19 files declare their use of LoggerTrait in Search API 8

BackendPluginBase.php in src/Backend/BackendPluginBase.php

Basic.php in src/Plugin/search_api/tracker/Basic.php

ContentAccess.php in src/Plugin/search_api/processor/ContentAccess.php

ContentEntity.php in src/Plugin/search_api/datasource/ContentEntity.php

Field.php in src/Item/Field.php

Highlight.php in src/Plugin/search_api/processor/Highlight.php

Index.php in src/Entity/Index.php

Item.php in src/Item/Item.php

PostRequestIndexing.php in src/Utility/PostRequestIndexing.php

RenderedItem.php in src/Plugin/search_api/processor/RenderedItem.php

RoleAccess.php in src/Plugin/search_api/processor/RoleAccess.php

SearchApiDataRow.php in src/Plugin/views/row/SearchApiDataRow.php

SearchApiEntityOperations.php in src/Plugin/views/field/SearchApiEntityOperations.php

SearchApiFieldTrait.php in src/Plugin/views/field/SearchApiFieldTrait.php

SearchApiMoreLikeThis.php in src/Plugin/views/argument/SearchApiMoreLikeThis.php

SearchApiQuery.php in src/Plugin/views/query/SearchApiQuery.php

SearchApiRow.php in src/Plugin/views/row/SearchApiRow.php

Server.php in src/Entity/Server.php

ServerTaskManager.php in src/Task/ServerTaskManager.php