[jira] [Created] (SHIRO-497) setFilterChainDefinitionMap accepts Map interface objects, whose implementations are mostly unordered

["Jon Steege (JIRA)" <ji...@apache.org>]

Jon Steege created SHIRO-497:
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             Summary: setFilterChainDefinitionMap accepts Map interface objects, whose implementations are mostly unordered
                 Key: SHIRO-497
                 URL: https://issues.apache.org/jira/browse/SHIRO-497
             Project: Shiro
          Issue Type: Improvement
          Components: Configuration
            Reporter: Jon Steege
            Priority: Minor


org.apache.shiro.spring.web.ShiroFilterFactoryBean has a method,  setFilterChainDefinitionMap which accepts Map interface objects. Most Map interface objects have no guaranteed order,  but the filter chain definitions rely heavily on specific ordering for the application of rules. 

For example, 

{code}
    Map<String, String> filterChainDefs = new LinkedHashMap<String, String>();
    filterChainDefs.put("/s/test", "authc");
    filterChainDefs.put("/s/**", "anon");
    shiroFilterFactoryBean.setFilterChainDefinitionMap(filterChainDefs);
{code}

In this example, this structure is acceptable to the setter on shiroFilterFactoryBean, but will non-deterministically allow or deny access to /s/test between server restarts. 



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