setNumericObject for Types.BIT in PreparedStatement.java

Hi Mark,

I'm curious to your thoughts on adding logic to detirmine if the
parameterObj is a String, also test for "1" instead of only "true".

boolean parameterAsBoolean = "true".equalsIgnoreCase((String)
parameterObj) || "1".equalsIgnoreCase((String) parameterObj);

With thanks,
-Matt