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Sergey Beryozkin commented on CXF-2986: --------------------------------------- Actually - my analysis is incomplete. if we have ?option then we should end up with a collection containing a single empty value which would be consistent with what I said above thus having an empty collection as requested by this JIRA is indeed correct , when no a given query key exists...will try to fix it this week... > sets null instead of empty List/Set/SortedSet when value isn't in query string > ------------------------------------------------------------------------------ > > Key: CXF-2986 > URL: https://issues.apache.org/jira/browse/CXF-2986 > Project: CXF > Issue Type: Bug > Components: JAX-RS > Affects Versions: 2.2.10 > Reporter: Brad Cupit > Priority: Minor > > CXF sets a null collection, rather than an empty one, when the query param > isn't in the request > Example: > @GET > @Path("/stuff") > public Response get(@QueryParam("option") Set<String> options) { ... } > and http://localhost:8080/stuff is called (but ?option=abc is not on the > query string), then options will be null, but it should be an empty Set > The javadocs in @DefaultValue says: > If this annotation is not used and the corresponding metadata is not present > in the request, the value will be an empty collection for List, Set or > SortedSet > this seems similar to CXF-1675 -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.