private final FileCollectionInternal collection;
    private final Spec<? super File> filterSpec;

    public FilteredFileCollection(AbstractFileCollection collection, Spec<? super File> filterSpec) {
        super(collection.taskDependencyFactory, collection.patternSetFactory);
        this.collection = collection;
        this.filterSpec = filterSpec;
    }

    @Override

        ClassLoader parent = getClass().getClassLoader();
        FilteringClassLoader.Spec filterSpec = new FilteringClassLoader.Spec();
        filterSpec.allowPackage("org.gradle.tooling.internal.protocol");
        filterSpec.allowClass(TaskExecutionRequest.class);
        rootClassLoader = new FilteringClassLoader(parent, filterSpec);
    }

    @Override

        FilteringClassLoader.Spec filterSpec = new FilteringClassLoader.Spec();
        filterSpec.allowPackage("com.sun.tools");
        filterSpec.allowPackage("com.sun.source");
        return classLoaderFactory.createFilteringClassLoader(
            this.getClass().getClassLoader(),
            filterSpec
        );
    }

    public ContextAwareJavaCompiler getSystemJavaCompiler() {

public interface FileCollectionInternal extends FileCollection, TaskDependencyContainer {
    String DEFAULT_COLLECTION_DISPLAY_NAME = "file collection";

    @Override
    FileCollectionInternal filter(Spec<? super File> filterSpec);

    @Override
    FileTreeInternal getAsFileTree();

    /**
     * Returns a copy of this collection, with the given collection replaced with the value returned by the given supplier.
     *