struts1filter-issue

Sample application to reproduce issue 1 when this filter is used.

The ParamWrapperFilter in already in the project (copied as is). Futhermore, I have also included a ParamWrapperFilterOld class that removes the getParameterNames override (as it was in the original filter). Simply change to web.xml file to swith between filters.

To reproduce the issue navigate to the application (ie http://localhost:8080/sample), enter anything in the form and press submit; you should get the following error:

java.lang.NullPointerException
  java.lang.Class.isAssignableFrom(Native Method)
  org.apache.struts.util.RequestUtils.rationalizeMultipleFileProperty(RequestUtils.java:506)
  org.apache.struts.util.RequestUtils.populate(RequestUtils.java:459)
  org.apache.struts.chain.commands.servlet.PopulateActionForm.populate(PopulateActionForm.java:50)
  org.apache.struts.chain.commands.AbstractPopulateActionForm.execute(AbstractPopulateActionForm.java:60)
  org.apache.struts.chain.commands.ActionCommandBase.execute(ActionCommandBase.java:51)
  org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:191)
  org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.java:305)
  org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:191)
  org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:283)
  org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
  org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:462)
  javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
  javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
  org.apache.struts.chain.commands.servlet.PerformForward.handleAsForward(PerformForward.java:113)
  org.apache.struts.chain.commands.servlet.PerformForward.perform(PerformForward.java:96)
  org.apache.struts.chain.commands.AbstractPerformForward.execute(AbstractPerformForward.java:54)
  org.apache.struts.chain.commands.ActionCommandBase.execute(ActionCommandBase.java:51)
  org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:191)
  org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.java:305)
  org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:191)
  org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:283)
  org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
  org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:462)
  javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
  javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
  org.apache.struts.chain.commands.servlet.PerformForward.handleAsForward(PerformForward.java:113)
  org.apache.struts.chain.commands.servlet.PerformForward.perform(PerformForward.java:96)
  org.apache.struts.chain.commands.AbstractPerformForward.execute(AbstractPerformForward.java:54)
  org.apache.struts.chain.commands.ActionCommandBase.execute(ActionCommandBase.java:51)
  org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:191)
  org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.java:305)
  org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:191)
  org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:283)
  org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
  org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:462)
  javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
  javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
  de.rgielen.struts1.filter.ParamWrapperFilter.doFilter(ParamWrapperFilter.java:73)

Running the application:

This sample application expects to have a Apache Tomcat 7.0.X installation located at C:/tomcat in order to compile.

The application can be run with eclipse, with a Tomcat 7 server

TODO:

• Remove compile time dependency on local Tomcat jars
• migrate the project to be built with maven (remove jars from repo)