Java Utililty Methods Object to String

return (in != null) ? in.toString() : null;

String strReturn = objectToString(in);
if (strReturn == null)
    return strReturn;
else if (ignoreNull) {
    if (in instanceof Double && ((Double) in).doubleValue() == 0.0)
        return null;
    else if (in instanceof Long && ((Long) in).longValue() == 0)
        return null;
...

if (o == null)
    return "null";
return o.getClass().getName() + "@" + Integer.toHexString(System.identityHashCode(o));

if (o == null) {
    return "";
try {
    return o.toString();
} catch (Exception e) {
    return "Exception converting object to string FormatUtils.objectToString(): " + e.getMessage();

return String.format("%s {instance of: %s}", o, o.getClass());

if (o == null) {
    return "null";
if (o instanceof Number) {
    return o.toString();
if (quoteStrings) {
    return "'" + o.toString().replaceAll(",", "%2C") + "'";
...

return objectToString(obj, null);

if (obj == null) {
    return "null";
if (obj instanceof CharSequence) {
    return "\"" + obj.toString() + "\"";
return obj.toString();

if (obj == null) {
    return "";
return String.valueOf(obj);

String result = "null";
if (obj != null) {
    String str = obj.toString();
    int len = str.length();
    if (len > MAX_CHARS) {
        len = MAX_CHARS;
    result = obj.toString().substring(0, len);
...