String[] () { return new String[] { "package java.util.concurrent;" + "public class ConcurrentHashMap {}", "package java.util;" + "public class WeakHashMap {" + " public WeakHashMap() {}" + " public WeakHashMap(int c) {}" + "}", "package java.util;" + "public class HashSet {" + " public HashSet() {}" + " public HashSet(int c) {}" + "}", "package java.util;" + "public class BitSet {" + " public BitSet() {}" + " public BitSet(int c) {}" + "}", "package java.util;" + "public class Vector {" + " public Vector() {}" + " public Vector(int c) {}" + "}" }; }