Simplify boolean expressions

[simon04]

No description provided.

[codecov-io]

Codecov Report

Merging #857 into dev will decrease coverage by 0.02%.
The diff coverage is 23.52%.

@@             Coverage Diff              @@
##                dev     #857      +/-   ##
============================================
- Coverage     48.69%   48.67%   -0.03%     
  Complexity     2797     2797              
============================================
  Files           116      116              
  Lines         27875    27875              
  Branches       4650     4650              
============================================
- Hits          13575    13567       -8     
- Misses        12095    12098       +3     
- Partials       2205     2210       +5

Flag	Coverage Δ	Complexity Δ
#JDBC42	48.17% <23.52%> (-0.05%)	2753 <4> (-1)
#JDBC43	48.59% <23.52%> (+0.01%)	2792 <4> (+3)	⬆️

Impacted Files	Coverage Δ	Complexity Δ
...oft/sqlserver/jdbc/SQLServerPreparedStatement.java	51.96% <0%> (ø)	212 <0> (ø)	⬇️
...in/java/com/microsoft/sqlserver/jdbc/IOBuffer.java	56.16% <0%> (-0.14%)	0 <0> (ø)
...main/java/com/microsoft/sqlserver/jdbc/Column.java	34.73% <0%> (ø)	35 <0> (ø)	⬇️
.../microsoft/sqlserver/jdbc/SQLServerDataSource.java	45.56% <0%> (ø)	66 <0> (ø)	⬇️
...microsoft/sqlserver/jdbc/FailOverMapSingleton.java	13.79% <0%> (ø)	0 <0> (ø)	⬇️
...n/java/com/microsoft/sqlserver/jdbc/Parameter.java	64.12% <0%> (-0.21%)	64 <0> (ø)
...c/main/java/com/microsoft/sqlserver/jdbc/Util.java	61.42% <16.66%> (+0.43%)	90 <0> (+1)	⬆️
.../microsoft/sqlserver/jdbc/SQLServerConnection.java	48.09% <23.07%> (ø)	335 <4> (ø)	⬇️
...om/microsoft/sqlserver/jdbc/SQLServerBulkCopy.java	52.79% <66.66%> (+0.12%)	264 <0> (+1)	⬆️
...om/microsoft/sqlserver/jdbc/SimpleInputStream.java	52.94% <0%> (-1.48%)	11% <0%> (-1%)
... and 10 more

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[simon04]

@rene-ye, thanks a lot for your detailed and applicable review. I addressed your suggestions and amended+rebased my commit.