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/.
* set list to null in java if not required
* update petstore sample for java server stub
* update sample for msf4j
* add null assignment to new list/map in java
When a string enumeration has the empty string as one of its available
values, the generated code for many languages is invalid because the
empty string can not be used as an identifier. As with numbers and
symbols, provide a mapping to an English name which can be used as a
replacement. In this case, "empty" for the empty string/empty value.
Signed-off-by: Kevin Locke <kevin@kevinlocke.name>
