[jira] Created: (WICKET-2659) Improve exception handling with dynamically instantiated ErrorExceptionPage

[Ilja Pavkovic (JIRA)]

Improve exception handling with dynamically instantiated ErrorExceptionPage
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                 Key: WICKET-2659
                 URL: https://issues.apache.org/jira/browse/WICKET-2659
             Project: Wicket
          Issue Type: Improvement
          Components: wicket
    Affects Versions: 1.4.4
            Reporter: Ilja Pavkovic
             Fix For: 1.4.5


based on the discussion at 

http://old.nabble.com/error-page-td26968559.html

I introduced the concept of a dynamically instantiated errorpage. If one uses a 
customized error page with

                
getApplicationSettings().setInternalErrorPage(MyErrorPage.class);
                
getExceptionSettings().setUnexpectedExceptionDisplay(IExceptionSettings.SHOW_INTERNAL_ERROR_PAGE);

neither the exception nor the responsePage can be accessed. Analogous the 
handling of Pages with PageParameters 
the request cycle tries to find and use a constructor like

public MyErrorPage(final Throwable throwable, final Page page) {
..
}

If this constructor is not found, wicket uses
public MyErrorPage() {
...} 
as fallback.

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