All Implemented Interfaces: `Serializable` public class UnknownServiceException extends IOException Thrown to indicate that an unknown service exception has occurred. Either the MIME type returned by a URL connection does not make sense, or the application is attempting to write to a read-only URL connection. Since: JDK11.0 See Also: Serialized Form
All Implemented Interfaces: Serializable public class UnknownServiceException extends IOException Thrown to indicate that an unknown service exception has occurred. Either the MIME type returned by a URL connection does not make sense, or the application is attempting to write to a read-only URL connection. Since: JDK1.0 See Also: Serialized Form	All Implemented Interfaces: `Serializable` public class UnknownServiceException extends IOException Thrown to indicate that an unknown service exception has occurred. Either the MIME type returned by a URL connection does not make sense, or the application is attempting to write to a read-only URL connection. Since: 1.0 See Also: Serialized Form

UnknownServiceException
```
public UnknownServiceException()
```
Constructs a new UnknownServiceException with no detail message.