Agent Error - Class not found BrtmHTTPResponseTracer

Products

• CA Application Performance Management Agent (APM / Wily / Introscope)
• CA Application Performance Management (APM / Wily / Introscope)
• INTROSCOPE
• DX Application Performance Management

Issue/Introduction

We are upgrading agents from version 10.5 to version 10.7 on Jetty Server. 
After the upgrade agent is running and is showing  following errors.

java.lang.ClassNotFoundException: com/wily/introscope/agent/brtm/trace/BrtmHTTPResponseTracer

java.lang.ClassNotFoundException: com/wily/introscope/agent/brtm/trace/BrtmTracer

Unable to create tracer factories for the following class (library not found): com.wily.introscope.agent.brtm.trace.BrtmTracer

Environment

Release : 10.7.0

Component : APM Agents

Resolution

Made the following adjustments which resolved this issue.

stop JVM.

Make a back up of files.
/opt/jetty/CA/wily/core/config/IntroscopeAgent.profile
/opt/jetty/CA/wily/core/config/default-typical.pbl

In file /opt/jetty/CA/wily/core/config/IntroscopeAgent.profile.
introscope.autoprobe.directivesFile=default-typical.pbl,hotdeploy

In file /opt/jetty/CA/wily/core/config/default-typical.pbl

comment out the following PBD.

#browseragent.pbd

start JVM.