Y20200812-1200
The time complexity of any isEmpty() method implementation should be O(1) whereas some implementations of size() can be O(n). Thus, using this rule provides performance benefits. jSparrow Cleanup Change-Id: Ia1062de139e85168a68314a3d2b37f9fd49c7a89 Signed-off-by: Ardit Ymeri <ardit.ymeri@splendit.at>