Unable to convert DSL argument: Cannot cast java.lang.String to java.util.Date

Hibernate Search
1

In Hibernate search 5 I was using this code for date filter and it was working fine

String from = "2022-01-31";
String to ="2022-03-16";
TermRangeQuery.newStringRange(filter.getKey(), from, to, true, true)

When migrating it to hibernate search 6 we have converted code like this but it is giving exception

String from = "2022-01-31";
String to ="2022-03-16";
pf.range().field(filter.getKey()).between(from, to)

Exception
Unable to convert DSL argument: Cannot cast java.lang.String to java.util.Date

Any reason why we are getting this exception??

2

When we convert string into java.util.Date then it works but we have runtime date format so,How to deal with it?? Also if date has null then??