LOG.debugf( "parse() - HQL: %s", hql );
parser.statement();
final AST hqlAst = parser.getAST();
final NodeTraverser walker = new NodeTraverser( new JavaConstantConverter() );
walker.traverseDepthFirst( hqlAst );
showHqlAst( hqlAst );
parser.getParseErrorHandler().throwQueryException();
return parser;