fix: handle transaction sql with comments at the beginning

Author: karenc-bq

wrapper/src/main/java/software/amazon/jdbc/plugin/DefaultConnectionPlugin.java

@@ -158,7 +158,7 @@ public void notifyNodeListChanged(Map<String, EnumSet<NodeChangeOptions>> change
 
   public boolean doesOpenTransaction(String statement) {
     statement = statement.toUpperCase();
-    statement = statement.replaceAll("START(?:\\s*/\\*(.*?)\\*/\\s*)TRANSACTION", "START TRANSACTION");
+    statement = statement.replaceAll("\\s*/\\*(.*?)\\*/\\s*", " ").trim();
     return statement.startsWith("BEGIN") || statement.startsWith("START TRANSACTION");
   }
 

wrapper/src/test/java/software/amazon/jdbc/plugin/DefaultConnectionPluginTest.java

@@ -84,6 +84,9 @@ private static Stream<Arguments> openTransactionQueries() {
         Arguments.of("START/* COMMENT */TRANSACTION;", true),
         Arguments.of("START      /* COMMENT */    TRANSACTION;", true),
         Arguments.of("START   /*COMMENT*/TRANSACTION;", true),
+        Arguments.of("/*COMMENT*/START   /*COMMENT*/TRANSACTION;", true),
+        Arguments.of(" /*COMMENT*/ START   /*COMMENT*/TRANSACTION;", true),
+        Arguments.of(" /*COMMENT*/ begin", true),
         Arguments.of("commit", false)
     );
   }