t() calls should be avoided in classes

FILE: ...bution/web/modules/contrib/domain_language/src/Form/DomainLanguageForm.php
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FOUND 0 ERRORS AND 8 WARNINGS AFFECTING 8 LINES
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52 | WARNING | t() calls should be avoided in classes, use
| | \Drupal\Core\StringTranslation\StringTranslationTrait and
| | $this->t() instead
68 | WARNING | t() calls should be avoided in classes, use
| | \Drupal\Core\StringTranslation\StringTranslationTrait and
| | $this->t() instead
70 | WARNING | t() calls should be avoided in classes, use
| | \Drupal\Core\StringTranslation\StringTranslationTrait and
| | $this->t() instead
83 | WARNING | \Drupal calls should be avoided in classes, use dependency
| | injection instead
88 | WARNING | t() calls should be avoided in classes, use
| | \Drupal\Core\StringTranslation\StringTranslationTrait and
| | $this->t() instead
89 | WARNING | t() calls should be avoided in classes, use
| | \Drupal\Core\StringTranslation\StringTranslationTrait and
| | $this->t() instead
102 | WARNING | t() calls should be avoided in classes, use
| | \Drupal\Core\StringTranslation\StringTranslationTrait and
| | $this->t() instead
105 | WARNING | t() calls should be avoided in classes, use
| | \Drupal\Core\StringTranslation\StringTranslationTrait and
| | $this->t() instead

FILE: .../modules/contrib/protected_file/tests/src/Functional/ProtectedFileTest.php
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FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
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125 | WARNING | t() calls should be avoided in classes, use
| | \Drupal\Core\StringTranslation\StringTranslationTrait and
| | $this->t() instead
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FILE: ...ules/contrib/protected_file/tests/src/Functional/ProtectedFileTestBase.php
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FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
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192 | WARNING | t() calls should be avoided in classes, use
| | \Drupal\Core\StringTranslation\StringTranslationTrait and
| | $this->t() instead