🛡️ Sentinel: [CRITICAL] Fix JPQL injection in BillFeeController

[ManupaKDU]

🚨 Severity: CRITICAL
💡 Vulnerability: JPQL Injection vulnerability in BillFeeController.java (getSelectedItems) due to unsafe string concatenation using like '%" + getSelectText().toUpperCase() + "%'.
🎯 Impact: An attacker could potentially inject malicious JPQL/SQL syntax into the selectText search field, allowing them to manipulate the database query, bypass logic, or access unauthorized data.
🔧 Fix: Refactored the JPQL query to use parameterized inputs (:qry) and pass the selectText via a Map<String, Object>, ensuring the input is properly escaped and bound by the ORM. Also improved logic by using upper(c.name) in the query to guarantee case-insensitive matching.
✅ Verification: Ran full test suite via ./detect-maven.sh test which passed successfully. Verified that the getSelectedItems method executes parameterized queries correctly.

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PR created automatically by Jules for task 6495502925685113247 started by @manupawickramasinghe

[google-labs-jules]

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