[GROOVY-3451] Script returns "interface groovy.lang.Category" when evaluating "Category"

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 1.6
• Component/s: class generator
• Environment: XP or linux. Reproduces with a simple java program using embeddable groovy.
• Assignee: Jochen Theodorou
• Reporter: S Vinayaka
• Created: 03/Apr/09 10:37
• Updated: 18/Jan/13 16:06
• Resolved: 18/Jan/13 08:58

Description

If a script is simply "Category" where the binding has capability to resolve a variable of that name, Groovy returns "interface groovy.lang.Category" instead of the value of the variable "Category" from the given binding object. Here's a java code that reproduces this issue:

import groovy.lang.Binding;
import groovy.lang.GroovyShell;
import groovy.lang.Script;

public class testCategory {

    public static void main(String[] args) {
        Binding binding = new Binding() {
            public Object getVariable(String key) {
                if (key.equals("Category")) {
                    return new Long(210);
                }
                return super.getVariable(key);
            }
        };
        GroovyShell shell =
            new GroovyShell(Thread.currentThread().getContextClassLoader());
        String expr = "Category";
        Script scr = shell.parse(expr);
        System.out.println(expr);
        scr.setBinding(binding);
        Object value = scr.run();
        System.out.println(value);
    }
}

The output of the above code is expected to be:
Category
210

instead, what we get is:
Category
interface groovy.lang.Category