expect:
        def reference = factory.fromJarURI(jarUrL(file))
        reference.file == file
        reference.path == relpath(file)
        reference.jarURL == jarUrL(file);
        !reference.relativeToPathVariable
    }

    def "creates null reference for a null jar url"() {
        expect:
        factory.fromJarURI(null) == null
    }

        library.accessRules += [new AccessRule('nonaccessible', 'secret**')]
        library.sourcePath = fileReferenceFactory.fromPath("/ant-src.jar")
        library.javadocPath = fileReferenceFactory.fromJarURI("jar:${new File("ant-javadoc.jar").toURI()}!/");
        return library
    }

        variable.accessRules += [new AccessRule('nonaccessible', 'secret**')]
        variable.sourcePath = fileReferenceFactory.fromVariablePath("/GRADLE_CACHE/ant-src.jar")
        variable.javadocPath = fileReferenceFactory.fromJarURI("jar:${new File("ant-javadoc.jar").toURI()}!/");
        return variable
    }

        super(node);
        String javadocLocation = (String) getEntryAttributes().get(ATTRIBUTE_JAVADOC_LOCATION);
        javadocPath = fileReferenceFactory.fromJarURI(javadocLocation);
    }

    public AbstractLibrary(FileReference library) {
        super(library.getPath());
        this.library = library;
    }

    public FileReference getSourcePath() {

        }
        return new FileReferenceImpl(new File(path), path, false);
    }

    /**
     * Creates a reference to the given path. Returns null for null path
     */
    public FileReference fromJarURI(String jarURI) {
        if (jarURI== null) {
            return null;
        }
        //cut the pre and postfix of this url
        URI fileURI = null;
        try {