I ecountered the same problem .
I add
    <filter>
        <filter-name>encodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter
</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
        <init-param>
            <param-name>forceEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>encodingFilter</filter-name>
        <url-pattern>*.html</url-pattern>
    </filter-mapping>
    <filter-mapping>
        <filter-name>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
  <filter>
to web.xml. works fine.

2007/9/18, Christian Koeberl <[EMAIL PROTECTED]>:
>
> > After packaging new package, but occur NullPointer Exception:
> > because request.getCharacterEncoding() == null
>
> You also have to add the UTF-8 filter described in
> http://wiki.apache.org/tapestry/Tapestry5Utf8Encoding
>
> --
> Chris

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