Commit e3d04ee01 (issue #5240) introduced unsafe add/put methods for optional
list/map parameters. This change maintains the spirit of issue #5240 (optional
containers are null by default) while still making add/put calls safe. It does
this by checking for null first and, if so, initializing it with an empty
container.
Also updated the affected samples using the various scripts in bin/.
* Updating samples after #5232.
* Fix tests after #5232.
* Fix Javascript client tests.
* JaxRS server: set serverPort only when not given from outside.
* Update JaxRS sample creator scripts to fix serverPort.
* Preliminary test fix for JaxRS server generators.
* Updating samples for JaxRS with Jersey1/2.
* Updating JaxRS samples again.
