Java Utililty Methods String Split by Comma

ArrayList<String> result = new ArrayList<String>();
char character = '\0';
char previousCharacter;
StringBuilder value = new StringBuilder();
for (int i = 0; i < input.length(); i++) {
    previousCharacter = character;
    character = input.charAt(i);
    if (character == ',' || character == '|') {
...

List<String> result = new ArrayList<>();
StringBuilder token = new StringBuilder();
int closureDepth = 0;
boolean isStartMatch = false;
for (int i = 0; i < strWithComma.length(); i++) {
    char c = strWithComma.charAt(i);
    switch (c) {
    case '$':
...

if (configValue == null) {
    return null;
String[] splits = configValue.split(",");
List<String> list = new ArrayList<>(splits.length);
for (String split : splits) {
    list.add(split.trim());
return list;

char[] commandCharArr = command.toCharArray();
int idx = 0;
int beginPos = 0;
int endPos = 0;
char ch = ' ';
int state = 0;
String argument = "";
ArrayList<String> argList = new ArrayList<String>();
...

List<String> list = new ArrayList<String>();
StringBuilder word = new StringBuilder();
boolean quote = false;
int i = 0;
while (i < command.length()) {
    char c = command.charAt(i);
    if (Character.isWhitespace(c) && !quote) {
        i++;
...

List<String> elements = new ArrayList<String>();
String[] base = command.split(" ");
int realIndex = 0;
boolean inString = false;
for (int i = 0; i < base.length; i++) {
    for (int j = 0; j < base[i].length(); j++) {
        if (base[i].charAt(j) == '"') {
            if (j == 0)
...

command_string += " "; 
String[] substrings = command_string.split("\"");
if (substrings.length % 2 == 0) {
    throw new RuntimeException("Unmatched parantheses in: " + command_string);
ArrayList<String> output = new ArrayList<String>();
for (int i = 0; i < substrings.length; i++) {
    if ((i % 2) != 0) {
...

ArrayList<String> arguments = new ArrayList<String>();
int parCount = 0;
int lastBeginIndex = 0;
for (int i = 1; i < argumentString.length(); i++) {
    if (argumentString.charAt(i) == '(')
        parCount++;
    if (argumentString.charAt(i) == ')')
        parCount--;
...

List<String> results = new ArrayList<String>(Arrays.asList(commaStr.trim().split("\\s*,\\s*")));
for (Iterator<String> it = results.iterator(); it.hasNext();) {
    String next = it.next();
    next = next.trim();
    if (next.equals("")) {
        it.remove();
return results;

List<String> results = new ArrayList<String>();
if (input.charAt(0) != '(' || input.charAt(1) != '(' || input.charAt(input.length() - 2) != ')'
        || input.charAt(input.length() - 1) != ')') {
    throw new Exception("Invalid input");
String parts[] = input.substring(2, input.length() - 2).split("\\)\\)\\s*,\\s*\\(\\(");
for (int i = 0; i < parts.length; i++) {
    if (parts[i].trim().length() > 0) {
...