For inner enum classes, the generators jaxrs-cxf and jaxrs-cxf-client do not properly annotate the generated methods toString (missing @JsonValue) and fromValue (missing @JsonCreator), when the additional property jackson is set.

This bug is only present in enumClass.mustache responsible for inner enum classes. It is not present in enumOuterClass.mustache, which is responsible for regular enum classes.

This bug is resolved by this PR.

Hint for the reviewer: The first commit of this PR introduces a new petstore sample for jaxrs-cxf-client with additional property jackson set to true. The second commit provides the actual fix.

PR checklist

• Read the contribution guidelines.
• Pull Request title clearly describes the work in the pull request and Pull Request description provides details about how to validate the work. Missing information here may result in delayed response from the community.
• If contributing template-only or documentation-only changes which will change sample output, build the project beforehand.
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cc: @wing328 @bbdouglas @sreeshas @jfiala @lukoyanov @cbornet @jeff9finger @karismann @Zomzog @lwlee2608 @bkabrda