Hotfix for gson test.

Test had to be modified prior to internal use of hash sets. Test relied on retrieving first item from
parsedData values. That lead to test failure on various platforms. Now test should run without problems.

Change-Id: Icaa920645c0e12bc922eef131b89e27d7a6b213f
Signed-off-by: Lukas Sedlak <lsedlak@cisco.com>
Merge "Hotfix for gson test."