For me, it works, I can use the module-path, together with this in
module-info:
module org.mycompany {
requires org.apache.logging.log4j;
}
And this in the Java source file:
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
public class MyApp {
public static final Logger LOGGER = LogManager.getLogger();
public static void main(String[] args) {
LOGGER.error("\n *** Log4j2 error message\n");
}
}
With the JAR on the module-path.
Thanks,
Gj
On Wed, Oct 31, 2018 at 9:51 AM Geertjan Wielenga <
geertjan.wiele...@googlemail.com> wrote:
> Hi Emma,
>
> Please confirm that your scenario works now in 10vc2:
>
> https://cwiki.apache.org/confluence/display/NETBEANS/10vc2
>
> Gj
>
> On Thu, Oct 4, 2018 at 11:56 AM Emma Atkinson <emma.atkins...@gmail.com>
> wrote:
>
>> Hey guys,
>> What a lovely surprise! I was just about to begin working out the command
>> line options.
>>
>> I'll take a look at the pull request to see if I can learn something.
>>
>> Thank you (Denk u wel)
>> Emma
>>
>> On 08:11, Thu, 4 Oct 2018 Geertjan Wielenga,
>> <geertjan.wiele...@googlemail.com.invalid> wrote:
>>
>>> https://github.com/apache/incubator-netbeans/pull/941
>>>
>>> We've identified the problem and done work on fixing it.
>>>
>>> Gj
>>>
>>> On Wed, Oct 3, 2018 at 1:55 PM Emma Atkinson <emma.atkins...@gmail.com>
>>> wrote:
>>>
>>>> I will try without using Netbeans but I do not have time to work on
>>>> this until tomorrow.
>>>> Thank you for devoting your time to helping me solve this.
>>>>
>>>> Emma
>>>>
>>>>
>>>> On Wed, 3 Oct 2018 at 12:29, Geertjan Wielenga <
>>>> geertjan.wiele...@googlemail.com> wrote:
>>>>
>>>>> Well, I'd suggest to first get it to work without any tooling at all.
>>>>> I.e., forget NetBeans for the moment and use the command line to set up a
>>>>> simple Java 9 multi-release app that makes use of Log4J. Possibly the
>>>>> problem is with Log4J and that's what you can find out by creating such an
>>>>> application and for help you could join the Log4J mailing list. I.e., if
>>>>> something doesn't work outside NetBeans it won't work within NetBeans
>>>>> either.
>>>>>
>>>>> Gj
>>>>>
>>>>>
>>>>> On Wed, Oct 3, 2018 at 1:13 PM Emma Atkinson <emma.atkins...@gmail.com>
>>>>> wrote:
>>>>>
>>>>>> Screenshot.png shows how I have set up Netbeans. I think you can see
>>>>>> everything.
>>>>>>
>>>>>> I normally use the *import* org.apache.logging.log4j.Logger and
>>>>>> *import* org.apache.logging.log4j.LogManager. The Log4j2
>>>>>> module-info.class file exports *org.apache.logging.log4j*.
>>>>>>
>>>>>> I have committed a version of the test case with the word logging
>>>>>> deleted. And then returned it to what I think is correct in the
>>>>>> subsequent
>>>>>> commit.
>>>>>> I have tried it every way, with and without the classpath entries.
>>>>>> BTW adding a jar to both the modulepath and classpath has been a bit hit
>>>>>> and miss (ignoring adding log4j-api.jar if it is already on the
>>>>>> modulepath)
>>>>>> so I used a Library entry for the module path and explicitly added the
>>>>>> jars
>>>>>> to the classpath.
>>>>>>
>>>>>> Adding the classpath entries with
>>>>>> *import* org.apache.logging.log4j.Logger
>>>>>> *import* org.apache.logging.log4j.LogManager
>>>>>>
>>>>>> means the editor finds the classes Logger and LogManager as you would
>>>>>> expect.
>>>>>> The Compile File error message is that it cannot find the module
>>>>>> log4j.api.
>>>>>> https://github.com/cosmiczoo/Log4j2TestCase latest commit is as
>>>>>> close as I can get.
>>>>>>
>>>>>>
>>>>>> On Wed, 3 Oct 2018 at 11:15, Geertjan Wielenga
>>>>>> <geertjan.wiele...@googlemail.com.invalid> wrote:
>>>>>>
>>>>>>> I also see this on
>>>>>>> https://logging.apache.org/log4j/2.0/download.html:
>>>>>>>
>>>>>>> To use Log4j 2 in your application make sure that both the API and
>>>>>>> Core jars are in the application’s classpath. Add the dependencies
>>>>>>> listed
>>>>>>> below to your classpath.
