val scriptFileName: String
        get() = scriptFile.name

    /**
     * Gradle plugin id inferred from the script file name and package declaration (if any).
     */
    val id by lazy {
        packagePrefixed(fileNameWithoutScriptExtension)
    }

    /**
     * Fully qualified name for the [Plugin] implementation class.
     *
     * The [Plugin] implementation class adapts the precompiled script class

        }
    }

    public FilteringClassLoader(ClassLoader parent, Spec spec) {
        super(parent);
        packageNames = new HashSet<String>(spec.packageNames);
        packagePrefixes = new TrieSet(spec.packagePrefixes);
        resourceNames = new HashSet<String>(spec.resourceNames);
        resourcePrefixes = new TrieSet(spec.resourcePrefixes);
        classNames = new HashSet<String>(spec.classNames);

    }

    def filteringClassloaderSpec() {
        def classNames = [ 'allowed.Class1', 'allowed.Class2' ]
        def disallowedClassNames = [ 'disallowed.Class1', 'disallowed.Class2' ]
        def packagePrefixes = [ 'allowed.pkgprefix1.', 'allowed.pkgprefix2' ]
        def disallowedPackagePrefixes = [ 'disallowed.pkgprefix1.', 'disallowed.pkgprefix2.' ]
        def packageNames = [ 'allowed.pkg1', 'allowed.pkg2' ]

    }

    def filteringClassloaderSpec() {
        def classNames = [ 'allowed.Class1', 'allowed.Class2' ]
        def disallowedClassNames = [ 'disallowed.Class1', 'disallowed.Class2' ]
        def packagePrefixes = [ 'allowed.pkgprefix1.', 'allowed.pkgprefix2' ]
        def disallowedPackagePrefixes = [ 'disallowed.pkgprefix1.', 'disallowed.pkgprefix2.' ]
        def packageNames = [ 'allowed.pkg1', 'allowed.pkg2' ]

    def "can serialize and deserialize a spec"() {
        def classNames = [ 'allowed.Class1', 'allowed.Class2' ]
        def disallowedClassNames = [ 'disallowed.Class1', 'disallowed.Class2' ]
        def packagePrefixes = [ 'allowed.pkgprefix1.', 'allowed.pkgprefix2' ]
        def disallowedPackagePrefixes = [ 'disallowed.pkgprefix1.', 'disallowed.pkgprefix2.' ]
        def packageNames = [ 'allowed.pkg1', 'allowed.pkg2' ]

    public FilteringClassLoader.Spec read(Decoder decoder) throws Exception {
        List<String> classNames = decodeStrings(decoder);
        List<String> disallowedClassNames = decodeStrings(decoder);
        List<String> packagePrefixes = decodeStrings(decoder);
        List<String> disallowedPackagePrefixes = decodeStrings(decoder);
        List<String> packageNames = decodeStrings(decoder);
        List<String> resourceNames = decodeStrings(decoder);

            spec.classNames == [Test.name]
            spec.disallowedClassNames == [Before.name]
            spec.packageNames == ["org.junit"]
            spec.packagePrefixes == ["org.junit."]
            spec.resourceNames == ["a/b/c"]
            spec.resourcePrefixes == ["org/junit/"]
        }
        1 * visitor.visitParent(classLoader.parent)
        0 * visitor._
    }