tomsun28 opened a new pull request #201: [SHIRO-742]fix throw exception when request uri is / URL: https://github.com/apache/shiro/pull/201 this bug due to my pr [SHIRO-682 fix the potential threat when use "uri = uri + '/' " to bypassed shiro](https://github.com/apache/shiro/pull/127) in 1.5, sorry as the @jaynlau [comment](https://github.com/apache/shiro/pull/181) under is @jaynlau report ```` Can not get the NamedFilterList when request uri is "/". java.lang.IllegalArgumentException: There is no configured chain under the name/key []. at org.apache.shiro.web.filter.mgt.DefaultFilterChainManager.proxy(DefaultFilterChainManager.java:322) ~[shiro-web-1.5.0.jar:1.5.0] at org.apache.shiro.web.filter.mgt.PathMatchingFilterChainResolver.getChain(PathMatchingFilterChainResolver.java:126) ~[shiro-web-1.5.0.jar:1.5.0] at org.apache.shiro.web.servlet.AbstractShiroFilter.getExecutionChain(AbstractShiroFilter.java:415) ~[shiro-web-1.5.0.jar:1.5.0] at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:448) ~[shiro-web-1.5.0.jar:1.5.0] at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365) ~[shiro-web-1.5.0.jar:1.5.0] at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90) ~[shiro-core-1.5.0.jar:1.5.0] at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83) ~[shiro-core-1.5.0.jar:1.5.0] at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:387) ~[shiro-core-1.5.0.jar:1.5.0] at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362) ~[shiro-web-1.5.0.jar:1.5.0] The value of pathPattern is changed from "/" to "" , matching path definition / = user failed. Because chainName is "/", not "". ```` this pr's solution is bypass substring when the request uri and pathPattern is / please let me konw if any other better solution, thanks @jaynlau ^~^
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