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Sanity4J was created to simplify running multiple static code analysis tools on the Java projects. It provides a single entry point to run all the selected tools and produce a consolidated report, which presents all findings in an easily accessible manner.

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FE_FLOATING_POINT_EQUALITY

FE: Test for floating point equality (FE_FLOATING_POINT_EQUALITY)

This operation compares two floating point values for equality.
Because floating point calculations may involve rounding,
calculated float and double values may not be accurate.
For values that must be precise, such as monetary values,
consider using a fixed-precision type such as BigDecimal.
For values that need not be precise, consider comparing for equality
within some range, for example:
if ( Math.abs(x - y) < .0000001 ).
See the Java Language Specification, section 4.2.4.