Fix SonarQube issues

[peterbae]

No description provided.

[codecov-io]

Codecov Report

Merging #930 into dev will increase coverage by 0.38%.
The diff coverage is 30.43%.

@@             Coverage Diff              @@
##                dev     #930      +/-   ##
============================================
+ Coverage     49.96%   50.34%   +0.38%     
- Complexity     2893     2927      +34     
============================================
  Files           119      120       +1     
  Lines         28096    28100       +4     
  Branches       4694     4693       -1     
============================================
+ Hits          14037    14147     +110     
+ Misses        11757    11655     -102     
+ Partials       2302     2298       -4

Flag	Coverage Δ	Complexity Δ
#JDBC42	49.88% <30.43%> (-0.08%)	2887 <0> (-6)
#JDBC43	50.3% <30.43%> (?)	2927 <0> (?)

Impacted Files	Coverage Δ	Complexity Δ
...m/microsoft/sqlserver/jdbc/KeyVaultCredential.java	0% <0%> (ø)	0 <0> (ø)	⬇️
...in/java/com/microsoft/sqlserver/jdbc/IOBuffer.java	55.58% <0%> (+0.19%)	0 <0> (ø)	⬇️
...m/microsoft/sqlserver/jdbc/KerbAuthentication.java	0% <0%> (ø)	0 <0> (ø)	⬇️
...m/microsoft/sqlserver/jdbc/SQLServerDataTable.java	65.87% <100%> (+0.79%)	29 <0> (ø)	⬇️
...a/com/microsoft/sqlserver/jdbc/ParameterUtils.java	64.44% <100%> (ø)	20 <0> (ø)	⬇️
...va/com/microsoft/sqlserver/jdbc/SQLServerClob.java	35.18% <25%> (-0.4%)	12 <0> (ø)
...om/microsoft/sqlserver/jdbc/SQLServerBulkCopy.java	51.47% <33.33%> (+0.12%)	254 <0> (ø)	⬇️
...om/microsoft/sqlserver/jdbc/SimpleInputStream.java	52.94% <0%> (-1.48%)	11% <0%> (-1%)
...ncurrentlinkedhashmap/ConcurrentLinkedHashMap.java	38.36% <0%> (-0.65%)	42% <0%> (-1%)
...rc/main/java/com/microsoft/sqlserver/jdbc/DDC.java	46.2% <0%> (-0.44%)	111% <0%> (ø)
... and 15 more

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