Examples of org.apache.wicket.protocol.http.PageExpiredException

org.apache.wicket.protocol.http.PageExpiredException
Thrown when a {@link Page} instance cannot be found by its id in the page stores. The page may bemissing because of reasons like:
- the page have never been stored there, e.g. an error occurred during the storing process
- the http session has expired and thus all pages related to this session are erased too
- the page instance has been erased because the store size exceeded
This exception is used to tell Wicket to respond with the configured PageExpiredPage, so its stacktrace it is not really needed.
@see HttpSession#setMaxInactiveInterval(int) @see org.apache.wicket.settings.StoreSettings#setMaxSizePerSession(org.apache.wicket.util.lang.Bytes) @see NotSerializableException @see IPageProvider#getPageInstance()

   */
  protected IRequestTarget handleExpiredPage(final String pageMapName,
    final Class<? extends Page> pageClass, final int trailingSlashesCount,
    final boolean redirect)
  {
    throw new PageExpiredException(
      "Request cannot be processed. The target page does not exist anymore.");
  }

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   * @return request target used to handle this situation
   */
  protected IRequestTarget handleExpiredPage(String pageMapName, Class pageClass,
    int trailingSlashesCount, boolean redirect)
  {
    throw new PageExpiredException(
      "Request cannot be processed. The target page does not exist anymore.");
  }

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   * @return decoded URL
   * @deprecated Use {@link #onError(Exception, String)}
   */
  protected String onError(final Exception ex)
  {
    throw new PageExpiredException("Invalid URL");
  }

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      }
    }


    if (page == null)
    {
      throw new PageExpiredException(
        "Request cannot be processed. The target page does not exist anymore.");
    }
    
    final String pageRelativeComponentPath = Strings.afterFirstPathComponent(componentPath,
      Component.PATH_SEPARATOR);

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    {
      pageInstance = getPageInstance(pageId, pageClass, pageParameters, renderCount);


      if (pageInstance == null)
      {
        throw new PageExpiredException("Page expired.");
      }


      touchPageInstance(pageInstance);
    }
    return pageInstance;

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   * @return request target used to handle this situation
   */
  protected IRequestTarget handleExpiredPage(String pageMapName, Class pageClass,
    int trailingSlashesCount, boolean redirect)
  {
    throw new PageExpiredException(
      "Request cannot be processed. The target page does not exist anymore.");
  }

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      }
    }


    if (page == null)
    {
      throw new PageExpiredException(
        "Request cannot be processed. The target page does not exist anymore.");
    }


    final String pageRelativeComponentPath = Strings.afterFirstPathComponent(componentPath,
      Component.PATH_SEPARATOR);

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      }
    }
    else
    {
      // Page could not be located in the session
      throw new PageExpiredException("Cannot find the rendered page in session [pagemap="
          + requestParameters.getPageMapName() + ",componentPath=" + componentPath
          + ",versionNumber=" + requestParameters.getVersionNumber() + "]");
    }
  }

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   * @return request target used to handle this situation
   */
  protected IRequestTarget handleExpiredPage(String pageMapName, Class pageClass,
    int trailingSlashesCount, boolean redirect)
  {
    throw new PageExpiredException(
      "Request cannot be processed. The target page does not exist anymore.");
  }

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   * @return request target used to handle this situation
   */
  protected IRequestTarget handleExpiredPage(String pageMapName, Class pageClass,
    int trailingSlashesCount, boolean redirect)
  {
    throw new PageExpiredException(
      "Request cannot be processed. The target page does not exist anymore.");
  }

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