Lost admin access after update.

Hello. I recently updated my windows server installation to the latest (4.0.2). Everything seemed to go fine, however now I cannot log into admin via the web console.

Login page loads fine but when submitting credentials it returns the following error.  Tried the normal stuff like restart server, restart machine, update Java. No change.

Any suggestions? Thank you in advance.

-Don

HTTP ERROR 500

Problem accessing /index.jsp. Reason:

    Server Error

Caused by:

java.lang.AbstractMethodError: javax.servlet.jsp.JspFactory.getJspApplicationContext(Ljavax/servlet/ServletContext;)Ljavax/servlet/jsp/JspApplicationContext;
at org.jivesoftware.openfire.admin.index_jsp._jspInit(index_jsp.java:82)
at org.apache.jasper.runtime.HttpJspBase.init(HttpJspBase.java:79)
at org.eclipse.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:616)
at org.eclipse.jetty.servlet.ServletHolder.getServlet(ServletHolder.java:472)
at org.eclipse.jetty.servlet.ServletHolder.ensureInstance(ServletHolder.java:767)
at org.eclipse.jetty.servlet.ServletHolder.prepare(ServletHolder.java:752)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:582)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:215)
at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
at org.eclipse.jetty.server.Server.handle(Server.java:499)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
at java.lang.Thread.run(Unknown Source)