On 7/12/2018 5:06 PM, Bradford Wetmore wrote:
The code itself looks good, but I didn't see a regression tests.  Is this what JDK-8207174 will be for?

No, I did not have a regression test in this update. I asked the bug reporter helped for the testing, and passed. However, we definitely need a regression test as it is likely to happen again in the future. JDK-8207174 is used for the following up test development.

Thanks,
Xuelei

On 7/11/2018 11:53 PM, Alan Bateman wrote:
On 12/07/2018 05:47, Xuelei Fan wrote:

It's an interesting user case of the TrustManagerFactory and KeyManagerFactory.  The KeyManager or TrustManager implementation may be not implemented in the same provider as SSLSocket/SSLEngine.

See also http://mail.openjdk.java.net/pipermail/security-dev/2018-July/017536.html.
Xuelei - is there follow-up work to develop some tests that use custom KeyManager or TrustManager implementations that are in different providers to the SSLEngine. I realize not many will do that but it seems easy to break these type of scenarios if we don't have tests.

If I understand your question correctly, custom KM/TM are quite common. I routinely write custom impls to wrap functionality around the behavior of the stock TM/KM.  e.g. outputting debug information.

class MyTM extends X509TrustManager {
     private final X509TrustManager tm;
     MyTM(X509TrustManager tm) {
         theTM = tm;
     }
     checkTrusted(args)
         System.out.println(args);
         tm.checkTrusts(args)
     }
}

Brad

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