[HV000030: No validator could be found for constraint ‘javax.validation.constraints.NotEmpty’ validating type ‘java.lang.String’

I got a similiar error but ...Constraints.NotEmpty' validating type 'java.lang.Long'

It happened because I was using @NotEmpty in a non-String field.

I solved it replacing @NotEmpty with @Size(value=1, message= "whatever")