Java Utililty Methods Sleep

try {
    Thread.sleep(millis);
} catch (InterruptedException e) {
    Thread.currentThread().interrupt();

try {
    Thread.sleep(millis);
} catch (InterruptedException ex) {
    return;

if (millis < 0) {
    throw new IllegalArgumentException();
long start = System.currentTimeMillis();
long elapsed = 0;
do {
    try {
        Thread.sleep(millis - elapsed);
...

try {
    Thread.sleep(millis);
} catch (Exception e) {
    e.printStackTrace();

try {
    Thread.sleep(millis);
} catch (InterruptedException ex) {
    throw new RuntimeException(ex);

long started = System.currentTimeMillis();
long waited = 0;
while (waited < millis) {
    try {
        Thread.sleep(millis - waited);
    } catch (InterruptedException ie) {
        Thread.currentThread().interrupt();
    waited = System.currentTimeMillis() - started;

long now = System.currentTimeMillis();
long remaining = millis - (System.currentTimeMillis() - now);
while (remaining > 0) {
    try {
        Thread.sleep(remaining, 0);
    } catch (InterruptedException e) {
    remaining = millis - (System.currentTimeMillis() - now);
...

Puts the current thread to sleep for the specified number of milliseconds.

boolean interrupted = Thread.interrupted();
if (!interrupted) {
    try {
        Thread.sleep(milliseconds);
    } catch (InterruptedException ex) {
        interrupted = true;
        Thread.interrupted();
return !interrupted;

Thread.currentThread().sleep(milliseconds);

long wakeupTime = System.currentTimeMillis() + milliTime;
while (milliTime > 0) {
    try {
        Thread.sleep(milliTime);
        break;
    } catch (InterruptedException e) {
        milliTime = wakeupTime - System.currentTimeMillis();