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From Geertjan Wielenga <geertjan.wiele...@googlemail.com.INVALID>
Subject Re: Multi Release JAR files
Date Tue, 02 Oct 2018 11:21:34 GMT
Hi Emma,

Can you put your application on GitHub so others can take a look?

Gj


On Tue, Oct 2, 2018 at 1:16 PM Emma Atkinson <emma.atkinson2@gmail.com>
wrote:

> I don't know if this might add to the discussion.  I have tried build a
> simple Java application comprising 2 source files (Main.java and
> module-info.java) and have it call the default logger for Log4j2 V2.11.1 to
> output a single error message.  Nothing more.  I put the
> log4j-api-2.11.1.jar on the Modulepath as shown by Project Properties >
> Library > Compile tab.
>
> Log4j2 V2.11.1 is a Multi-release JAR (MR-JAR).  The module-info.class
> file is in log4j-api-2.11.1.jar under the folder META-INF/versions/9, which
> seems to match what the CachingFileManager expects at line 389.  I am not
> sure if I am looking at all the right places.
>
> The Netbeans editor can see the module log4j.api because it appears in the
> drop-down menu of completion suggestions and does not have wiggly red line
> under it.  My simple test program has a module-info.java file that requires
> log4j.api and nothing else.  This bit definitely works as I would expect.
>
> The RMB Clean & Build function eventually generates an error pointing to
> the line *requires log4j.api* in my module-info.java.  It generates this
> error even if I try to compile the module-info.java file on its own.  It
> seems to me that the ant build script cannot find module but the Netbeans
> editor can.  Unfortunately, I do not understand ant scripts enough to dig
> any deeper.
>
> I have tried building this program under JDK-9, JDK-10 and JDK-11.  My
> Netbeans runs on JDK-10.  I am learning how to migrate to modules by trial
> and error.  I may have made an error, but if I have, I don't know where.
>
> I hope this is helpful.
> Emma
>
> On Mon, 1 Oct 2018 at 14:03, Geertjan Wielenga
> <geertjan.wielenga@googlemail.com.invalid> wrote:
>
>> Apache NetBeans has support for reading multi-release JARs. They can
>> appear on the classpath (modulepath) and the correct types are used, though
>> note there is (currently) no support for creating them.
>>
>> Below is where the reading of multi-release JARs is implemented:
>>
>>
>> https://github.com/apache/incubator-netbeans/blob/master/java/java.source.base/src/org/netbeans/modules/java/source/parsing/CachingFileManager.java
>>
>> Gj
>>
>>
>>
>> On Sun, Sep 30, 2018 at 10:44 AM Patrik Karlström <patrik@trixon.se>
>> wrote:
>>
>>> Yes, that's where I got it from. :) Attended Nicolai's talk at jdays
>>> this week and later found the netbeans related info above that got me
>>> thinking of what I just could not find in the IDE.
>>> I'll poke around in my pom then, thanks.
>>>
>>>
>>> Den sön 30 sep. 2018 kl 10:08 skrev Geertjan Wielenga
>>> <geertjan.wielenga@googlemail.com.invalid>:
>>>
>>>> There's nothing in there specifically about NetBeans, but about Maven
>>>> -- I don't believe there's anything special done in this area in NetBeans
>>>> itself, but that the support for this feature can be used via Maven.
>>>>
>>>> Gj
>>>>
>>>> On Sun, Sep 30, 2018 at 9:56 AM Geertjan Wielenga <
>>>> geertjan.wielenga@googlemail.com> wrote:
>>>>
>>>>> This should help:
>>>>>
>>>>>
>>>>> https://blog.codefx.org/tools/multi-release-jars-multiple-java-versions/
>>>>>
>>>>> Gj
>>>>>
>>>>> On Sat, Sep 29, 2018 at 6:26 PM Patrik Karlström <patrik@trixon.se>
>>>>> wrote:
>>>>>
>>>>>> I just found out about Multi Release JAR files and began to look
>>>>>> into it on my Apache NetBeans 9 installation.
>>>>>>
>>>>>> At http://wiki.netbeans.org/NetBeans_9 one can read
>>>>>>
>>>>>>
>>>>>> NetBens 9 will be released from Apache Software Foundation as new
>>>>>> Apache project. NetBeans is being donated to ASG by Oracle. NetBeans
9 main
>>>>>> theme will be to support this upcoming Java SE 9 release.
>>>>>>
>>>>>>    - ...
>>>>>>    - *Multi Release JAR files to be handled properly by NB Java
>>>>>>    Support*
>>>>>>
>>>>>> Did support for Multi Release JAR files made it to ANB9 and if so,
>>>>>> how and where do find it/I set it up for my projects? Or was it a
goal for
>>>>>> NetBeans itself and I should handle it manually in my poms?
>>>>>>
>>>>>> /Patrik
>>>>>>
>>>>>

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