public PatternMatcher getPathMatcher() {
        return pathMatcher;
    }
Returns the {@code PatternMatcher} used when determining if an incoming request's path
matches a configured filter chain.  Unless overridden, the
default implementation is an {@link AntPathMatcher AntPathMatcher}.

@return the {@code PatternMatcher} used when determining if an incoming request's path
matches a configured filter chain.
web/src/main/java/org/apache/shiro/web/filter/mgt/PathMatchingFilterChainResolver.java