StateTool (Apache Arrow Java Root POM 16.1.0 API)

```
public class StateTool
extends Object
```
Utility methods for state machines based on enums.

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static <T extends Enum<?>> void`	`check(T currentState, T... expectedStates)` Verifies `currentState` is in one of `expectedStates`, throws an IllegalArgumentException if it isn't.

public static <T extends Enum<?>> void check(T currentState,
                                             T... expectedStates)

Verifies currentState is in one of expectedStates, throws an IllegalArgumentException if it isn't.

Class StateTool