docs: public synchronized SSLConfig getOutboundDefaultSSLConfig() throws IllegalArgumentException {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              Tr.entry(tc, "getOutboundDefaultSSLConfig");
  
          SSLConfig outboundDefaultSSLConfig = null;
          String outboundDefaultAlias = getGlobalProperty(LibertyConstants.SSLPROP_OUTBOUND_DEFAULT_ALIAS);
  
          if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled())
              Tr.debug(tc, "outboundDefaultAlias: " + outboundDefaultAlias);
  
          if (outboundDefaultAlias != null) {
              outboundDefaultSSLConfig = sslConfigMap.get(outboundDefaultAlias);
  
              if (outboundDefaultSSLConfig != null) {
                  if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
                      Tr.exit(tc, "outboundDefaultAlias not null, getOutboundDefaultSSLConfig for: " + outboundDefaultAlias);
                  return outboundDefaultSSLConfig;
              }
          }
  
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              Tr.exit(tc, "defaultAlias is null");
          return null;
      }