File libraryJar = findFile(ArtifactInfo.ScalaLibraryID, scalaClasspath);
        URL[] libraryUrls;
        boolean isScala3 = false;
        try {
            File library3Jar = findFile(SCALA_3_LIBRARY_ID, scalaClasspath);
            isScala3 = true;
            libraryUrls = new URL[]{library3Jar.toURI().toURL(), libraryJar.toURI().toURL()};
        } catch (IllegalStateException e) {

    }

    /**
     * Add all packages found in the jar file to the package <> jar(s) index.
     *
     * @param libraryJar Jar file to add to the index.
     */
    public void addLibraryJar(final File libraryJar) {
        new JarFilePackageLister().listJarPackages(libraryJar, new JarFilePackageListener() {
            @Override
            public void receivePackage(String packageName) {

            if (nestedJar.exists()) {
                nestedJar.delete()
            }
            nestedJarContents.zipTo(nestedJar)
            if (libraryJar.exists()) {
                libraryJar.delete()
            }
            libraryJarContents.zipTo(libraryJar)
        }

        void createNestedInDirJar() {
            if (nestedInDirJar.exists()) {
                nestedInDirJar.delete()
            }

> Task :app:processResources NO-SOURCE
> Task :anonymous-library:compileJava
> Task :anonymous-library:processResources NO-SOURCE
> Task :anonymous-library:classes
> Task :anonymous-library:jar
> Task :app:compileJava
> Task :app:classes

> Task :app:run
 The answer is 42

BUILD SUCCESSFUL in 0s

> Task :my-library:compileJava
> Task :my-library:processResources NO-SOURCE
> Task :my-library:classes
> Task :my-library:jar
> Task :my-library:generateMetadataFileForLibraryPublication
> Task :my-library:generatePomFileForLibraryPublication
> Task :my-library:publishLibraryPublicationToMavenRepository
> Task :my-library:publish

BUILD SUCCESSFUL in 0s

> Task :my-library:compileJava NO-SOURCE
> Task :my-library:compileGroovy
> Task :my-library:processResources NO-SOURCE
> Task :my-library:classes
> Task :my-library:jar
> Task :my-library:generateMetadataFileForLibraryPublication
> Task :my-library:generatePomFileForLibraryPublication
> Task :my-library:publishLibraryPublicationToMavenRepository
> Task :my-library:publish

BUILD SUCCESSFUL in 0s

private final java.io.File scalaLibDir$1; private volatile boolean bitmap$0; private ClassLoader loader$lzycompute(); public final String version(); public final ClassLoader loader(); public final java.io.File compilerJar(); public final java.io.File libraryJar(); public final java.io.File[] jars(); public final xsbti.AppProvider app(xsbti.ApplicationID); public void Launch$$anon$6(Launch, String, RetrievedModule, ClassLoader, java.io.File); } xsbt/boot/Classifiers.class package xsbt.boot; public final...