if (query instanceof final BooleanQuery booleanQuery) {
            final List<BooleanClause> clauses = booleanQuery.clauses();
            final List<TermQuery> queryList = new ArrayList<>();
            for (final BooleanClause clause : clauses) {
                final Query q = clause.query();
                if (q instanceof BooleanQuery) {

        TermQuery termQuery3 = new TermQuery(new Term("field3", "value3"));

        boolQueryBuilder.add(termQuery1, BooleanClause.Occur.MUST);
        boolQueryBuilder.add(termQuery2, BooleanClause.Occur.SHOULD);
        boolQueryBuilder.add(termQuery3, BooleanClause.Occur.MUST_NOT);
        BooleanQuery booleanQuery = boolQueryBuilder.build();

        QueryContext context = new QueryContext("test", false);

        boolBuilder.add(new TermQuery(new Term("title", "fess")), BooleanClause.Occur.MUST);
        boolBuilder.add(new PrefixQuery(new Term("content", "search")), BooleanClause.Occur.SHOULD);
        boolBuilder.add(new WildcardQuery(new Term("url", "*.html")), BooleanClause.Occur.MUST_NOT);
        BooleanQuery boolQuery = boolBuilder.build();

        innerBuilder.add(new TermQuery(new Term("content", "inner")), BooleanClause.Occur.SHOULD);

        BooleanQuery.Builder outerBuilder = new BooleanQuery.Builder();
        outerBuilder.add(innerBuilder.build(), BooleanClause.Occur.SHOULD);
        outerBuilder.add(new TermQuery(new Term("content", "outer")), BooleanClause.Occur.SHOULD);
        BooleanQuery nestedQuery = outerBuilder.build();