Merge pull request #9624 from luvarqpp/patch-1

Fix exception when receiving POISON_PILL

core-java-modules/core-java-nio-2/src/main/java/com/baeldung/selector/EchoServer.java

@@ -49,11 +49,11 @@ public class EchoServer {
         if (new String(buffer.array()).trim().equals(POISON_PILL)) {
             client.close();
             System.out.println("Not accepting client messages anymore");
+        } else {
+            buffer.flip();
+            client.write(buffer);
+            buffer.clear();
         }
-
-        buffer.flip();
-        client.write(buffer);
-        buffer.clear();
     }
 
     private static void register(Selector selector, ServerSocketChannel serverSocket) throws IOException {