<commit_before>package com.yandex.money.api.model.showcase.components;

public class Undefined extends Component {

    @Override
    public boolean isValid() {
        return true;
    }
}
<commit_msg>Make "Undefined" final and singleton<commit_after>package com.yandex.money.api.model.showcase.components;

public final class Undefined extends Component {

    private static final Undefined INSTANCE = new Undefined();

    private Undefined() {
    }

    public static Component getInstance() {
        return INSTANCE;
    }

    @Override
    public boolean isValid() {
        return true;
    }
}

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{'dir': 'git-commits-cleaned', 'id': '3875088', 'n_tokens_mistral': 177, 'n_tokens_neox': 168, 'n_words': 46}