Hit counts that are greater than the maximum value of an integer need to be accounted for

when statements in java code are executed
more than maximum value of integer number(2^31 - 1 = 2147483647). Under such
condition, coverage data overflows and represented as negative number. This
causes following behavior:

1) Statements and branches that have negative coverage data are not counted
as executed by clover 2.4.2. On the other hand, these are counted as executed
by clover 1.3.14. It makes a difference both of statement coverage and branch
coverage.

2) Branches that have negative coverage data, clover 2.4.2 indicates sum of
conditionals that evaluated to "true" and "false" on HTML report. On the
other hand, clover 1.3.14 indicates statement coverage on HTML data under
same condition. It makes a difference between them on HTML report.

That is why we need clover 1.x compatible option for clover 2.x HTML report
output.