it might happen that it is alredy saving, so make sure that test won't fail because of this

src/test/java/redis/clients/jedis/tests/commands/ControlCommandsTest.java

@@ -12,8 +12,13 @@ import redis.clients.jedis.exceptions.JedisDataException;
 public class ControlCommandsTest extends JedisCommandTestBase {
     @Test
     public void save() {
+	try {
 	    String status = jedis.save();
 	    assertEquals("OK", status);
+	} catch (JedisDataException e) {
+	    assertTrue("ERR Background save already in progress"
+		    .equalsIgnoreCase(e.getMessage()));
+	}
     }
 
     @Test