When trying to monitor Oracle instance configured for SSL, the following type of errors can be displayed:
IO Error: General SSLEngine problem, connect lapse 32 ms., Authentication lapse 0 ms
IO Error: IO Error PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target, connect lapse 80 ms., Authentication lapse 0 ms.
IO Error: Connection closed, connect lapse 62 ms., Authentication lapse 0 ms.
CAUSE 1
SSL certificate needs to be imported.
CAUSE 2
Oracle Wallet configuration missing in SQLNET.ORA
