Handling null
This function helps you handle values which may be null.
Object nullable(Object input)
See Optional.ofNullable() for further details
Returns :
- The typed value or the String "null" in case the value was null.
Examples :
SpEL without : ${T(java.util.Optional).ofNullable(#mayBeNull).orElse("null")}
SpEL with : ${#nullable(#mayBeNull)}