请求同一个接口。
第一次请求，报如下错误信息：
但是第二次请求并不会报错。
javax.servlet.ServletException: java.lang.RuntimeException: java.lang.OutOfMemoryError: Java heap space
at org.apache.shiro.web.servlet.AdviceFilter.cleanup(AdviceFilter.java:196)
at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:148)
at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449)
at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)
at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383)
at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)
at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)
at com.tzding.tzd.application.filter.RouteFilter.doFilter(RouteFilter.java:61)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)
at org.nutz.mvc.WhaleFilter.do