CVE-2022-21363: Improper Handling of Insufficient Permissions or Privileges in MySQL Connectors Java

The vulnerability stemmed from improper query classification for read-only connections. Key changes include:

1. ClientPreparedStatement's safety check moving from simple first character inspection to proper query type analysis
2. Enhanced query parsing logic in ParseInfo with new QueryReturnType enum
3. Replacement of string parsing utilities with more robust StringInspector These changes indicate the previous implementations had insufficient security checks that could be bypassed through query structure manipulation or comment exploitation.