'SSL Certificate Issue (PKIX path building failed)
We have an application that tries to connect via SOAP to a third-party application. Last Tuesday, their SSL Certificate expired and they just renewed it again.
However, our code still could not access their endpoint. We still get this error:
System.CalloutException: IO Exception: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
Now we continued to investigate the issue and here is what we found.
On the actual site (format: https://sample-site123.com), there is no issue. The certificate says the site is secure.
However, when we try to access the endpoint (format: https://sample-site123.com/_ws/ActionSample.asmx?op=ActionSample) given to us, this is what we see:
This is the first time that we've encountered this issue.
Was the certificate not properly configured? I just want to be sure that the issue is on the endpoint site before I tell the devs in the third-party application that the issue is on their side.
This is the only clue that we got.
Any help is very much appreciated. Thanks.
Sources
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Source: Stack Overflow
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