Hi Norman,

It may be doable by adding a delegation mode to public TrustManagerFactory:
   TrustManagerFactory.init(X509TrustManager proxy)

However, the X509ExtendedTrustManager should be recommended for now since its introducing in JDK 7.

Do you know how many users are still using the X509TrustManager implementation?

Thanks,
Xuelei

On 9/11/2018 3:32 AM, Norman Maurer wrote:
Hi all,

Would it be possible to consider exposing 
SSLContextImpl#AbstractTrustManagerWrapper somehow so it would be possible to 
reuse it when a custom SSLEngine / SSLContextSpi is provided ?

I am asking because it provides really nice extra functionality by wrapping for 
X509TrustManager implementation and do extra hostname checks etc. At the moment 
we can not make use of this extra functionality in netty with our custom 
SSLEngine implementation as there is no way to access this. Which means 
depending on if the user use our implementation or the default implementation 
the behaviour if quite different when using a X509TrustManager in the sense 
that when using the default implementation a lot of extra checks are done.

As the extra checks done in AbstractTrustManagerWrapper is not really depending 
on the underlying SSLContextSpi implementation (at least as far as I was able 
to understand it so far) it would be nice to be able to make use of it.

Bye
Norman

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