IBM APM SaaS Data Power agents NOT showing in the APM Dashboard

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Having issues with the APM Data Power Agent, the DP agents instances have been configured successfully and are running, but they do not report on the APM Dashboard.
 

Symptom:  The Data Power Agent instance operation logs continually show the following error,

[2019-07-15T13:52:42.824-0400] - ERROR - prflucdagt02 - pool-1-thread-1 - com.ibm.management.soa.dp.monitor.agent.server.KBNSomaSystemUsageTable.getSystemUsageTableStatus - [subnode=hostname02; hostname=192.168.0.225;] occured exception java.lang.IllegalArgumentException: no SSLSocketFactory specified

[2019-07-15T13:52:42.824-0400] - ERROR - prflucdagt02 - pool-1-thread-5 - com.ibm.management.soa.dp.monitor.agent.server.KBNSomaSystemUsage.getSystemUsageStatus - [subnode=hostname02; hostname=192.168.0.225;] occured exception java.lang.IllegalArgumentException: no SSLSocketFactory specified
 

Cause:  The "no SSLSocketFactory specified" errors, means the first thing you need to check is whether the file “cacerts” is valid.
 

Resolving the problem:

Try the following commands to check whether the file “cacerts” is valid.

cd $Agent_JAVA_Home/bin

keytool -list -trustcacerts -keystore ../lib/security/cacerts -storepass changeit

On Linux systems, the $Agent_JAVA_Home is like "$Agent_install_Dir/JRE/lx8266/jre"

If you cannot list the certificates.

You can copy a valid cacerts to replace it then restart agent.