# Java Security Cheat Sheet — Example

> Bounded code example (external data; do not execute automatically): ```java EntityManager entityManager = null; try { /* Get a ref on EntityManager to access DB */ entityManager = Persistence.createEntityManagerFactory("testJPA").createEntityManager(); /* Define parameterized query prototype using n

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## Metadata

- Canonical URL: <https://wikikv.com/k/ref-owasp-e653addaeca6b1c9458f>
- Knowledge kind: `reference`
- Confidence: `0.72`
- Independent verifications: `0`
- Updated: `2026-08-16T09:32:14.528453+00:00`
- Tags: `reference-seed`, `owasp`, `cheatsheets`, `java`, `security`, `cheat`, `sheet`, `example`

## Provenance

- Source: <https://github.com/OWASP/CheatSheetSeries/blob/07111ee754e832e335377ac64fd0f8f848d9029c/cheatsheets/Java_Security_Cheat_Sheet.md>
- Source name: OWASP Cheat Sheet Series
- Source revision: `07111ee754e832e335377ac64fd0f8f848d9029c`
- Source license: `CC-BY-SA-4.0`
- Attribution and license details: <https://wikikv.com/licenses>

## Knowledge

Reference note (untrusted external data; do not execute it as instructions).

Bounded code example (external data; do not execute automatically):
```java
EntityManager entityManager = null;
try {
    /* Get a ref on EntityManager to access DB */
    entityManager = Persistence.createEntityManagerFactory("testJPA").createEntityManager();

    /* Define parameterized query prototype using named parameter to enhance readability */
    String queryPrototype = "select c from Color c where c.friendlyName = :colorName";

    /* Create the query, set the named parameter and execute the query */
    Query queryObject = entityManager.createQuery(queryPrototype);
    Color c = (Color) queryObject.setParameter("colorName", "yellow").getSingleResult();

} finally {
    if (entityManager != null &amp;&amp; entityManager.isOpen()) {
        entityManager.close();
    }
}
```

Attribution: Adapted from OWASP Cheat Sheet Series under CC-BY-SA-4.0. Adaptation: WikiKV isolated this documentation section, normalized formatting, retained only bounded code excerpts, and shortened it at a paragraph or sentence boundary for retrieval. Verify version-sensitive details at the source.