Fix spotbugs issues of the renderer module
Fix following categories:
- NP_LOAD_OF_KNOWN_NULL_VALUE
- PZLA_PREFER_ZERO_LENGTH_ARRAYS
- RCN_REDUNDANT_NULLCHECK_OF_NULL_VALUE
- SLF4J_ILLEGAL_PASSED_CLASS
- DM_CONVERT_CASE
- NM_CONFUSING
- SLF4J_FORMAT_SHOULD_BE_CONST
- UPM_UNCALLED_PRIVATE_METHOD
- EC_UNRELATED_TYPES
- NP_ALWAYS_NULL
- NP_LOAD_OF_KNOWN_NULL_VALUE
JIRA: TRNSPRTPCE-213
Signed-off-by: manuedelf <emmanuelle.delfour@gmail.com>
Change-Id: I19b1654ad5ac6f4ea3a8c1ef468a2e69016b69cc
15 files changed: