Fix for SavedModelBundle to load empty tags as these are present in some TF-hub models.

Author: Craigacp

tensorflow-core/tensorflow-core-api/src/main/java/org/tensorflow/SavedModelBundle.java

@@ -29,6 +29,7 @@
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Objects;
 import java.util.stream.Collectors;
 import org.bytedeco.javacpp.BytePointer;
 import org.bytedeco.javacpp.PointerScope;
@@ -432,7 +433,7 @@ private static SavedModelBundle load(
   }
 
   private static void validateTags(String[] tags) {
-    if (tags == null || Arrays.stream(tags).anyMatch(t -> t == null || t.isEmpty())) {
+    if (tags == null || Arrays.stream(tags).anyMatch(Objects::isNull)) {
       throw new IllegalArgumentException("Invalid tags: " + Arrays.toString(tags));
     }
   }