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src/java.base/share/classes/java/io/UncheckedIOException.java

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  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 package java.io;
  26 
  27 import java.util.Objects;
  28 
  29 /**
  30  * Wraps an {@link IOException} with an unchecked exception.
  31  *
  32  * @since   1.8
  33  */
  34 public class UncheckedIOException extends RuntimeException {

  35     private static final long serialVersionUID = -8134305061645241065L;
  36 
  37     /**
  38      * Constructs an instance of this class.
  39      *
  40      * @param   message
  41      *          the detail message, can be null
  42      * @param   cause
  43      *          the {@code IOException}
  44      *
  45      * @throws  NullPointerException
  46      *          if the cause is {@code null}
  47      */
  48     public UncheckedIOException(String message, IOException cause) {
  49         super(message, Objects.requireNonNull(cause));
  50     }
  51 
  52     /**
  53      * Constructs an instance of this class.
  54      *


  62         super(Objects.requireNonNull(cause));
  63     }
  64 
  65     /**
  66      * Returns the cause of this exception.
  67      *
  68      * @return  the {@code IOException} which is the cause of this exception.
  69      */
  70     @Override
  71     public IOException getCause() {
  72         return (IOException) super.getCause();
  73     }
  74 
  75     /**
  76      * Called to read the object from a stream.
  77      *
  78      * @throws  InvalidObjectException
  79      *          if the object is invalid or has a cause that is not
  80      *          an {@code IOException}
  81      */

  82     private void readObject(ObjectInputStream s)
  83         throws IOException, ClassNotFoundException
  84     {
  85         s.defaultReadObject();
  86         Throwable cause = super.getCause();
  87         if (!(cause instanceof IOException))
  88             throw new InvalidObjectException("Cause must be an IOException");
  89     }
  90 }


  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 package java.io;
  26 
  27 import java.util.Objects;
  28 
  29 /**
  30  * Wraps an {@link IOException} with an unchecked exception.
  31  *
  32  * @since   1.8
  33  */
  34 public class UncheckedIOException extends RuntimeException {
  35     @java.io.Serial
  36     private static final long serialVersionUID = -8134305061645241065L;
  37 
  38     /**
  39      * Constructs an instance of this class.
  40      *
  41      * @param   message
  42      *          the detail message, can be null
  43      * @param   cause
  44      *          the {@code IOException}
  45      *
  46      * @throws  NullPointerException
  47      *          if the cause is {@code null}
  48      */
  49     public UncheckedIOException(String message, IOException cause) {
  50         super(message, Objects.requireNonNull(cause));
  51     }
  52 
  53     /**
  54      * Constructs an instance of this class.
  55      *


  63         super(Objects.requireNonNull(cause));
  64     }
  65 
  66     /**
  67      * Returns the cause of this exception.
  68      *
  69      * @return  the {@code IOException} which is the cause of this exception.
  70      */
  71     @Override
  72     public IOException getCause() {
  73         return (IOException) super.getCause();
  74     }
  75 
  76     /**
  77      * Called to read the object from a stream.
  78      *
  79      * @throws  InvalidObjectException
  80      *          if the object is invalid or has a cause that is not
  81      *          an {@code IOException}
  82      */
  83     @java.io.Serial
  84     private void readObject(ObjectInputStream s)
  85         throws IOException, ClassNotFoundException
  86     {
  87         s.defaultReadObject();
  88         Throwable cause = super.getCause();
  89         if (!(cause instanceof IOException))
  90             throw new InvalidObjectException("Cause must be an IOException");
  91     }
  92 }
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