Hello Tomcat Team, Thanks for your always support !!
We have a Struts 2 application with Tomcat 7 that runs on a proxy network. In one partcular case while browsing the application it was observed that simply navigating one particular screen multiple times raised a NoSuchMethodException exception once. This was observed in IE-10 browser running on Windows 8. It was occuring on a single system only and could not be reproduced on other systems.. The request as obatined in Tomcat catalina logs is as follows: 192.168.103.105 - - [14/Jul/2016:15:41:54 +0000] "POST /application/framework/SessionAction.action HTTP/1.1" 200 105 192.168.103.105 - - [14/Jul/2016:15:41:54 +0000] "POST /application/framework/SessionAction.action HTTP/1.1" 200 105 192.168.103.105 - - [14/Jul/2016:15:41:55 +0000] "CHEDFLAG=TRUEPOST /application/framework/SessionAction.action HTTP/1.1" 200 58209 Also when used Internet Explorer to debug the request we get the following details for the problem scenario: Request Headers Key Value Request POST http://192.168.133.120/Myapp/application/rpc_SessionAction.action HTTP/1.1 Referer http://192.168.133.120:8585/application/ Content-Type application/x-www-form-urlencoded X-Requested-With XMLHttpRequest Accept application/json, text/javascript, / Accept-Language en-IN,en;q=0.8,ja;q=0.6,zh-Hans-CN;q=0.4,zh-Hans;q=0.2 Accept-Encoding gzip, deflate User-Agent Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; WOW64; Trident/6.0) Host 192.168.133.120:8585 Content-Length 26 DNT 1 Proxy-Connection Keep-Alive Pragma no-cache Cookie JSESSIONID=7FE4DE04F3558B46B7D8252645ABFB5A; JSESSIONID=D4FD5A0D120AD35414A4E16C406DD06F Request Body method=fetch&names=tmpVal Response Headers Key Value Response HTTP/1.0 200 OK Server Apache-Coyote/1.1 Content-Type text/html;charset=utf-8 Date Thu, 14 Jul 2016 15:41:55 GMT X-Cache MISS from gateway1 X-Cache-Lookup MISS from gateway1 Via 1.0 gateway1 This request in the Struts filter gives null entry set. Why does the POST request get changed in this case and also entry set bencomes null? Regards, Rahul Kumar Singh