Throw if someone try to instantiate the static class.

Co-authored-by: Carlos Delgado <[email protected]>

x-pack/plugin/kql/src/main/java/org/elasticsearch/xpack/kql/parser/ParserUtils.java

@@ -29,7 +29,7 @@ public final class ParserUtils {
     private static final char QUOTE_CHAR = '"';
 
     private ParserUtils() {
-
+     throw new UnsupportedOperationException("No need to instantiate this class");
     }
 
     /**