Java Utililty Methods EnumSet Usage

List of utility methods to do EnumSet Usage

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Description

The list of methods to do EnumSet Usage are organized into topic(s).

Method

voidawaitThreadState(Thread thread, long maxWaitMillis, Thread.State first, Thread.State... rest)
await Thread State 
EnumSet<Thread.State> set = EnumSet.of(first, rest);
long deadline = maxWaitMillis + System.currentTimeMillis();
Thread.State currentState;
do {
    currentState = thread.getState();
    if (System.currentTimeMillis() > deadline) {
        throw new AssertionError("Timed out waiting for thread state of <" + set + ">: " + thread
                + " (state = " + thread.getState() + ")");
...
EnumSetcopyOf(Collection src, Class type)
copy Of 
if (src.isEmpty()) {
    return EnumSet.noneOf(type);
} else {
    return EnumSet.copyOf(src);
SetdeepCloneEnumSet(final EnumSet set)
deepCloneEnumSet 
if (set == null) {
    return null;
return set.clone();
intencode(EnumSet set)
encode 
int ret = 0;
for (E val : set) {
    ret |= 1 << val.ordinal();
return ret;
List>extractTypes(final Class type)
A convenient method for extracting type information from all enum value for a specified enum type. 
final List<Class<?>> result = new ArrayList<>();
result.add(type);
final EnumSet<E> mnemonicEnumSet = EnumSet.allOf(type);
for (final E value : mnemonicEnumSet) {
    result.add(value.getClass());
return result;
TfindEnumIgnoreCase(Class enumClass, String string, T defValue)
find Enum Ignore Case 
for (T value : EnumSet.allOf(enumClass))
    if (value.toString().equalsIgnoreCase(string))
        return value;
return defValue;
HashMapgetDataFromEnum(Class enumClass)
This method return all enums in class. 
HashMap<String, String> enumValues = new HashMap<String, String>();
for (E enumField : EnumSet.allOf(enumClass)) {
    String key = enumField.name();
    String value = enumField.toString();
    enumValues.put(key, value);
return enumValues;
HashMapgetDataInEnumClass(String enumClassName)
get Data In Enum Class 
try {
    @SuppressWarnings("rawtypes")
    Class clazz = Class.forName(enumClassName);
    if (clazz.isEnum()) {
        return getDataFromEnum(clazz);
} catch (ClassNotFoundException e) {
return new HashMap<String, String>();
EnumgetEnumFromString(Class enumClass, String enumValue, boolean compareByValue)
This method return Enum which name values is equals to String, which is given as parameter. 
if (enumClass == null || enumValue == null || enumValue.isEmpty()) {
    throw new IllegalArgumentException(
            "Class shouldn't be null and value to compare shouldn't be null or empty.");
for (E enumField : EnumSet.allOf(enumClass)) {
    if (compareByValue) {
        if (enumField.toString().equalsIgnoreCase(enumValue)) {
            return enumField;
...
ListnativeLoadEnumDefaultValues(Class enumType)
native Load Enum Default Values 
List<?> result = null;
EnumSet values = (enumType != null ? EnumSet.allOf(enumType) : null);
if (values != null) {
    result = new ArrayList();
    result.addAll(values);
return result;