>>>>>>>
>>>>>>>
>>>>>>> 1. log4j-api-2.11.1.jar
>>>>>>> 2. log4j-core-2.11.1.jar
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> In short, we need instructions for how exactly to set up the project
>>>>>>> to match the environment that you have.
>>>>>>>
>>>>>>> Gj
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On Wed, Oct 3, 2018 at 12:11 PM Geertjan Wielenga <
>>>>>>> geertjan.wiele...@googlemail.com> wrote:
>>>>>>>
>>>>>>>> Shouldn't the import statements be this:
>>>>>>>>
>>>>>>>> import org.apache.log4j.LogManager;
>>>>>>>> import org.apache.log4j.Logger;
>>>>>>>>
>>>>>>>> ...and not this:
>>>>>>>>
>>>>>>>> import org.apache.logging.log4j.LogManager;
>>>>>>>> import org.apache.logging.log4j.Logger;
>>>>>>>>
>>>>>>>> ...if you're using log4j-1.2-api-2.11.1.jar?
>>>>>>>>
>>>>>>>> Gj
>>>>>>>>
>>>>>>>>
>>>>>>>> On Wed, Oct 3, 2018 at 11:56 AM Emma Atkinson <
>>>>>>>> emma.atkins...@gmail.com> wrote:
>>>>>>>>
>>>>>>>>> I cannot find a way to make this work, I hope you can help. I
>>>>>>>>> should be happy to be pointed to an existing answer
>>>>>>>>>
>>>>>>>>> *The Problem*
>>>>>>>>> I have a very simple Java application demonstrating the problem I
>>>>>>>>> am having with using the latest Log4j2 V2.11.1 as a module
>>>>>>>>> (log4j.api) and
>>>>>>>>> building it in Netbeans. The example compiles, builds and runs when
>>>>>>>>> I use
>>>>>>>>> the classpath, but cannot compile the module-info.java file when I
>>>>>>>>> use the
>>>>>>>>> modulepath. I have uploaded the code and Netbeans files at the
>>>>>>>>> following
>>>>>>>>> link:
>>>>>>>>>
>>>>>>>>> https://github.com/cosmiczoo/Log4j2TestCase
>>>>>>>>>
>>>>>>>>> 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 correct.
>>>>>>>>>
>>>>>>>>> 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 works as I
>>>>>>>>> would
>>>>>>>>> expect.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> I have located an unanswered question on StackOverflow asking a
>>>>>>>>> similar question
>>>>>>>>> https://stackoverflow.com/questions/50568139/netbeans-java-9-modules-log4j-2-11-module-not-found
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> *To Reproduce My Test *
>>>>>>>>>
>>>>>>>>> I *Clean* the project. It completes successfully.
>>>>>>>>> I then use a RMB option to *Compile File* the module-info.java
>>>>>>>>> file.
>>>>>>>>> This generates an error pointing to the line *requires log4j.api*
>>>>>>>>> in my module-info.java.
>>>>>>>>>
>>>>>>>>> <path-to>/Log4j2TestCase/src/module-info.java:7: error: module not
>>>>>>>>> found: log4j.api
>>>>>>>>> requires log4j.api;
>>>>>>>>> 1 error
>>>>>>>>> ZipFileIndex clearCache failed
>>>>>>>>> <path-to>/Log4j2TestCase/nbproject/build-impl.xml:1131: The
>>>>>>>>> following error occurred while executing this line:
>>>>>>>>> <path-to>/Log4j2TestCase/nbproject/build-impl.xml:358: Compile
>>>>>>>>> failed; see the compiler error output for details.
>>>>>>>>> at org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:1425)
>>>>>>>>> at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:1133)
>>>>>>>>> at
>>>>>>>>> org.netbeans.modules.java.source.ant.JavacTask.execute(JavacTask.java:120)
>>>>>>>>> at
>>>>>>>>> org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)
>>>>>>>>>
>>>>>>>>> and so on. Please let me know if you want more.
>>>>>>>>>
>>>>>>>>> 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, error and reading. I may have made an error, but
>>>>>>>>> if I
>>>>>>>>> have, I don't know where.
>>>>>>>>>
>>>>>>>>> Thanks in anticipation
>>>>>>>>>
>>>>>>>>> Emma
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
