PMD xpath rule to warn about the use of equals() on BigDecimal

Question

Could someone suggest a PMD xpath rule to warn that calling the equals() method of java.math.BigDecimal will check for both value and scale which usually (unless for some engineering type apps) might be a mistake. Since 1.0 not equals 1.00, one should use compareTo.

Answer 1

It looks rather complicated with PMD but FindBugs already has a rule for this.