Github user miguelaferreira commented on the pull request:
https://github.com/apache/cloudstack/pull/961#issuecomment-152474694
In tomcat I see the following errors:
```
Oct 30, 2015 9:39:13 AM org.apache.catalina.core.ApplicationDispatcher
invoke
SEVERE: Servlet.service() for servlet jsp threw exception
java.lang.IllegalStateException: Cannot create a session after the response
has been committed
at
org.apache.catalina.connector.Request.doGetSession(Request.java:2934)
at
org.apache.catalina.connector.Request.getSession(Request.java:2310)
at
org.apache.catalina.connector.RequestFacade.getSession(RequestFacade.java:897)
at
javax.servlet.http.HttpServletRequestWrapper.getSession(HttpServletRequestWrapper.java:229)
at
org.apache.catalina.core.ApplicationHttpRequest.getSession(ApplicationHttpRequest.java:569)
at
org.apache.catalina.core.ApplicationHttpRequest.getSession(ApplicationHttpRequest.java:514)
at
org.apache.jasper.runtime.PageContextImpl._initialize(PageContextImpl.java:147)
at
org.apache.jasper.runtime.PageContextImpl.initialize(PageContextImpl.java:126)
at
org.apache.jasper.runtime.JspFactoryImpl.internalGetPageContext(JspFactoryImpl.java:112)
at
org.apache.jasper.runtime.JspFactoryImpl.getPageContext(JspFactoryImpl.java:65)
at org.apache.jsp.dictionary_jsp._jspService(dictionary_jsp.java:66)
at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:748)
at
org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:604)
at
org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:543)
at
org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:954)
at org.apache.jsp.index_jsp._jspService(index_jsp.java:2735)
at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
```
Then is cascades for several other requests:
```
Oct 30, 2015 9:39:13 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [jsp] in context with path [/client]
threw exception [org.apache.jasper.JasperException:
javax.servlet.ServletException: java.lang.IllegalStateException: Cannot create
a session after the response has been committed] with root cause
java.lang.IllegalStateException: Cannot create a session after the response
has been committed
at
org.apache.catalina.connector.Request.doGetSession(Request.java:2934)
at
org.apache.catalina.connector.Request.getSession(Request.java:2310)
at
org.apache.catalina.connector.RequestFacade.getSession(RequestFacade.java:897)
at
javax.servlet.http.HttpServletRequestWrapper.getSession(HttpServletRequestWrapper.java:229)
at
org.apache.catalina.core.ApplicationHttpRequest.getSession(ApplicationHttpRequest.java:569)
at
org.apache.catalina.core.ApplicationHttpRequest.getSession(ApplicationHttpRequest.java:514)
at
org.apache.jasper.runtime.PageContextImpl._initialize(PageContextImpl.java:147)
at
org.apache.jasper.runtime.PageContextImpl.initialize(PageContextImpl.java:126)
at
org.apache.jasper.runtime.JspFactoryImpl.internalGetPageContext(JspFactoryImpl.java:112)
at
org.apache.jasper.runtime.JspFactoryImpl.getPageContext(JspFactoryImpl.java:65)
at org.apache.jsp.dictionary_jsp._jspService(dictionary_jsp.java:66)
at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
...
```
Even the error page does not show because of it
```
Oct 30, 2015 9:39:13 AM org.apache.catalina.core.StandardHostValve custom
SEVERE: Exception Processing ErrorPage[exceptionType=java.lang.Exception,
location=*/error.jsp*]
org.apache.jasper.JasperException: javax.servlet.ServletException:
java.lang.IllegalStateException: Cannot create a session after the response has
been committed
at
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:549)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:455)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
...
```
I'm not a web application expert, but I've looked at the code of the UI and
it seems that all "pages" are defined in a single page but hidden. If that is
the case, how can we disable session for one page but not for the others?
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