A DESCRIPTION OF THE PROBLEM :
When using Java SE 12.0.1 the list returned from ProxySelector.getDefault().select() always returns only one entry and that entry is of Type.DIRECT even when the client is behind a proxy.

This issue also exists in Java SE 13. But the problem does not exist (and the expected behavior happens) when using Java SE 8 update 201.

REGRESSION : Last worked in version 8

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Request the list of proxies for a URI (with a proxy in place) with the following method:
List proxyList = ProxySelector.getDefault().select(configURI);

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
When run with a proxy in place the returned list should contain proxy entries that include Type.HTTP and/or Type.SOCKS
ACTUAL -
The call ALWAYS returns only one result, and that result is always a proxy entry of Type.DIRECT

---------- BEGIN SOURCE ----------
            try {
                
                System.setProperty("java.net.useSystemProxies","true");

                URL configURL = "https://www.google.com";
                URI configURI = null;
                try {
                    configURI = configURL.toURI();
                }
                catch (Exception ex2) {
                    System.out.println("Unable to convert configURL to URI. Error: " + ex2.toString());
                }

                boolean bFoundProxyInfo = false;
                List proxyList = ProxySelector.getDefault().select(configURI);
                for (Iterator iter = proxyList.iterator(); iter.hasNext();) {
                    Proxy proxy = (Proxy)iter.next();
                    System.out.println("Proxy: " + proxy);
                    System.out.println("Proxy type: " + proxy.type());

                    InetSocketAddress addr = (InetSocketAddress)proxy.address();
                    if (addr != null) {
                        bFoundProxyInfo = true;
                        host = addr.getHostName();
                        port = String.valueOf(addr.getPort());
                        System.out.println("Proxy hostname: " + host);
                        System.out.println("Proxy port: " + port);
                    }
                    if (bFoundProxyInfo) break;
                }
            
            }
            catch (Exception ex) {
                    System.out.println("Unable to find proxy information using ProxySelector. Error: " + ex.toString());
            }
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
None.

FREQUENCY : always