This inspection reports when a java expression has whitespaces before or after the java() block.

//wrong
@Mapper
public interface EmployeeMapper {
    @Mapping(source = "employeeName", expression = "  java(\"Name\")")
    Employee toEmployee(EmployeeDto employeeDto, @Context CycleAvoidingMappingContext context);
}

//correct
@Mapper
public interface EmployeeMapper {
    @Mapping(source = "employeeName", expression = "java(\"Name\")")
    Employee toEmployee(EmployeeDto employeeDto, @Context CycleAvoidingMappingContext context);
}