Java Utililty Methods String Split by Separator

if (str == null) {
    return null;
final int len = str.length();
if (len == 0) {
    return EMPTY_STRING_ARRAY;
final List<String> list = new ArrayList<>();
...

return split(str, separatorChar, 10);

int lastPos = 0;
List<String> arr = new ArrayList<String>();
for (int pos = 0; pos != str.length(); ++pos) {
    char ch = str.charAt(pos);
    for (char sep : separators) {
        if (ch == sep) {
            if (lastPos != pos) {
                arr.add(str.substring(lastPos, pos));
...

final List<String> strings = new ArrayList<>();
final int length = text.length();
final char[] characters = new char[length + 1];
characters[length] = separator;
text.getChars(0, length, characters, 0);
int start = 0, end = 0;
for (final char letter : characters) {
    if (letter == separator) {
...

return Arrays.asList(text.split(separator));

final ArrayList<T> split = new ArrayList<T>(8);
int last = 0;
for (int i = 0; i < string.length(); i++) {
    if (string.charAt(i) == separator) {
        split.add((T) string.subSequence(last, i));
        last = ++i;
if (last == 0)
    split.add(string); 
else
    split.add((T) string.subSequence(last, string.length()));
return split;

final List list = splitAsList(array, separators);
return (String[]) list.toArray(new String[list.size()]);

List<String> retval = new ArrayList<String>();
if (input == null)
    return retval;
int index = 0, end;
while (true) {
    index = input.indexOf(separator, index);
    if (index == -1)
        break;
...

List<String> results = new ArrayList<>();
if (left == null || left.isEmpty())
    return results;
for (String str : left.split(separator)) {
    if (str != null && !str.isEmpty())
        results.add(str);
return results;
...

java.util.List<String> list = storage.get();
list.clear();
StringBuilder sb = new StringBuilder();
boolean escaping = false;
char escape = '\\';
char prev;
char[] cs = s.toCharArray();
for (int i = 0; i < cs.length; i++) {
...