rtRemote - Code cleanup

[jmgasper]

Items from the recent review:

Issue 1

Why is your server file called sample_server.cpp.cpp -> It should be sample_server.cpp

Issue 2

public static long FIND_OBBJECT_TIME = 1000;Typo - OBJECT

Issue 3

String temp;
          RTMessageLocate locate = serializer.fromBytes(recvBuff, 0, recvBuff.length);
          temp = locate.getEndpoint().toString();
          temp += "/";
          temp += locate.getObjectId();

Should use StringBuilder here instead of String

Issue 4

 } catch (Exception e) {
          e.printStackTrace();
          break;
        }

Should log the exception as well

Issue 5

while (true) {
      try {
        Long now = System.currentTimeMillis();
        Long diff = now - preCheckTime;
        URI uri = objectMap.get(name);
        if (uri != null) {
          objectMap.remove(name);
          return uri;
        }

Should more unneeded var declarations outside the while loop

Issue 6

A number of items in the Javadocs are missing @NonNull. Please ensure those items are updated appropriately.