when setting timeout infinite, make sure it is connected first

src/main/java/redis/clients/jedis/Connection.java

@@ -38,6 +38,9 @@ public class Connection {
 
     public void setTimeoutInfinite() {
         try {
+            if(!isConnected()) {
+        	connect();
+            }
             socket.setKeepAlive(true);
             socket.setSoTimeout(0);
         } catch (SocketException ex) {

src/test/java/redis/clients/jedis/tests/ConnectionTest.java

@@ -33,4 +33,12 @@ public class ConnectionTest extends Assert {
         client.setPort(55665);
         client.connect();
     }
+    
+    @Test
+    public void connectIfNotConnectedWhenSettingTimeoutInfinite() {
+	client.setHost("localhost");
+        client.setPort(6379);
+	client.setTimeoutInfinite();
+    }
+
 }