assert configurations._compileFree.collect { it.name } == ['b-transitive.jar', 'c-foo.jar']
                    }
                }
                task checkPaid(dependsOn: configurations._compilePaid) {
                    doLast {
                       assert configurations._compilePaid.collect { it.name } == ['b-transitive.jar', 'c-bar.jar']
                    }
                }
            }

        when: 'the generated task is executed'
        run 'clean', 'build', 'sourcesJar'

        then: 'the sources jar is generated'
        targetDir.file('build/libs/util-2.5.jar').exists()
        targetDir.file('build/libs/util-2.5-sources.jar').exists()
    }

    def 'testsJar'() {
        def rootBuildFile = dslFixtureFor(scriptDsl).getBuildFile()

        when: 'build is initialized'

                'org.gradle.libraryelements': of('jar', 'jar'),
                'org.gradle.usage': of('java-runtime', 'java-runtime'),
                'org.gradle.jvm.environment': of('', 'standard-jvm')
            ])}

---------------------
Unselected Variant(s)
---------------------

${variantOf('apiElements', [
                artifactType: of('jar', ''),

import java.util.Map;
import java.util.jar.Attributes;
import java.util.jar.JarFile;
import java.util.jar.Manifest;
import java.util.stream.Stream;
import java.util.zip.ZipEntry;

import org.apache.maven.api.JavaPathType;
import org.apache.maven.api.annotations.Nonnull;

/**
 * Information about the modules contained in a path element.

2 artifacts failed verification:
  - bar-1.0.jar (org:bar:1.0) from repository ivy
  - foo-1.0.jar (org:foo:1.0) from repository maven"""

            whenVerbose """Dependency verification failed for configuration ':compileClasspath':
  - On artifact bar-1.0.jar (org:bar:1.0) in repository 'ivy': expected a 'sha1' checksum of 'also invalid' but was '${getChecksum(bar, "sha1")}'

                apply plugin: 'base'
                task jar(type: Jar) {
                    destinationDirectory = buildDir
                    archiveFileName = 'lib.jar'
                    doLast {
                        ${server.callFromBuild('jar')}
                    }
                }
                artifacts {
                    compile jar
                }
            }

include::sample[dir="snippets/files/archivesWithJavaPlugin/groovy",files="build.gradle[tags=create-uber-jar-example]"]
====

See link:{groovyDslPath}/org.gradle.api.tasks.bundling.Jar.html[Jar] for more details on the configuration options available to you.
And note that you need to use `archiveClassifier` rather than `archiveAppendix` here for correct publication of the JAR.

        expect:
        withBuildCache().run "jar" assertTaskNotSkipped ":compileJava" assertTaskNotSkipped ":jar"

        when:
        file("src/main/java/Hello.java").text = CHANGED_HELLO_WORLD
        then:
        withBuildCache().run "jar" assertTaskNotSkipped ":compileJava" assertTaskNotSkipped ":jar"

        when:
        file("src/main/java/Hello.java").text = ORIGINAL_HELLO_WORLD

	queries     []query  // Queries to test the Jar.Cookies method
}

// query contains one test of the cookies returned from Jar.Cookies.
type query struct {
	toURL string // the URL in the Cookies call
	want  string // the expected list of cookies (order matters)
}

// run runs the jarTest.
func (test jarTest) run(t *testing.T, jar *Jar) {
	now := tNow

                    to.attribute(minified, true).attribute(artifactType, "jar")
                }
                registerTransform(SomeTransform) {
                    from.attribute(optimized, false).attribute(minified, true).attribute(artifactType, "jar")
                    to.attribute(optimized, true).attribute(minified, true).attribute(artifactType, "jar")
                }
            }