I just upgraded my test box from Zimbra 7.2.1 OSE to 8.0 GA OSE on Ubuntu 10.04 LTS 64bit and the process went very smoothly, but as soon as i tried logging into the admin or client web gui's, i get a 500 error. I cant find any action log entries that give any other information about why or where the 500 error happened, just that it did happen. The closet thing i can find is a java error that is a bit vague:

Code:
2012-09-25 16:30:09.362:WARN:oejs.ServletHandler:/zimbra/
org.apache.jasper.JasperException: PWC6033: Error in Javac compilation for JSP||PWC6199: Generated servlet error:|cannot find symbol|  symbol:   class ResourceInjector|  location: package org.apache.jasper.runtime||PWC6199: Generated servlet error:|cannot find symbol|  symbol:   class ResourceInjector|  location: package org.apache.jasper.runtime||PWC6199: Generated servlet error:|Some input files use unchecked or unsafe operations.||PWC6199: Generated servlet error:|Recompile with -Xlint:unchecked for details.||
	at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:126)
	at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:296)
	at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:372)
	at org.apache.jasper.compiler.Compiler.compile(Compiler.java:433)
	at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:608)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:476)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:366)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
	at com.zimbra.webClient.servlet.JspServlet.service(JspServlet.java:56)
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:565)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:479)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:542)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:227)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1031)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:406)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:186)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:965)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
	at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:288)
	at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:115)
	at org.eclipse.jetty.servlet.DefaultServlet.doGet(DefaultServlet.java:557)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:565)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1361)
	at com.zimbra.webClient.filters.ForwardFilter.doFilter(ForwardFilter.java:61)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1332)
	at com.zimbra.cs.servlet.SetHeaderFilter.doFilter(SetHeaderFilter.java:57)
	at com.zimbra.webClient.filters.SetHeaderFilter.doFilter(SetHeaderFilter.java:246)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1332)
	at org.eclipse.jetty.servlets.UserAgentFilter.doFilter(UserAgentFilter.java:77)
	at org.eclipse.jetty.servlets.GzipFilter.doFilter(GzipFilter.java:181)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1332)
	at org.eclipse.jetty.servlets.DoSFilter.doFilterChain(DoSFilter.java:464)
	at org.eclipse.jetty.servlets.DoSFilter.doFilter(DoSFilter.java:327)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1332)
	at com.zimbra.webClient.filters.CharEncodingFilter.doFilter(CharEncodingFilter.java:35)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1332)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:477)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:524)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:227)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1031)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:406)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:186)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:965)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
	at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:250)
	at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:149)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:111)
	at org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:312)
	at org.eclipse.jetty.server.handler.DebugHandler.handle(DebugHandler.java:77)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:111)
	at org.eclipse.jetty.server.Server.handle(Server.java:349)
	at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:452)
	at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:884)
	at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:938)
	at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:634)
	at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:230)
	at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:77)
	at org.eclipse.jetty.io.nio.SslConnection.handle(SslConnection.java:191)
	at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:606)
	at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:46)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:603)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:538)
	at java.lang.Thread.run(Thread.java:722)
Total time for which application threads were stopped: 0.0027430 seconds
Total time for which application threads were stopped: 0.0000720 seconds
Total time for which application threads were stopped: 0.0002230 seconds
Any suggestions? Ive parsed all the logs in /opt/zimbra/log/ (no idea why they have it singular) with no useful information to help me troubleshoot the issue.