Language: Java
Label: safe
CWE: CWE-89 \u2014 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component.

Code:
    protected Object visit(BinaryLogicOperator filter, String type, Object extraData) {
        StringBuilder sql = (StringBuilder) extraData;
        List<Filter> children = filter.getChildren();
        checkArgument(children.size() > 0);
        sql.append('(');
        dialect.appendIfDebug(sql, "\n    ", "");
        for (Iterator<Filter> it = children.iterator(); it.hasNext(); ) {
            it.next().accept(this, sql);
            if (it.hasNext()) {
                dialect.appendIfDebug(sql, "    ", " ");
                sql.append(type);
                dialect.appendIfDebug(sql, "\n    ", " ");
            }
        }
        return sql.append(')');
    }