# Description of Changes
**What was changed**
- Switched multiple nullable `Boolean` fields to primitive `boolean` in
`ApplicationProperties`:
- `Security.enableLogin`, `Security.csrfDisabled`
- `System.googlevisibility`, `System.showUpdateOnlyAdmin`,
`System.enableAlphaFunctionality`, `System.disableSanitize`,
`System.enableUrlToPDF`
- `Metrics.enabled`
- Updated all consumers to use Lombok’s `is*` accessors instead of
`get*`:
- `AppConfig`, `PostHogService`, `CustomHtmlSanitizer`,
`EndpointConfiguration`, `InitialSetup`, `OpenApiConfig`,
`ConvertWebsiteToPDF`, `HomeWebController`, `MetricsController`,
proprietary `SecurityConfiguration`, `AccountWebController`
- Tests adjusted to mock `isDisableSanitize()` instead of
`getDisableSanitize()`
- Logic simplifications:
- Removed redundant null-handling/ternaries now that primitives have
defaults (e.g., `enableAlphaFunctionality` bean)
- Replaced `Boolean.TRUE.equals(...)` with direct primitive checks
- Used constant-first `equals` for NPE safety in string comparisons
**Why the change was made**
- Primitive booleans eliminate ambiguity, cut down on
`NullPointerException` risks, and simplify conditions
- Aligns with Java/Lombok conventions (`isX()` for `boolean`) for
clearer, more consistent APIs
- Spring provides sane defaults for missing booleans (`false`), reducing
boilerplate and cognitive load
---
## Checklist
### General
- [x] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [x] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md)
(if applicable)
- [x] I have performed a self-review of my own code
- [x] My changes generate no new warnings
### Documentation
- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)
### UI Changes (if applicable)
- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)
### Testing (if applicable)
- [ ] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md#6-testing)
for more details.
