Undefined (Groovy 3.0.0)

```
public final class Undefined
extends Object
```
Java doesn't allow you to have null as an attribute value. It wants you to indicate what you really mean by null, so that is what we do here - as ugly as it is.

Nested Classes
Modifier and Type	Class and Description
`static class`	`Undefined.CLASS`
`static class`	`Undefined.EXCEPTION`

Fields
Modifier and Type	Field and Description
`static String`	`STRING`

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static boolean`	`isUndefined(ClassNode other)`
`static boolean`	`isUndefined(String other)`
`static boolean`	`isUndefinedException(ClassNode other)`

public static boolean isUndefined(String other)

public static boolean isUndefined(ClassNode other)

public static boolean isUndefinedException(ClassNode other)

Class Undefined