[DMN XML] Signavio Profile - DayDiffFunction: Should work with Date and DateTime values --------------------------------------------------------------------------------------- Key: DROOLS-5710 URL: https://issues.redhat.com/browse/DROOLS-5710 Project: Drools Issue Type: Bug Components: dmn engine Reporter: Jonas Beyer Assignee: Matteo Mortari Priority: Minor If the DayDiff() function is called with a parameter of data type Date, an error is thrown during runtime. Example: {quote}dayDiff(myDate, today()) {quote} h3. Acceptance Criteria: * DayDiff function can be called with datatypes Date and Datetime in any combination ** Date, Date ** Date, Datetime ** Datetime, Date ** Datetime, Datetime h3.  Details: The {{DayDiffFunction}} is implemented using {{Duration#between}} . This implementation will try to calculate the duration between the given {{Temporal}} s based on their nanoseconds or seconds, which can't be extracted from values of type Date that don't have a time component. Suggestion: Manually convert the parameters to {{Instant}} s, using the start of the day as time component for Date values.