[slf4j-dev] Apache logging log4j over slf4j

[Damien]

Hi,

I am using jetty 9 to launch my app, and it do reflection on libs to find
extensions, providers, and so on...

When I launch my app, I have this error :
java.lang.RuntimeException: Error scanning entry
META-INF/versions/9/org/apache/logging/log4j/util/ProcessIdUtil.class from
jar
file:/home/damien/projets/myapp/server/build/serverBaseDir_jetty9/webapps-exploded/localsite-api-server/webapp/WEB-INF/lib/log4j-api-2.9.1.jar
        at
org.eclipse.jetty.annotations.AnnotationParser.parseJar(AnnotationParser.java:913)
~[jetty-annotations-9.2.22.v20170606.jar:9.2.22.v20170606]
        ... 6 common frames omitted
Caused by: java.lang.IllegalArgumentException: null
        at org.objectweb.asm.ClassReader.<init>(Unknown Source)
~[asm-5.0.3.jar:5.0.3]
        at org.objectweb.asm.ClassReader.<init>(Unknown Source)
~[asm-5.0.3.jar:5.0.3]
        at org.objectweb.asm.ClassReader.<init>(Unknown Source)
~[asm-5.0.3.jar:5.0.3]
        at
org.eclipse.jetty.annotations.AnnotationParser.scanClass(AnnotationParser.java:973)
~[jetty-annotations-9.2.22.v20170606.jar:9.2.22.v20170606]
        at
org.eclipse.jetty.annotations.AnnotationParser.parseJarEntry(AnnotationParser.java:956)
~[jetty-annotations-9.2.22.v20170606.jar:9.2.22.v20170606]
        at
org.eclipse.jetty.annotations.AnnotationParser.parseJar(AnnotationParser.java:909)
~[jetty-annotations-9.2.22.v20170606.jar:9.2.22.v20170606]
        ... 6 common frames omitted

By replacing log4j 2 with a slf4j bridge, this would fix my problem. Is
there any other solution to fix my problem ?

Thanks.

2018-01-10 12:21 GMT+11:00 Remko Popma <remko.popma at gmail.com>:

> Hi Damien,
>
> You can’t use the log4j-over-slf4j adapter (it only works with Log4j 1.2).
>
> Log4j2 includes an slf4j adapter: the log4j-slf4j-impl module. See
> https://logging.apache.org/log4j/2.x/log4j-to-slf4j/index.html
>
> Remko
>
> (Shameless plug) Every java main() method deserves http://picocli.info
>
>
>
> On Wed, Jan 10, 2018 at 10:13 Damien <maitredede at gmail.com> wrote:
>
>> Hi :),
>>
>> I am using a lib that uses log4j 2 (apache.logging.log4j.*).
>>
>> My build script (graddle) has easily replaced log4j 1 libs with
>> log4j-over-slf4j, but does not handle log4j 2.
>>
>> Is there a version for log4j 2 ? Or is someone working on it ?
>>
>> Thanks :)
>>
>> Damien
>> _______________________________________________
>> slf4j-dev mailing list
>> slf4j-dev at qos.ch
>> http://mailman.qos.ch/mailman/listinfo/slf4j-dev
>
>
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