/*
* Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*
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*/
package java.io;
import java.util.
Objects;
/**
* Wraps an {@link IOException} with an unchecked exception.
*
* @since 1.8
*/
public class
UncheckedIOException extends
RuntimeException {
private static final long
serialVersionUID = -8134305061645241065L;
/**
* Constructs an instance of this class.
*
* @param message
* the detail message, can be null
* @param cause
* the {@code IOException}
*
* @throws NullPointerException
* if the cause is {@code null}
*/
public
UncheckedIOException(
String message,
IOException cause) {
super(
message,
Objects.
requireNonNull(
cause));
}
/**
* Constructs an instance of this class.
*
* @param cause
* the {@code IOException}
*
* @throws NullPointerException
* if the cause is {@code null}
*/
public
UncheckedIOException(
IOException cause) {
super(
Objects.
requireNonNull(
cause));
}
/**
* Returns the cause of this exception.
*
* @return the {@code IOException} which is the cause of this exception.
*/
@
Override
public
IOException getCause() {
return (
IOException) super.getCause();
}
/**
* Called to read the object from a stream.
*
* @throws InvalidObjectException
* if the object is invalid or has a cause that is not
* an {@code IOException}
*/
private void
readObject(
ObjectInputStream s)
throws
IOException,
ClassNotFoundException
{
s.
defaultReadObject();
Throwable cause = super.getCause();
if (!(
cause instanceof
IOException))
throw new
InvalidObjectException("Cause must be an IOException");
}
}