We just upgraded from PRPC v6.1.2 to v7.2.1 (WAS + Oracle + Linux setup)
In the post upgrade phase the Websphere logs indicated an issue with availability of certificates while invoking SOAP connectors.
We were using Connect-SOAP to integrate with a Java based 'system of record' via TLS 1.2 and the connections were failing with the following error...
javax.net.ssl.SSLHandshakeException: java.security.cert.CertificateException: None of the TrustManagers allowed for trust of the SSL
certificate(s) provided by the remote server to which this client attempted a connection.
Issue occurs when 'Trust Store Path' is set to /profiles/ABCD/EFGH/IJKL/MNOP/QRST.UVW
Issue resolved when 'Trust Store Path' is reset as /xyz/WebSphereXX/ApplicationServer/java_X.X.X_XX/jre/lib/security/cacerts