diff --git a/src/main/java/org/traccar/protocol/GalileoProtocolDecoder.java b/src/main/java/org/traccar/protocol/GalileoProtocolDecoder.java
index bce09c7be..161f3734d 100644
--- a/src/main/java/org/traccar/protocol/GalileoProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/GalileoProtocolDecoder.java
@@ -63,43 +63,33 @@ public class GalileoProtocolDecoder extends BaseProtocolDecoder {
 
     private static final Map<Integer, Integer> TAG_LENGTH_MAP = new HashMap<>();
 
+    private static void addTagLength(int length, int... tags) {
+        for (int tag : tags) {
+            TAG_LENGTH_MAP.put(tag, length);
+        }
+    }
+
     static {
-        int[] l1 = {
-            0x01, 0x02, 0x35, 0x43, 0xc4, 0xc5, 0xc6, 0xc7,
-            0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
-            0xd0, 0xd1, 0xd2, 0xd5, 0x88, 0x8a, 0x8b, 0x8c,
-            0xa0, 0xaf, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6,
-            0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae
-        };
-        int[] l2 = {
-            0x04, 0x10, 0x34, 0x40, 0x41, 0x42, 0x45, 0x46,
-            0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x60, 0x61,
-            0x62, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76,
-            0x77, 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6,
-            0xb7, 0xb8, 0xb9, 0xd6, 0xd7, 0xd8, 0xd9, 0xda
-        };
-        int[] l3 = {
-            0x63, 0x64, 0x6f, 0x5d, 0x65, 0x66, 0x67, 0x68,
-            0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0xfa
-        };
-        int[] l4 = {
-            0x20, 0x33, 0x44, 0x90, 0xc0, 0xc2, 0xc3, 0xd3,
-            0xd4, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, 0xf0, 0xf9,
-            0x5a, 0x47, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6,
-            0xf7, 0xf8, 0xe2, 0xe9
-        };
-        for (int i : l1) {
-            TAG_LENGTH_MAP.put(i, 1);
-        }
-        for (int i : l2) {
-            TAG_LENGTH_MAP.put(i, 2);
-        }
-        for (int i : l3) {
-            TAG_LENGTH_MAP.put(i, 3);
-        }
-        for (int i : l4) {
-            TAG_LENGTH_MAP.put(i, 4);
-        }
+        addTagLength(1,
+                0x01, 0x02, 0x35, 0x43, 0xc4, 0xc5, 0xc6, 0xc7,
+                0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
+                0xd0, 0xd1, 0xd2, 0xd5, 0x88, 0x8a, 0x8b, 0x8c,
+                0xa0, 0xaf, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6,
+                0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae);
+        addTagLength(2,
+                0x04, 0x10, 0x34, 0x40, 0x41, 0x42, 0x45, 0x46,
+                0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x60, 0x61,
+                0x62, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76,
+                0x77, 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6,
+                0xb7, 0xb8, 0xb9, 0xd6, 0xd7, 0xd8, 0xd9, 0xda);
+        addTagLength(3,
+                0x63, 0x64, 0x6f, 0x5d, 0x65, 0x66, 0x67, 0x68,
+                0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0xfa);
+        addTagLength(4,
+                0x20, 0x33, 0x44, 0x90, 0xc0, 0xc2, 0xc3, 0xd3,
+                0xd4, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, 0xf0, 0xf9,
+                0x5a, 0x47, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6,
+                0xf7, 0xf8, 0xe2, 0xe9);
         TAG_LENGTH_MAP.put(0x5b, 7); // variable length
         TAG_LENGTH_MAP.put(0x5c, 68);
         TAG_LENGTH_MAP.put(0xfd, 8);