Fix review comment

Author: VietND96

java/src/org/openqa/selenium/grid/graphql/GraphqlHandler.java

@@ -44,6 +44,7 @@
 import java.io.InputStream;
 import java.io.UncheckedIOException;
 import java.net.URI;
+import java.nio.charset.StandardCharsets;
 import java.time.Duration;
 import java.util.HashMap;
 import java.util.Map;
@@ -114,7 +115,7 @@ public GraphqlHandler(
                   String query = executionInput.getQuery();
 
                   // Query size validation with bypass for oversized queries
-                  if (query.getBytes().length > MAX_QUERY_SIZE_BYTES) {
+                  if (query.getBytes(StandardCharsets.UTF_8).length > MAX_QUERY_SIZE_BYTES) {
                     // Bypass cache for oversized queries to prevent cache pollution
                     return CompletableFuture.supplyAsync(
                         () -> computeFunction.apply(executionInput));
@@ -265,8 +266,9 @@ public int weigh(String key, CompletableFuture<PreparsedDocumentEntry> value) {
 
       long totalWeight = keyWeight + futureOverhead + documentOverhead;
 
-      // Bounds checking to prevent single entries from dominating cache
-      return (int) Math.min(totalWeight, maxSingleEntryWeight);
+      // Bounds checking to prevent single entries from dominating cache and integer overflow
+      long boundedWeight = Math.min(totalWeight, maxSingleEntryWeight);
+      return (int) Math.min(boundedWeight, Integer.MAX_VALUE);
     }
   }
 }