[UNDERTOW-2212] At the HttpClientTestCase.testSslServerIdentity test,…

… do not enforce the exception to be of type ClosedChannelException (see UNDERTOW-2249).

Signed-off-by: Flavia Rainone <frainone@redhat.com>

core/src/test/java/io/undertow/client/http/HttpClientTestCase.java

@@ -18,20 +18,6 @@
 
 package io.undertow.client.http;
 
-import java.io.IOException;
-import java.net.Inet6Address;
-import java.net.InetAddress;
-import java.net.URI;
-import java.net.URISyntaxException;
-import java.nio.ByteBuffer;
-import java.nio.channels.ClosedChannelException;
-import java.util.List;
-import java.util.concurrent.CopyOnWriteArrayList;
-import java.util.concurrent.CountDownLatch;
-import java.util.concurrent.TimeUnit;
-
-import javax.net.ssl.SSLContext;
-
 import io.undertow.client.ClientCallback;
 import io.undertow.client.ClientConnection;
 import io.undertow.client.ClientExchange;
@@ -67,6 +53,18 @@
 import org.xnio.channels.StreamSinkChannel;
 import org.xnio.ssl.XnioSsl;
 
+import javax.net.ssl.SSLContext;
+import java.io.IOException;
+import java.net.Inet6Address;
+import java.net.InetAddress;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.nio.ByteBuffer;
+import java.util.List;
+import java.util.concurrent.CopyOnWriteArrayList;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
+
 import static io.undertow.testutils.StopServerWithExternalWorkerUtils.stopWorker;
 
 /**
@@ -362,7 +360,8 @@ public void testSslServerIdentity() throws Exception {
             latch.await(10, TimeUnit.SECONDS);
 
             Assert.assertEquals(0, responses.size());
-            Assert.assertTrue(exception instanceof ClosedChannelException);
+            // see UNDERTOW-2249: assert exception instanceof ClosedChannelException
+            Assert.assertNotNull(exception);
         } finally {
             connection.getIoThread().execute(() -> IoUtils.safeClose(connection));
             DefaultServer.stopSSLServer();