Gradle Multi project build prefixed jar and maven publication - gradle

Question

I have a gradle multi project build with the following layout:
Root
+---ProjectA
+---ProjectB
+---ProjectC
+ ...
The jars which will be produced by the subprojects need to be prefixed. e.g. PREFIX-ProjectA.jar. That's working.
How can I tell maven-publish task that it searches for "PREFIX-ProjectA.jar"? Currently it searches for "ProjectA.jar"
My publishing section looks like this:
task sourceJar(type: Jar) {
baseName 'PREFIX-' + project.name
from sourceSets.main.allJava
}
publishing {
publications {
mavenJava(MavenPublication) {
artifactId 'PREFIX-' + project.name
from components.java
artifact sourceJar {
classifier "sources"
}
}
}
}

Answer 1

In case somebody runs in the same issue here's my solution:
/**
* Creates a jar containing all sources
*/
task jarSources(type: Jar) {
baseName = 'PREFIX-' + project.name
from sourceSets.main.allJava
classifier = 'sources'
}
/**
* Creates the jar file
*/
task jarExecutable(type: Jar) {
baseName = 'PREFIX-' + project.name
from sourceSets.main.output
}
publishing {
publications {
mavenJava(MavenPublication) {
artifactId 'PREFIX-' + project.name
artifact jarExecutable
artifact jarSources
//....
}
}
}