build.gradle

def IDEA_MODULE_NAME = 'mymodule'
def IDEA_ARTIFACT_NAME = 'myproject'
  
def artifactManager = xmlFile.asNode().component.find { it.@name == 'ArtifactManager' } as Node
if (artifactManager) {
    Node artifact = artifactManager.artifact.find { it.@type == 'exploded-war' }
    if (artifact)
        artifactManager.remove(artifact)
} else {
    artifactManager = xmlFile.asNode().appendNode('component', [name: 'ArtifactManager']);
}
def artifact = new NodeBuilder().artifact(type: 'exploded-war', 'build-on-make': "true", name: "$IDEA_ARTIFACT_NAME") {
    'output-path'("\$PROJECT_DIR\$/$IDEA_BUILD_APP_DIR")
    root(id: 'root') {
        element(id: 'directory', name: 'WEB-INF') {
            element(id: 'directory', name: 'classes') {
                element(id: 'module-output', name: IDEA_MODULE_NAME)
            }
            element(id: 'directory', name: 'lib') {
                this.project.configurations.runtime.each {
                    element(id: 'file-copy', path: it)
                }
            }
        }
        element(id: 'javaee-facet-resources', facet: "$IDEA_MODULE_NAME/web/Web")
    }
}
artifactManager.append artifact