I tried to run PigServer in my Java code and get "NoClassDefFoundError: org/antlr/runtime/RecognitionException". Pig maven repo appears to lack a reference to ANTLR jars also it uses ANTLR in QueryParserDriver class.
http://mvnrepository.com/artifact/org.apache.pig/pig/0.10.1 Bests, -- Minh, Lê Ngọc Trento University, Master in Cognitive Science - Class of 2014 Skype: ngocminh_oss | Yahoo: ngocminh_oss | Tel: +39 389 603 7251