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При запуске команды mvn clean compile spotbugs:check появляется ошибка RV_RETURN_VALUE_IGNORED_NO_SIDE_EFFECT

Описание ошибки

При воспроизведение команды Maven: mvn clean compile spotbugs:check возникает ошибка: Return value of BonusService.calculate(long, boolean) ignored, but method has no side effect, которая указывает, что вызываемый метод не имеет побочных эффектов и его результат не используется.

Шаги для воспроизведения

  1. Запустить проект как Maven в IDEA bonus-service.zip
  2. Запустить следующую команду Maven: mvn clean compile spotbugs:check

Ожидаемый результат

Плагин запустился, ошибок нет.

Фактический результат

Плагин запустился, обнаружена ошибка: Return value of BonusService.calculate(long, boolean) ignored, but method has no side effect [Main] At Main.java:[line 8] RV_RETURN_VALUE_IGNORED_NO_SIDE_EFFECT

Скриншоты

Безымянный

Окружение

Операционная система: Windows 10
IDE: IntelliJ IDEA 2021.3.2 (Community Edition)
Java: OpenJDK 11

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