[antlr-interest] Where can I find package antlr ?

[Borneq]

I use sources from antlr-3.2.tar.gz and stringtemplate-3.2.tar.gz
In archive stringtemplate-3.2.tar.gz in file
stringtemplate-3.2\src\org\antlr\stringtemplate\language\ActionEvaluator.java
need to import:
import antlr.TreeParser;
import antlr.Token;
import antlr.collections.AST;
import antlr.RecognitionException;
import antlr.ANTLRException;
import antlr.NoViableAltException;
import antlr.MismatchedTokenException;
import antlr.SemanticException;
import antlr.collections.impl.BitSet;
import antlr.ASTPair;
import antlr.collections.impl.ASTArray;

Nowhere I can find this package