FileObject http = utils.resolve( "http", index );
assertNotNull( http );
assertEquals( actualHttp, http );
LibrariesChildFactory f = new LibrariesChildFactory( prj );
Set<String> libs = new HashSet<>();
for (ProjectNodeKey key : f.libraries()) {
libs.add( key.toString() );
if (!"boo".equals( key.toString() )) {
assertTrue( key.isBuiltIn() );
} else {
assertFalse( key.isBuiltIn() );