[libbluray-devel] libbluray on Windows 10 with JRE 9

[Marvin Scholz]

On 22 Dec 2017, at 9:28, Petri Hintukainen wrote:

> su, 2017-12-10 kello 16:15 +0100, Marvin Scholz kirjoitti:
>>
>> On 10 Dec 2017, at 13:58, Petri Hintukainen wrote:
>>
>>> su, 2017-12-03 kello 15:39 +0100, Marvin Scholz kirjoitti:
>>>> Just tried to use libbluray with VLC on a Windows 10 machine with
>>>> JRE
>>>> 9 and
>>>> realized it does not work, I guess that's expected?
>>>
>>> Not intentional but more or less expected :). Looks like it doesn't
>>> even compile with JDK 9 (9b181).
>>
>> Does it need to compile with JDK 9 to run with JRE 9?
>
> No, any JDK / compiler should be fine. Using JDK 9 to build distributed
> .jar file may be even a bad idea.
>
> Compiling against Java 9 runtime libraries (or what ever will be used
> at run time) is a quick way to test if some interfaces have been
> changed. Those will cause issues when classes are linked at runtime.
>
>> It seems it already fails at initializing the JVM, maybe API changed
>> for that?
>
> In Windows the location is read from registry. And for some reason they
> decided to change the registry keys:
>
> https://bugs.openjdk.java.net/browse/JDK-8187906
>
> Fixed in git (but not tested).
>
> In Linux loading JVM fails because of -Xbootclass/p option is not
> supported anymore. I'd expect this to happen also in Windows. This is
> kind of critical issue; it is used to "patch" Java RT libraries for
> backwards compatibility.

Yes, I guess exactly that is what happens when I try to use JRE9.
(Invalid arguments error when loading the JVM)

>
>>> I'll check if it is easy to fix.
>
> Compile time issues seem relatively easy to fix. But there are other
> issues too... before we can even test any Xlets.
>
> Looking at Java 9 migration guide I'd expect fixing all issues will
> take more than just couple of days...
>
>