public static AstParserRuleReturnScope <CommonTree, IToken> JavaSource(this JavaParser parser)
{
var type = parser.GetType();
var methodInfos = type.GetMethod("javaSource", BindingFlags.NonPublic | BindingFlags.Instance);
var method = methodInfos;
return((AstParserRuleReturnScope <CommonTree, IToken>)method.Invoke(parser, new object[0]));
}