3 files changed, 5 insertions, 4 deletions
diff --git a/src/org/traccar/helper/DateUtil.java b/src/org/traccar/helper/DateUtil.java
index 9d4148ac1..0dca88a2b 100644
--- a/src/org/traccar/helper/DateUtil.java
+++ b/src/org/traccar/helper/DateUtil.java
@@ -18,7 +18,10 @@ package org.traccar.helper;
 import java.util.Calendar;
 import java.util.Date;
 
-public class DateUtil {
+public final class DateUtil {
+
+    private DateUtil() {
+    }
 
     public static Date correctDay(Date guess) {
         return correctDate(new Date(), guess, Calendar.DAY_OF_MONTH);
diff --git a/src/org/traccar/protocol/NvsProtocolDecoder.java b/src/org/traccar/protocol/NvsProtocolDecoder.java
index 3c42843f0..3656f4be2 100644
--- a/src/org/traccar/protocol/NvsProtocolDecoder.java
+++ b/src/org/traccar/protocol/NvsProtocolDecoder.java
@@ -16,10 +16,8 @@
 package org.traccar.protocol;
 
 import org.jboss.netty.buffer.ChannelBuffer;
-import org.jboss.netty.buffer.ChannelBuffers;
 import org.jboss.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
-import org.traccar.helper.BitUtil;
 import org.traccar.helper.UnitsConverter;
 import org.traccar.model.Event;
 import org.traccar.model.Position;
diff --git a/src/org/traccar/web/WebServer.java b/src/org/traccar/web/WebServer.java
index 85cc5f75c..d6cd19d87 100644
--- a/src/org/traccar/web/WebServer.java
+++ b/src/org/traccar/web/WebServer.java
@@ -150,7 +150,7 @@ public class WebServer {
         ServletContextHandler servletHandler = new ServletContextHandler(ServletContextHandler.SESSIONS);
         servletHandler.setContextPath("/api");
         servletHandler.getSessionHandler().setSessionManager(sessionManager);
-        
+
         servletHandler.addServlet(new ServletHolder(new AsyncServlet()), "/async/*");
         servletHandler.addServlet(new ServletHolder(new ServerServlet()), "/server/*");
         servletHandler.addServlet(new ServletHolder(new UserServlet()), "/user/*");