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()

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

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   */
  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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    {
      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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   */
  protected IRequestHandler 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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      }
    }


    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();
    return pageInstance;
  }

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    final Component component = getTarget();
    final String id = getRequestParameters().getBehaviorId();
    if (id == null)
    {
      // wicket-2107
      throw new PageExpiredException(
        "Parameter behaviorId was not provided: unable to locate listener. Component: " +
          component.toString());
    }


    final int idAsInt = Integer.parseInt(id);
    final List<IBehavior> behaviors = component.getBehaviorsRawList();
    if (behaviors == null)
    {
      throw new PageExpiredException("No behaviors attached to component " +
        component.toString());
    }


    IBehaviorListener behaviorListener = null;


    if (behaviors.size() > idAsInt)
    {
      IBehavior behavior = behaviors.get(idAsInt);
      if (behavior instanceof IBehaviorListener)
      {
        behaviorListener = (IBehaviorListener)behavior;
      }
    }


    if (behaviorListener == null)
    {
      // wicket-2107
      throw new PageExpiredException("No behavior listener found with behaviorId " + id +
        "; Component: " + component.toString());
    }


    // Invoke the interface method
    behaviorListener.onRequest();

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    {
      pageInstance = getPageInstance(pageId, pageClass, pageParameters, renderCount);
    }
    if (pageInstance == null)
    {
      throw new PageExpiredException("Page expired.");
    }
    touchPageInstance();
    return pageInstance;
  }

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    {
      resolvePageInstance(pageId, pageClass, pageParameters, renderCount);


      if (pageInstance == null)
      {
        throw new PageExpiredException("Page with id '" + pageId + "' has expired.");
      }
    }
    return pageInstance;
  }

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