cleanup work and starting new tests

httpclient/src/test/java/org/baeldung/httpclient/HttpClientConnectionManagementTest.java

@@ -1,5 +1,9 @@
 package org.baeldung.httpclient;
 
+import java.io.IOException;
+import java.util.concurrent.ExecutionException;
+
+import org.apache.http.HttpException;
 import org.apache.http.HttpHost;
 import org.apache.http.client.protocol.HttpClientContext;
 import org.apache.http.conn.ConnectionRequest;
@@ -7,16 +11,19 @@ import org.apache.http.conn.routing.HttpRoute;
 import org.apache.http.impl.conn.BasicHttpClientConnectionManager;
 import org.junit.Test;
 
+@SuppressWarnings("unused")
 public class HttpClientConnectionManagementTest {
 
     // tests
 
     @Test
-    public final void whenLowLevelConnectionIsEstablished_thenNoExceptions() {
+    public final void whenLowLevelConnectionIsEstablished_thenNoExceptions() throws IOException, HttpException, InterruptedException, ExecutionException {
         final HttpClientContext context = HttpClientContext.create();
         final BasicHttpClientConnectionManager connManager = new BasicHttpClientConnectionManager();
         final HttpRoute route = new HttpRoute(new HttpHost("localhost", 80));
         final ConnectionRequest connRequest = connManager.requestConnection(route, null);
+
+        connManager.shutdown();
     }
 
 }