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Posted to issues@cxf.apache.org by "Karl Goldstein (JIRA)" <ji...@apache.org> on 2007/08/11 20:47:43 UTC

[jira] Created: (CXF-906) ClassCastException in CXFServlet.loadSpringBus when context initialization fails

ClassCastException in CXFServlet.loadSpringBus when context initialization fails
--------------------------------------------------------------------------------

                 Key: CXF-906
                 URL: https://issues.apache.org/jira/browse/CXF-906
             Project: CXF
          Issue Type: Bug
          Components: Core
    Affects Versions: 2.0
         Environment: using Spring Framework 2.1 m2
            Reporter: Karl Goldstein
            Priority: Minor


CXFServlet.java line 136 obtains the Spring application context from the servlet context:

        if (ctx == null) {
            ctx = (ApplicationContext)svCtx
                .getAttribute("org.springframework.web.context.WebApplicationContext.ROOT");
        }

If the Spring application context failed to load however, Spring (somewhat inexplicably) sets this attribute to be the exception rather than the context.  See org/springframework/web/context/ContextLoader.java line 202:

		catch (RuntimeException ex) {
			logger.error("Context initialization failed", ex);
			servletContext.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, ex);
			throw ex;
                                           }

To avoid repeated ClassCastExceptions that obscure the underlying problem with the Spring application context, CXFServlet should check the type of the attribute before attempting to cast to ApplicationContext:

        if (ctx == null) {
            Object ctxObject = svCtx
                .getAttribute("org.springframework.web.context.WebApplicationContext.ROOT");
            if (ctxObject instanceof ApplicationContext) {
	      ctx = (ApplicationContext) ctxObject;
	    }
        }


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[jira] Commented: (CXF-906) ClassCastException in CXFServlet.loadSpringBus when context initialization fails

Posted by "Karl Goldstein (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/CXF-906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12519263 ] 

Karl Goldstein commented on CXF-906:
------------------------------------

On second thought, I suppose it would be even better to check this attribute in CXFServlet.init() and stop initialization if the ApplicationContext is invalid (an exception).

> ClassCastException in CXFServlet.loadSpringBus when context initialization fails
> --------------------------------------------------------------------------------
>
>                 Key: CXF-906
>                 URL: https://issues.apache.org/jira/browse/CXF-906
>             Project: CXF
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 2.0
>         Environment: using Spring Framework 2.1 m2
>            Reporter: Karl Goldstein
>            Priority: Minor
>
> CXFServlet.java line 136 obtains the Spring application context from the servlet context:
>         if (ctx == null) {
>             ctx = (ApplicationContext)svCtx
>                 .getAttribute("org.springframework.web.context.WebApplicationContext.ROOT");
>         }
> If the Spring application context failed to load however, Spring (somewhat inexplicably) sets this attribute to be the exception rather than the context.  See org/springframework/web/context/ContextLoader.java line 202:
> 		catch (RuntimeException ex) {
> 			logger.error("Context initialization failed", ex);
> 			servletContext.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, ex);
> 			throw ex;
>                                            }
> To avoid repeated ClassCastExceptions that obscure the underlying problem with the Spring application context, CXFServlet should check the type of the attribute before attempting to cast to ApplicationContext:
>         if (ctx == null) {
>             Object ctxObject = svCtx
>                 .getAttribute("org.springframework.web.context.WebApplicationContext.ROOT");
>             if (ctxObject instanceof ApplicationContext) {
> 	      ctx = (ApplicationContext) ctxObject;
> 	    }
>         }

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[jira] Assigned: (CXF-906) ClassCastException in CXFServlet.loadSpringBus when context initialization fails

Posted by "willem Jiang (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/CXF-906?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

willem Jiang reassigned CXF-906:
--------------------------------

    Assignee: willem Jiang

> ClassCastException in CXFServlet.loadSpringBus when context initialization fails
> --------------------------------------------------------------------------------
>
>                 Key: CXF-906
>                 URL: https://issues.apache.org/jira/browse/CXF-906
>             Project: CXF
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 2.0
>         Environment: using Spring Framework 2.1 m2
>            Reporter: Karl Goldstein
>            Assignee: willem Jiang
>            Priority: Minor
>
> CXFServlet.java line 136 obtains the Spring application context from the servlet context:
>         if (ctx == null) {
>             ctx = (ApplicationContext)svCtx
>                 .getAttribute("org.springframework.web.context.WebApplicationContext.ROOT");
>         }
> If the Spring application context failed to load however, Spring (somewhat inexplicably) sets this attribute to be the exception rather than the context.  See org/springframework/web/context/ContextLoader.java line 202:
> 		catch (RuntimeException ex) {
> 			logger.error("Context initialization failed", ex);
> 			servletContext.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, ex);
> 			throw ex;
>                                            }
> To avoid repeated ClassCastExceptions that obscure the underlying problem with the Spring application context, CXFServlet should check the type of the attribute before attempting to cast to ApplicationContext:
>         if (ctx == null) {
>             Object ctxObject = svCtx
>                 .getAttribute("org.springframework.web.context.WebApplicationContext.ROOT");
>             if (ctxObject instanceof ApplicationContext) {
> 	      ctx = (ApplicationContext) ctxObject;
> 	    }
>         }

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[jira] Resolved: (CXF-906) ClassCastException in CXFServlet.loadSpringBus when context initialization fails

Posted by "willem Jiang (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/CXF-906?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

willem Jiang resolved CXF-906.
------------------------------

       Resolution: Fixed
    Fix Version/s: 2.1

The patch code has been applied into the SVN 

> ClassCastException in CXFServlet.loadSpringBus when context initialization fails
> --------------------------------------------------------------------------------
>
>                 Key: CXF-906
>                 URL: https://issues.apache.org/jira/browse/CXF-906
>             Project: CXF
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 2.0
>         Environment: using Spring Framework 2.1 m2
>            Reporter: Karl Goldstein
>            Assignee: willem Jiang
>            Priority: Minor
>             Fix For: 2.1
>
>
> CXFServlet.java line 136 obtains the Spring application context from the servlet context:
>         if (ctx == null) {
>             ctx = (ApplicationContext)svCtx
>                 .getAttribute("org.springframework.web.context.WebApplicationContext.ROOT");
>         }
> If the Spring application context failed to load however, Spring (somewhat inexplicably) sets this attribute to be the exception rather than the context.  See org/springframework/web/context/ContextLoader.java line 202:
> 		catch (RuntimeException ex) {
> 			logger.error("Context initialization failed", ex);
> 			servletContext.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, ex);
> 			throw ex;
>                                            }
> To avoid repeated ClassCastExceptions that obscure the underlying problem with the Spring application context, CXFServlet should check the type of the attribute before attempting to cast to ApplicationContext:
>         if (ctx == null) {
>             Object ctxObject = svCtx
>                 .getAttribute("org.springframework.web.context.WebApplicationContext.ROOT");
>             if (ctxObject instanceof ApplicationContext) {
> 	      ctx = (ApplicationContext) ctxObject;
> 	    }
>         }

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