1 files changed, 5 insertions, 8 deletions
diff --git a/src/main/java/org/traccar/handler/ComputedAttributesHandler.java b/src/main/java/org/traccar/handler/ComputedAttributesHandler.java
index 24d853bbe..29d9bcdcb 100644
--- a/src/main/java/org/traccar/handler/ComputedAttributesHandler.java
+++ b/src/main/java/org/traccar/handler/ComputedAttributesHandler.java
@@ -24,6 +24,7 @@ import java.util.Collections;
 import java.util.HashSet;
 import java.util.Map;
 import java.util.Set;
+import java.util.List;
 
 import io.netty.channel.ChannelHandler;
 import org.apache.commons.jexl3.JexlFeatures;
@@ -65,14 +66,10 @@ public class ComputedAttributesHandler extends BaseDataHandler {
         JexlSandbox sandbox = new JexlSandbox(false);
         sandbox.allow("com.safe.Functions");
         sandbox.allow(Math.class.getName());
-        sandbox.allow(Double.class.getName());
-        sandbox.allow(Float.class.getName());
-        sandbox.allow(Integer.class.getName());
-        sandbox.allow(Long.class.getName());
-        sandbox.allow(Short.class.getName());
-        sandbox.allow(Character.class.getName());
-        sandbox.allow(Boolean.class.getName());
-        sandbox.allow(String.class.getName());
+        List.of(Double.class, Float.class, Integer.class,
+                        Long.class, Short.class, Character.class,
+                        Boolean.class, String.class, Byte.class)
+                .forEach((type) -> sandbox.allow(type.getName()));
         features = new JexlFeatures()
                 .localVar(config.getBoolean(Keys.PROCESSING_COMPUTED_ATTRIBUTES_LOCAL_VARIABLES))
                 .loops(config.getBoolean(Keys.PROCESSING_COMPUTED_ATTRIBUTES_LOOPS))