I'm trying to get started with Jenkins and cannot launch Jenkins by following the instructions for installation of Jenkins as a Windows Service.
I've downloaded the latest jenkins.war and run the "java -jar jenkins.war" on the command prompt.
While loading the dependencies, following warning came up: "WARNING: Non-XML-Schema-compliant parser detected. Servlet spec <= 2.3 supported".
However I ran "http://localhost:8080" on Firefox 11 and an 500 error code came up with the following stack trace:

java.lang.NoSuchMethodError: org.dom4j.io.OutputFormat.setXHTML(Z)V
at org.kohsuke.stapler.jelly.HTMLWriterOutput.createFormat(HTMLWriterOutput.java:56)
at org.kohsuke.stapler.jelly.HTMLWriterOutput.create(HTMLWriterOutput.java:45)
at org.kohsuke.stapler.jelly.DefaultScriptInvoker.createXMLOutput(DefaultScriptInvoker.java:68)
at org.kohsuke.stapler.jelly.DefaultScriptInvoker.invokeScript(DefaultScriptInvoker.java:51)
at org.kohsuke.stapler.jelly.JellyClassTearOff.serveIndexJelly(JellyClassTearOff.java:107)
at org.kohsuke.stapler.jelly.JellyFacet.handleIndexRequest(JellyFacet.java:127)
at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:560)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:656)
at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:622)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:656)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:485)
at org.kohsuke.stapler.Stapler.service(Stapler.java:159)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:45)
at winstone.ServletConfiguration.execute(ServletConfiguration.java:248)
at winstone.RequestDispatcher.forward(RequestDispatcher.java:333)
at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:376)
at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:95)
at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:87)
at winstone.FilterConfiguration.execute(FilterConfiguration.java:194)
at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366)
at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:47)
at winstone.FilterConfiguration.execute(FilterConfiguration.java:194)
at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84)
at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76)
at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164)
at winstone.FilterConfiguration.execute(FilterConfiguration.java:194)
at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366)
at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:81)
at winstone.FilterConfiguration.execute(FilterConfiguration.java:194)
at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366)
at winstone.RequestDispatcher.forward(RequestDispatcher.java:331)
at winstone.RequestHandlerThread.processRequest(RequestHandlerThread.java:215)
at winstone.RequestHandlerThread.run(RequestHandlerThread.java:138)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)

A part from java is there any prerequisites I need to get Jenkins properly run on a windows 7 system.
Thx for your suggestions.