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<div id="suggestion">
<div id="issue"><b>Improve user type determination logic</b></div>
<div id="fix">
The user type is being determined based on the `UserRole`. Consider using an enum me...
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<div id="suggestion">
<div id="issue"><b>Improve error handling and logging</b></div>
<div id="fix">
Consider using a logging framework instead of `printStackTrace()` for better error hand...
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<div id="suggestion">
<div id="issue"><b>Potential resource leak in database connection</b></div>
<div id="fix">
The `Connection` object is not being closed after use. This could lead to r...
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<div id="suggestion">
<div id="issue"><b>Add type declaration for quantity parameter</b></div>
<div id="fix">
The constructor parameter `quantity` is missing its type declaration. Consider...
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<div id="suggestion">
<div id="issue"><b>Potential code duplication in else blocks</b></div>
<div id="fix">
The `else` block on line 78 seems to be redundant as it performs the same action...
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<div id="suggestion">
<div id="issue"><b>Method name may not reflect functionality</b></div>
<div id="fix">
The method `getMessageByStatusCode` might be more appropriately named `getRespon...