8377015: ConnectionRefusedMessage::testFinishConnect test fails on AIX with java.net.ConnectException: Connection refused

Reviewed-by: alanb, mbaesken

Author: jaikiran

test/jdk/java/nio/channels/Selector/ConnectionRefusedMessage.java

@@ -69,7 +69,15 @@ void testFinishConnect() throws Exception {
             sc.register(selector, SelectionKey.OP_CONNECT);
 
             System.err.println("establishing connection to " + destAddr);
-            boolean connected = sc.connect(destAddr);
+            boolean connected;
+            try {
+                connected = sc.connect(destAddr);
+            } catch (ConnectException ce) {
+                // Connect failed immediately, which is OK.
+                System.err.println("SocketChannel.connect() threw ConnectException - " + ce);
+                assertExceptionMessage(ce);
+                return; // nothing more to test
+            }
             // this test checks the exception message of a ConnectException, so it's
             // OK to skip the test if something unexpectedly accepted the connection
             assumeFalse(connected, "unexpectedly connected to " + destAddr);
@@ -90,17 +98,22 @@ void testFinishConnect() throws Exception {
                     // with a return value of false
                     fail("ConnectException was not thrown");
                 } catch (ConnectException ce) {
-                    System.err.println("got (expected) ConnectException - " + ce);
+                    System.err.println("got (expected) ConnectException from " +
+                            "SocketChannel.finishConnect() - " + ce);
                     // verify exception message
-                    if (!"Connection refused".equals(ce.getMessage())) {
-                        // propagate the original exception
-                        fail("unexpected exception message: " + ce.getMessage(), ce);
-                    }
+                    assertExceptionMessage(ce);
                 }
             }
         }
     }
 
+    private static void assertExceptionMessage(final ConnectException ce) {
+        if (!"Connection refused".equals(ce.getMessage())) {
+            // propagate the original exception
+            fail("unexpected exception message: " + ce.getMessage(), ce);
+        }
+    }
+
     // Try to find a suitable port to provoke a "Connection Refused" error.
     private static InetSocketAddress findSuitableRefusedAddress() throws IOException {
         final InetAddress loopbackAddr = InetAddress.getLoopbackAddress();