Take the 2-minute tour ×  I've never worked with Concurrency
library before.  public class QueueExecutor  {  static final int
defaultCorePoolSize = 5;  static final int
defaultMaximumPoolSize = 10;  static final long
defaultKeepAliveTime = 10;  static final TimeUnit
defaultTimeUnit = TimeUnit.MINUTES;  static final
BlockingQueue<Runnable> workQueue = new
LinkedBlockingQueue<Runnable>();  private static
ThreadPoolExecutor instance;   private QueueExecutor() {
instance = new ThreadPoolExecutor(defaultCorePoolSize,
defaultMaximumPoolSize, defaultKeepAliveTime, defaultTimeUnit,
workQueue);  public static ThreadPoolExecutor getInstance() {
if (instance == null) {      return instance;  public static
add(Runnable runnable){  } instance.execute(runnable);   My
question is the following, If this object is running inside
JBoss application container, should I synchronize add and
getInstance functions and why? I think that these
ThreadPoolExecutor is already syncronized.  share|improve this
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