java.lang.IllegalStateException: getOutputStream() has already been called for 
this response error using the RI 1.2_01 and Tomahawk 1.1.3
-----------------------------------------------------------------------------------------------------------------------------------------

                 Key: TOMAHAWK-579
                 URL: http://issues.apache.org/jira/browse/TOMAHAWK-579
             Project: MyFaces Tomahawk
          Issue Type: Bug
          Components: ExtensionsFilter
    Affects Versions: 1.1.3
         Environment: OSX 10.4 Tomcat 5.5.17 JVM 5
            Reporter: Bryan Hansen


If I have the ExtensionsFilter configured in my web.xml it throws an error 
whenever a page is not found saying that the response is already committed 
instead of just displaying the 404 error page that I have created. 

java.lang.IllegalStateException: getOutputStream() has already been called for 
this response
        at org.apache.catalina.connector.Response.getWriter(Response.java:599)
        at 
org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:195)
        at 
org.apache.jasper.runtime.JspWriterImpl.initOut(JspWriterImpl.java:124)
        at 
org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:117)
        at 
org.apache.jasper.runtime.PageContextImpl.release(PageContextImpl.java:191)
        at 
org.apache.jasper.runtime.JspFactoryImpl.internalReleasePageContext(JspFactoryImpl.java:115)
        at 
org.apache.jasper.runtime.JspFactoryImpl.releasePageContext(JspFactoryImpl.java:75)
        at org.apache.jsp.errors._404_jsp._jspService(_404_jsp.java:67)

If I comment out the ExtensionsFilter it works fine and displays the 404 splash 
page from my application as it should. Here is the snippet from my web.xml:

      <filter>
                <filter-name>MyFacesExtensionsFilter</filter-name>
                
<filter-class>org.apache.myfaces.component.html.util.ExtensionsFilter</filter-class>
                <init-param>
                        <description>Set the size limit for uploaded files.
                                Format: 10 - 10 bytes
                                10k - 10 KB
                                10m - 10 MB
                                1g - 1 GB
                        </description>
                        <param-name>uploadMaxFileSize</param-name>
                        <param-value>100m</param-value>
                </init-param>
                <init-param>
                        <description>Set the threshold size - files
                                below this limit are stored in memory, files 
above
                                this limit are stored on disk.
                                
                                Format: 10 - 10 bytes
                                10k - 10 KB
                                10m - 10 MB
                                1g - 1 GB
                        </description>
                        <param-name>uploadThresholdSize</param-name>
                        <param-value>100k</param-value>
                </init-param>
        </filter> 

        <filter-mapping>
                <filter-name>MyFacesExtensionsFilter</filter-name>
                <url-pattern>*.jsf</url-pattern>
        </filter-mapping> 


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