-1, based on the output at https://repository.apache.org/content/repositories/snapshots/org/apache/hadoop/pig/0.8.0-SNAPSHOT/
Some problems here:
1. There are no -sources and -javadoc jars generated.
2. This jar is 11MB and includes a bunch of dependencies, many of which are optional:
com.jcraft stuff, com.google stuff, and some com.sun stuff.
It also includes, slf4j, modkito, junit, hamcrest, etc etc etc. Oh, and of course some javax.servlet that will break using it in a webapp container.
In short, this is an improperly packaged maven/ivy jar.
It should have only org.apache.pig, and specify other things as dependencies. Users can optionally package multiple things up into one jar. Pig can package a jar file that has all the required dependencies in it for the command line use (pig.jar). But the maven repo jars (pig-0.8.0.jar, pig-0.8.0-sources.jar, and pig-0.8.0-javadoc.jar) need to be pig and pig only.
3. Any artifacts that are not needed at runtime should not be ordinary dependencies. Junit must be specified as test scope, webapp stuff (javax.*) is typically 'included' scope (the container provides it).