#AddExportsInManifest
Mandy Chung
mandy.chung at oracle.com
Thu May 11 20:51:00 UTC 2017
These two attributes are defined to ease migration so that executable JARs can run with java -jar command, as is today, to avoid adding command-line options to break into encapsulation.
Mandy
[1] http://openjdk.java.net/projects/jigsaw/spec/issues/#AddExportsInManifest
> On May 11, 2017, at 1:25 PM, Paul Bakker <paul.bakker.nl at gmail.com> wrote:
>
> I'm a little confused by "...deployments work if they are dependent on JDK internal APIs". What does internal JDK usage have to do with opening/exporting your own packages? I would think this solves the problem that some other code (e.g. a library) requires access to application code?
> Also, can you elaborate why this only applies to the unnamed module and can't do the same a the --add-exports/--add-opens flags?
>
> Note that I don't actually need these features, but I want to make sure I document correctly.
>
> Paul
>
>
>> On May 11, 2017, at 12:10 AM, Alan Bateman <Alan.Bateman at oracle.com> wrote:
>>
>> On 11/05/2017 07:51, Paul Bakker wrote:
>>
>>> Hi Alan,
>>>
>>> What is the reason only exports/opens to unnamed are possible?
>>> Also, are these implemented in the current jigsaw prototype? I'm having trouble getting it to work, but that might be entirely my own doing...
>>>
>> The attributes are defined for the main application JAR when run with `java -jar app.jar`. So there are defined to keep existing deployments work if they are dependent on JDK internal APIs.
>>
>> The attributes have been in JDK 9 for a long time and I'm not aware of any issues. If it looks like it's not your "own doing" then send an example and we'll figure it out.
>>
>> -Alan
>
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