Add metadata for Netty SelectorProviderUtil (#382)

* Add metadata for Netty SelectorProviderUtil

* add testcase for Netty SelectorProviderUtil

Author: czp3009

metadata/io.netty/netty-common/4.1.80.Final/reflect-config.json

@@ -3838,6 +3838,34 @@
       }
     ]
   },
+  {
+    "condition": {
+      "typeReachable": "io.netty.channel.socket.nio.NioServerSocketChannel"
+    },
+    "name": "java.nio.channels.spi.SelectorProvider",
+    "methods": [
+      {
+        "name": "openServerSocketChannel",
+        "parameterTypes": [
+          "java.net.ProtocolFamily"
+        ]
+      }
+    ]
+  },
+  {
+    "condition": {
+      "typeReachable": "io.netty.channel.socket.nio.NioSocketChannel"
+    },
+    "name": "java.nio.channels.spi.SelectorProvider",
+    "methods": [
+      {
+        "name": "openSocketChannel",
+        "parameterTypes": [
+          "java.net.ProtocolFamily"
+        ]
+      }
+    ]
+  },
   {
     "condition": {
       "typeReachable": "io.netty.util.internal.logging.Slf4JLoggerFactory"

tests/src/io.netty/netty-common/4.1.80.Final/src/test/java/netty/NettyTests.java

@@ -7,6 +7,9 @@
 package netty;
 
 import java.io.InputStream;
+import java.net.Inet6Address;
+import java.nio.channels.UnsupportedAddressTypeException;
+import java.nio.channels.spi.SelectorProvider;
 import java.time.Duration;
 import java.util.Objects;
 import java.util.concurrent.atomic.AtomicReference;
@@ -56,8 +59,13 @@
 import io.netty.util.CharsetUtil;
 import org.awaitility.Awaitility;
 import org.hamcrest.CoreMatchers;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Assumptions;
 import org.junit.jupiter.api.Test;
 
+import static io.netty.channel.socket.InternetProtocolFamily.IPv4;
+import static io.netty.util.NetUtil.LOCALHOST;
+
 public class NettyTests {
     private static final int PORT = 8080;
 
@@ -71,6 +79,36 @@ public void noSsl() throws Exception {
         test(false);
     }
 
+    @Test
+    void testNioSocketChannel() {
+        Assumptions.assumeTrue(LOCALHOST instanceof Inet6Address);
+
+        EventLoopGroup group = new NioEventLoopGroup();
+        try {
+            Bootstrap b = new Bootstrap().group(group)
+                    .channelFactory(() -> new NioSocketChannel(SelectorProvider.provider(), IPv4))
+                    .handler(new LoggingHandler());
+            Assertions.assertThrows(UnsupportedAddressTypeException.class, () -> b.bind(LOCALHOST, 7777).sync().channel());
+        } finally {
+            group.shutdownGracefully();
+        }
+    }
+
+    @Test
+    void testNioServerSocketChannel() {
+        Assumptions.assumeTrue(LOCALHOST instanceof Inet6Address);
+
+        EventLoopGroup group = new NioEventLoopGroup();
+        try {
+            Bootstrap b = new Bootstrap().group(group)
+                    .channelFactory(() -> new NioServerSocketChannel(SelectorProvider.provider(), IPv4))
+                    .handler(new LoggingHandler());
+            Assertions.assertThrows(UnsupportedAddressTypeException.class, () -> b.bind(LOCALHOST, 7777).sync().channel());
+        } finally {
+            group.shutdownGracefully();
+        }
+    }
+
     private void test(boolean ssl) throws Exception {
         EventLoopGroup bossGroup = new NioEventLoopGroup(1);
         EventLoopGroup workerGroup = new NioEventLoopGroup();