Hi Claes!

Thank you for looking into this.


On 18.08.2016 15:25, Claes Redestad wrote:
On 2016-08-16 19:20, Ivan Gerasimov wrote:
ObjectStreamClass:

I wonder if the entire getPackageName is replaceable with
Class.getPackageName()? If so, ditch the method completely and use
Class.getPackageName everywhere. This may complicate backporting to JDK
8 though.

Unfortunately, Class.getPackageName() cannot handle arrays, so I'll leave it as is.

There are a number of utility methods around that could be reused,
e.g., jdk.internal.reflect.Reflection.isSameClassPackage handles both arrays and primitive types and could replace both packageEquals and getPackageName in ObjectStreamClass (which already use j.i.r.Reflection for other things). Making isSameClassPackage in Reflection public should be non-controversial, I hope.


Yes, thanks for the pointer!
That's right, there are several similar methods in different packages.
I see that the third option is sun.invoke.util.VerifyAccess.isSamePackage / getPackageName, but it also has its nuances.

I guess that keeping ObjectStreamClass.getPackageName() separated would be the simplest approach: it minimizes the chances of regression and doesn't make it harder to do future modifications to Reflection.isSameClassPackage, if it is ever needed.

If there are no objections, I'd like to push the latest variant of the fix, which is at
http://cr.openjdk.java.net/~igerasim/8163517/01/webrev/

With kind regards,
Ivan

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