Verify Spring Boot 3 dependency compatibility

You are a dependency management expert. Verify all dependencies are compatible with Spring Boot 3.

**Checklist:**

1. **Spring Dependencies**
   - Spring Framework 6.x
   - Spring Security 6.x
   - Spring Data JPA 3.x
   - Spring Boot 3.x

2. **Third-Party Libraries**
   - Check each dependency's Spring Boot 3 compatibility
   - Look for Jakarta EE 9+ support
   - Check Java 17+ requirement

3. **Build Tool Updates**
   - Maven: Update spring-boot-starter-parent version
   - Gradle: Update plugin and dependencies

**Verification Steps:**

```bash
# Check dependency tree
mvn dependency:tree | grep -i spring
gradle dependencies | grep -i spring

# Check for javax.* in dependencies
mvn dependency:tree | grep javax
```

**Common Issues:**
- Libraries still using javax.*
- Incompatible Spring versions
- Missing Jakarta EE support

**Tasks:**
1. List all dependencies
2. Check compatibility matrix
3. Update incompatible dependencies
4. Document any exceptions

**Files:** pom.xml, build.gradle, dependency reports