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<td style="vertical-align: top;; padding: 0; border-collapse: collapse; padding-right: 5px; font-size: 20px; line-height: 30px; mso-line-height-rule: exactly" class="page-title-pattern-header-container"><span class="page-title-pattern-header" style="font-family: Arial, sans-serif; padding: 0; font-size: 20px; line-height: 30px; mso-text-raise: 2px; mso-line-height-rule: exactly; vertical-align: middle"> <a href="https://shibboleth.atlassian.net/browse/IDP-1793?atlOrigin=eyJpIjoiODRhMmRlMWVkOTM4NDUyZmJiMzA3MzZjNmFkNDA1ZWMiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none">Re: Use Suppliers for HttpRequest/Response</a> </span></td>
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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0; border-collapse: collapse; padding: 0 0 10px"><p style="margin: 10px 0 0; margin-top: 0">Originally I was thinking the end-game here was to have the beans we defined stop implementing HttpServletRequest/Response directly so they’d be typed as Supplier only. The problem is the scripts, because then everybody would have to change their scripts to invoke the supplier indirection method, which I don’t think we want.</p><p style="margin: 10px 0 0">So the fallback was just to change all our typed injection points to use Supplier<> so that directly injecting the interface would fail, but we would make our ThreadLocal proxies implement both the real interface and Supplier<> (I tested that, it appears to be fine), so nothing really changes, except any inadvertent injection of something that’s not Supplier into our typed beans fails.</p><p style="margin: 10px 0 0">I guess a bit more of a hack, but one that would let us stop exporting the real interface from the ThreadLocal beans, would be to actually check for the Supplier interface in our custom object injection points, and perform the indirection to get() when we inject the custom object into the script. That might be a defensible workaround, given that we get compile-time enforcement of detecting this anti-pattern.</p></td>
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