public class UnhandledException
extends NestableRuntimeException

Thrown when it is impossible or undesirable to consume or throw a checked exception.

This exception supplements the standard exception classes by providing a more semantically rich description of the problem.

UnhandledException represents the case where a method has to deal with a checked exception but does not wish to. Instead, the checked exception is rethrown in this unchecked wrapper.

 public void foo() {
   try {
     // do something that throws IOException
   } catch (IOException ex) {
     // don't want to or can't throw IOException from foo()
     throw new UnhandledException(ex);
   }
 }