code: @Override
      public PrivateKey getPrivateKey(String s) {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              Tr.entry(tc, "getPrivateKey", new Object[] { s });
  
          PrivateKey rc = getX509KeyManager().getPrivateKey(s);
  
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              Tr.exit(tc, "getPrivateKey -> " + (null != rc));
          return rc;
      }
docs: /*
  @see javax.net.ssl.X509KeyManager#getPrivateKey(java.lang.String)