Explicitly use ASCII charset

1 files changed, 6 insertions, 5 deletions

diff --git a/src/org/traccar/protocol/H02ProtocolDecoder.java b/src/org/traccar/protocol/H02ProtocolDecoder.java
index b316d8016..8230639e6 100644
--- a/src/org/traccar/protocol/H02ProtocolDecoder.java
+++ b/src/org/traccar/protocol/H02ProtocolDecoder.java
@@ -15,9 +15,6 @@
  */
 package org.traccar.protocol;
 
-import java.net.SocketAddress;
-import java.nio.charset.Charset;
-import java.util.regex.Pattern;
 import org.jboss.netty.buffer.ChannelBuffer;
 import org.jboss.netty.buffer.ChannelBuffers;
 import org.jboss.netty.channel.Channel;
@@ -30,6 +27,10 @@ import org.traccar.helper.PatternBuilder;
 import org.traccar.model.Event;
 import org.traccar.model.Position;
 
+import java.net.SocketAddress;
+import java.nio.charset.StandardCharsets;
+import java.util.regex.Pattern;
+
 public class H02ProtocolDecoder extends BaseProtocolDecoder {
 
     public H02ProtocolDecoder(H02Protocol protocol) {
@@ -193,12 +194,12 @@ public class H02ProtocolDecoder extends BaseProtocolDecoder {
             Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
 
         ChannelBuffer buf = (ChannelBuffer) msg;
-        String marker = buf.toString(0, 1, Charset.defaultCharset());
+        String marker = buf.toString(0, 1, StandardCharsets.US_ASCII);
 
         // handle X mode?
 
         if (marker.equals("*")) {
-            return decodeText(buf.toString(Charset.defaultCharset()), channel, remoteAddress);
+            return decodeText(buf.toString(StandardCharsets.US_ASCII), channel, remoteAddress);
         } else if (marker.equals("$")) {
             return decodeBinary(buf, channel, remoteAddress);
         }