Insight Manager 7 hangs (Java problem?)

[William Weis]

About a month ago, my Insight Manager 7.0 SP2.3 started acting "funny". Some of the panes on the management screen wouldn't display and I would get something like this:

"Servlet has thrown exception:javax.servlet.ServletException javax.servlet.ServletException at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:437) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at org.w3c.jigsaw.servlet.ServletWrapper.service(ServletWrapper.java:278) at org.w3c.jigsaw.servlet.ServletWrapperFrame.perform(ServletWrapperFrame.java:125) at org.w3c.tools.resources.FramedResource.performFrames(FramedResource.java:658) at org.w3c.tools.resources.FramedResource.perform(FramedResource.java:676) at org.w3c.jigsaw.http.httpsd.perform(httpsd.java) at org.w3c.jigsaw.servlet.ServletMapperFrame.perform(ServletMapperFrame.java:119) at org.w3c.tools.resources.FramedResource.performFrames(FramedResource.java:658) at org.w3c.tools.resources.FramedResource.perform(FramedResource.java:676) at org.w3c.jigsaw.http.httpsd.perform(httpsd.java) at org.w3c.jigsaw.http.Client.processRequest(Client.java:451) at org.w3c.jigsaw.http.Client.startConnection(Client.java:597) at org.w3c.jigsaw.http.socket.SocketClient.run(SocketClient.java:121) at org.w3c.util.CachedThread.run(ThreadCache.java:87)

and in another pane a standard "This page cannot be displayed".

I have to manually stop the Insight Manager service, let it rest for 10 minutes, and start it back up again. Task Manager shows java.exe consuming 90% of the available memory until I stop the service. A google search of the error message brings up nothing.

Does anyone have any ideas?