Java Utililty Methods Stacktrace to String

return stackTrace("Stack Dump");

return stacktrace(new Exception("Stacktrace"));

StringBuffer stackTraceStringBuffer = new StringBuffer();
for (StackTraceElement stackTraceElement : stackTraceElements) {
    stackTraceStringBuffer.append(stackTraceElement.toString()).append("\n");
return stackTraceStringBuffer.toString();

ByteArrayOutputStream bos = new ByteArrayOutputStream();
PrintStream ps = new PrintStream(bos);
ex.printStackTrace(ps);
ps.flush();
ps.close();
return bos.toString();

final StringWriter writer = new StringWriter();
final PrintWriter out = new PrintWriter(writer);
new Exception().printStackTrace(out);
out.close();
final String haystack = writer.toString();
for (final String needle : needles) {
    if (haystack.contains(needle))
        return true;
...

String ret = "";
String msg = e.getMessage();
if (msg != null) {
    ret += msg + newline;
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
e.printStackTrace(pw);
...

StringBuffer val = new StringBuffer();
boolean first = true;
while (t != null) {
    if (first) {
        val.append(t.toString() + "\n");
    } else {
        val.append("Cause: " + t + "\n");
    StackTraceElement[] stackTrace = t.getStackTrace();
    for (int j = 0; j < stackTrace.length; j++) {
        val.append("\tat " + stackTrace[j] + "\n");
    t = t.getCause();
return val.toString();

CharArrayWriter charArrayWriter = new CharArrayWriter();
PrintWriter printWriter = new PrintWriter(charArrayWriter);
e.printStackTrace(printWriter);
return new String(charArrayWriter.toCharArray());

return stackTraceToString(e.getStackTrace(), nBack);

StringBuilder errMessage = new StringBuilder();
errMessage.append(message).append(": ").append(ex.getMessage()).append(":\n");
for (StackTraceElement line : ex.getStackTrace()) {
    errMessage.append(line.toString()).append("\n");
return errMessage.toString();