I have a query that goes like "SELECT e.id, ... FROM ... WHERE e.id IN :ids". Parameter ids is a list of ids. When it is empty and I execute the query, OpenJPA throws java.lang.IllegalArgumentException: Input parameter "ids" is empty.
Why not just return an empty list? I feel this is much like iterating over an empty Collection: by not throwing an exception you get less complex code than when you have to write an if statement to handle empty collections. Regards, Henno Vermeulen Huize Molenaar
