Sonar tip for code quality

Collection.isEmpty() should be used to test for emptiness

Using Collection.size() to test for emptiness works, but using Collection.isEmpty() makes the code more readable.

The following code:

if (myCollection.size() == 0) {  // Non-Compliant
  /* ... */
}

should be refactored into:

if (myCollection.isEmpty()) {    // Compliant
  /* ... */
}