AW: Differences between openJDK and oracleJDK

Fri Sep 30 20:04:18 UTC 2016

Hi

Sorry for the late reply.

> The original mail is about the method missing, not the class.

Exactly.

> That said, I also don't think there is any difference between OpenJDK and Oracle JDK here.
> 
> *Steffen*, how do you find the method is missing? The latest jdk9 is modularized so you cannot call internal method like before. Is
> that the reason? Can you show the compilation or runtime error?

The following works in openJDK 1.8.0.101:

AuthorityKeyIdentifierExtension akidext = ....;
byte[] kid = akidext.getEncodedKeyIdentifier();

But in oracleJDK 1.8.0.101 it leads to a compile time error, because that method does not exist.

> > There is no difference in the Oracle and OpenJDK JSSE implementation. They are the same.

Obviously, there is.

> That said, other distributions which
> derive from OpenJDK (e.g. IcedTea or Linux distros) may have differences, but that is outside my knowledge area.  If you build
> OpenJDK from the source, the binaries of JSSE in OpenJDK and OracleJDK will be the same.

I downloaded the source of openJDK from its source repositories and compiled it myself.
I also tested with https://github.com/ojdkbuild/ojdkbuild.

I downloaded oracleJDK from oracle itself.

So I don't think this is the issue.

Regards,
  Steffen