Spring throws exception if the path variable contains special characters. I have tried the following solution :- 

```
<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>
</filter>

<filter-mapping>
    <filter-name>encodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>

```

but even after doing this i am unable to solve the issue. I have follwoing url-pattern /editMode/\*. But still it dosent works even after changing url pattern.
Also i am using backbone1.1.2 framework as front-end which internally used encodeURIComponent but still problem persists.