javac/code/Types.java

206         private final UnaryVisitor<Boolean> isUnbounded = new UnaryVisitor<Boolean>() {
1745         private UnaryVisitor<Boolean> isReifiable = new UnaryVisitor<Boolean>() {
2228         private UnaryVisitor<Type> supertype = new UnaryVisitor<Type>() {
2298         private UnaryVisitor<List<Type>> interfaces = new UnaryVisitor<List<Type>>() {
2356         private final UnaryVisitor<List<Type>> directSupertypes = new UnaryVisitor<List<Type>>() {
2466         private UnaryVisitor<Type> classBound = new UnaryVisitor<Type>() {
3909         private static class HashCodeVisitor extends UnaryVisitor<Integer> {
4450     class Rewriter extends UnaryVisitor<Type> {
4705     public static abstract class UnaryVisitor<R> extends SimpleVisitor<R,Void> {