I tried to remove that 'sources' from the name changing classifier to empty:

 artifact sourceJar {
                classifier ""
 }

But I received this error:

Invalid publication 'maven': multiple artifacts with the identical extension and classifier ('jar', 'null').

Could someone help me?

Louis Jacomet Louis Jacomet · Accepted Answer · 2020-04-28T15:28:29

The Spring Boot plugin replaces the default jar of the project by an executable jar, which is not registered with components.java.

Have a look at the Spring Boot plugin documentation on how to publish the executable jar.

Gradle publish Invalid publication 'maven': artifact file does not exist

1 Answers