Groovy
Fetch an element of a list by index
http://langref.org/all-languages/lists/access/fetch-by-index
Three
com.xpn.xwiki.api.Object@2c1dcbe2
[com.xpn.xwiki.api.Object@5834790e, com.xpn.xwiki.api.Object@5cf7b35f, com.xpn.xwiki.api.Object@a2151a8, com.xpn.xwiki.api.Object@1177f1ca]