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This product reached the end of support date on March 31, 2021.

AppMon causing exception?

alonso_almuna
Newcomer

Hi, I'm getting the following exception I think is caused by AppMon:

Exception Details Throwing Class: weblogic.servlet.FileServlet Throwing Method: sendFile Count: 281 Exception Class: java.lang.ClassCastException Message: com.dynatrace.diagnostics.agent.introspection.uem.impl.AutoHtmlInjectorStream cannot be cast to weblogic.servlet.internal.ServletOutputStreamImpl Exception StackTrace Method Class Line File Name sendFile weblogic.servlet.FileServlet 410 <unknown> doGetHeadPost weblogic.servlet.FileServlet 234 <unknown> service weblogic.servlet.FileServlet 173 <unknown> service javax.servlet.http.HttpServlet 820 <unknown> run weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction 227 <unknown> invokeServlet weblogic.servlet.internal.StubSecurityHelper 125 <unknown> execute weblogic.servlet.internal.ServletStubImpl 300 <unknown> doFilter weblogic.servlet.internal.TailFilter 26 <unknown> doFilter weblogic.servlet.internal.FilterChainImpl 56 <unknown> doFilter cl.bci.infraestructura.web.seguridad.filtro.FiltroSeguridad - <unknown> doFilter weblogic.servlet.internal.FilterChainImpl 56 <unknown> doFilter weblogic.servlet.internal.RequestEventsFilter 27 <unknown> doFilter weblogic.servlet.internal.FilterChainImpl 56 <unknown> wrapRun weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction 3715 <unknown> run weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction 3681 <unknown> doAs weblogic.security.acl.internal.AuthenticatedSubject 321 <unknown> runAs weblogic.security.service.SecurityManager 120 <unknown> securedExecute weblogic.servlet.internal.WebAppServletContext 2277 <unknown> execute weblogic.servlet.internal.WebAppServletContext 2183 <unknown> run weblogic.servlet.internal.ServletRequestImpl 1454 <unknown> execute weblogic.work.ExecuteThread 207 <unknown> run weblogic.work.ExecuteThread 176 <unknown>

Any ideas?

3 REPLIES 3

Cody_Kachelski
Dynatrace Helper
Dynatrace Helper

Hi Alonso,

From reading through the exception, it looks as though there may be an issue with our UEM which dynamically injects javascript, perhaps something within weblogic is preventing this. I think the best way to investigate may be to open a support ticket, and provide a support archive, which includes this log file.

-Cody

alonso_almuna
Newcomer

Cody, thank you for your answer !

No Problem Alonso,

Were you able to resolve this issue? Or did you open a support ticket?

If you were able to resolve, please provide some details for future reference, Thanks!

-Cody