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<div>It is nest to post the verbatim error message and maybe also the URL to reproduce. But if you notice a sudden change in behavior and the cert is not expired, then it’s likely a server-side change. Did you try to connect with browser and OpenSSl cli?</div>
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<div>You can debug JSSE connections but the exception message should be a good start:
<a href="https://docs.oracle.com/javase/8/docs/technotes/guides/security/jsse/ReadDebug.html">
https://docs.oracle.com/javase/8/docs/technotes/guides/security/jsse/ReadDebug.html</a></div>
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<div>Is the ca in the truststores you are using?</div>
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<div dir="ltr">Gruss</div>
<div dir="ltr">Bernd</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif"><b>Von:</b> security-dev <security-dev-retn@openjdk.java.net> im Auftrag von Kain, Michael T <Michael.Kain@unisys.com><br>
<b>Gesendet:</b> Dienstag, April 20, 2021 6:05 PM<br>
<b>An:</b> security-dev@openjdk.java.net<br>
<b>Cc:</b> Kain, Michael T<br>
<b>Betreff:</b> How do I report a potential bug in OpenJDK?
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<p class="MsoNormal" data-ogsc="" style=""><span style="font-size: 11pt; font-family: Arial, sans-serif; color: windowtext;">We’ve been using OpenJDK in a product and since March 17, OpenJDK seems to be reporting a “Certificate Unknown” error on a previously
working certificate. Versions are 8.0.212.03, 8.0.282.8, 11.0.5.10, 11.0.10.9.</span></p>
<p class="MsoNormal" data-ogsc="" style=""><span style="font-size: 11pt; font-family: Arial, sans-serif; color: windowtext;"> </span></p>
<p class="MsoNormal" data-ogsc="" style=""><span style="font-size: 11pt; font-family: Arial, sans-serif; color: windowtext;">Given that I’m a newbie – debug? Diagnostics? Changelog to look at possible patches which changed function?</span></p>
<p class="MsoNormal" data-ogsc="" style=""><span style="font-size: 11pt; font-family: Arial, sans-serif; color: windowtext;"> </span></p>
<p class="MsoNormal" data-ogsc="" style=""><span style="font-size: 11pt; font-family: Arial, sans-serif; color: windowtext;">Mike</span></p>
<p class="MsoNormal" data-ogsc="" style=""><span style="font-size: 11pt; font-family: Arial, sans-serif; color: windowtext;"> </span></p>
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<p class="MsoNormal" style="margin-bottom: 3pt;" data-ogsc=""><b><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(68, 68, 68);">Mike Kain</span></b><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(68, 68, 68);">
| Distinguished Engineer and Security Architect, ClearPath MCP systems | ClearPath Forward</span></p>
<p class="MsoNormal" style="margin-bottom: 3pt;" data-ogsc=""><span style="font-size: 9pt; font-family: Calibri, sans-serif; color: rgb(68, 68, 68);">Unisys | (610)727-5442 |
<a href="mailto:Michael.Kain@unisys.com" data-ogsc="" style=""><span style="color: blue;">Michael.Kain@unisys.com</span></a>
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