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| Chapter 25 The java.lang Package |

## 25.65 java.lang.UnknownError (JDK 1.0)

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Signals that an unknown error has occurred at the level of the Java Virtual Machine.

    public class UnknownError extends VirtualMachineError {
        // Public Constructors
                public UnknownError();
                public UnknownError(String s);
    }

### Hierarchy:

Object->Throwable(Serializable)->Error->VirtualMachineError->UnknownError

java.lang.Throwable (JDK 1.0) |  | java.lang.UnsatisfiedLinkError (JDK 1.0)