When I edit PL/SQL packages or sql queries in SQL Developer 4.0 Early Adopter 2,
when i copy/paste SQL code, sometimes "Please amend your code to something like this: "select * from when", or "begin when; end;" appears.
Sometimes SQL Developer freezes.
Can I avoid that message (turn off some kind of checks in SQL Developer properties)?
This has been raised/documented fixed in future releases here:
EA42 - Ambiguous Context Pop-up