[antlr-interest] gunit with custom AST nodes throws InvocationTargetException

[Felix Dorner]

Hey,

Until yesterday my gUnit tests ran fine in "Interpreter" mode. I now 
switched to a custom AST implementation (see below). Now, running the 
gUnit test simply exits without any output. Generating the JUnit test, 
and running that throws an InvocationTargetException when it tries to 
run a parser rule by reflection. The Exception is caused by a 
ClassCastException. Somewhere there's a cast from CommonTreeNode to my 
AST type is executed (which obviously fails..)

Has anyone had the same problem?
Felix


package allure.parser.ast;

import org.antlr.runtime.Token;
import org.antlr.runtime.tree.CommonTree;

import allure.parser.symbols.Scope;
import allure.parser.symbols.Symbol;

public class AST extends CommonTree {

    // The symbol that this node refers to
    public Symbol symbol;
   
    // The scope associated with this subtree
    public Scope scope;
   
    public AST(Token t){
        super(t);
    }
   
}

import org.antlr.runtime.Token;
import org.antlr.runtime.tree.CommonTreeAdaptor;

public class ASTAdaptor extends CommonTreeAdaptor {
   
    public Object create(Token payload) {
        return new AST(payload);
    }

}