Encounter error in starting the java agent

Hi,

Below error is encountering while starting the java agents.

*ERROR* [FelixDispatchQueue] org.apache.felix.http.jetty
FrameworkEvent ERROR (org.osgi.framework.BundleException: Activator start error
in bundle org.apache.felix.http.jetty [40].)
org.osgi.framework.BundleException: Activator start error in
bundle org.apache.felix.http.jetty [40].
        at org.apache.felix.framework.Felix.activateBundle(Felix.java:2277)
        at org.apache.felix.framework.Felix.startBundle(Felix.java:2145)
        at org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1372)
        at org.apache.felix.framework.FrameworkStartLevelImpl.run(FrameworkStartLevelImpl.java:308)
        at java.lang.Thread.run(Thread.java:748)
Caused
by: java.lang.NoClassDefFoundError: com/dynatrace/diagnostics/agent/introspection/uem/ServletEndUserTaggingIntrospection
        at javax.servlet.GenericServlet.<clinit>(GenericServlet.java)
        at org.apache.felix.http.base.internal.whiteboard.WhiteboardManager.<init>(WhiteboardManager.java:134)
        at org.apache.felix.http.base.internal.HttpServiceController.<init>(HttpServiceController.java:55)
        at org.apache.felix.http.base.internal.AbstractHttpActivator.doStart(AbstractHttpActivator.java:33)
        at org.apache.felix.http.jetty.internal.JettyActivator.doStart(JettyActivator.java:41)        at org.apache.felix.http.base.internal.AbstractActivator.start(AbstractActivator.java:42)
        at org.apache.felix.framework.util.SecureAction.startActivator(SecureAction.java:697)        at  org.apache.felix.framework.Felix.activateBundle(Felix.java:2227)
        ... 4 common
frames omitted
Caused
by: java.lang.ClassNotFoundException:
com.dynatrace.diagnostics.agent.introspection.uem.ServletEndUserTaggingIntrospection
not found by org.apache.felix.http.servlet-api [41]