The Jackson extension uses javax.xml.stream which is not available on Android.

[x12a1f]

When running Android lint on my code it says:

..../org.restlet.ext.jackson-2.2.1.jar: Invalid package reference in library; not included in Android: javax.xml.stream. Referenced from org.restlet.ext.jackson.JacksonRepresentation.

It seems the Jackson extension is using parts of javax.xml.stream which is not on Android:

https://github.com/restlet/restlet-framework-java/blob/2.2/modules/org.restlet.ext.jackson/src/org/restlet/ext/jackson/JacksonRepresentation.java#L40

Since I am using json with Jackson on Android my app works.
Although I have not tested Jackson with XML on Android, I can imagine it will not work when using XML.

[x12a1f]

There also is a stackoverflow question about this: http://stackoverflow.com/q/26194178

[thboileau]

Hi @ralphvanetten, this dependency comes from the com.fasterxml.jackson.xml.jar archive used for XML serialisation. I can update the generation of the android edition, in order to remove the support of serialization by Jackson.

[thboileau]

Thanks for reporting this issue and for the pointer to the stackoverflow entry, the fix is available in both master and 2.2 branches.
closing.