[slf4j-user] Manifest of jcl-over-slf4j 1.7.35: Invalid under OSGi

[Daniel Krügler]

Am 07.02.2022 um 18:59 schrieb Ceki Gülcü:
> Hi Daniel,
>
> Which slf4j version are you referring to? Which jar file contains the
> invalid version identifier?

Sorry, the information was only part of the title: I'm referring to the
most recent version 1.7.35.

See

https://repo1.maven.org/maven2/org/slf4j/jcl-over-slf4j/1.7.35/jcl-over-slf4j-1.7.35.jar

for example.

Thanks,

- Daniel
>
> On 2/7/2022 6:43 PM, Daniel Krügler wrote:
>> Hi,
>>
>> I have not found a Jira issue for the following problem yet (I apologize
>> if I overlooked something):
>>
>> We are using in our OSGi-based projects the most recent slf4-api plus
>> some additional dependencies around this release, in particular the
>> artifact
>>
>> <dependency>
>>      <groupId>org.slf4j</groupId>
>>      <artifactId>jcl-over-slf4j</artifactId>
>>      <version>${slf4j.version}</version>
>> </dependency>
>>
>> Using this bundle in our OSGi container leads to start and build
>> problems of the form
>>
>> java.lang.IllegalArgumentException: invalid version "${log4j.version}":
>> non-numeric "${log4j"
>>
>> Looking at the Manifest.MF of that said artifact explains the reason,
>> because the Export-Package section has the following contents:
>>
>> Export-Package: org.apache.log4j;version=${log4j.version},org.apache.l
>> og4j.helpers;version=${log4j.version},org.apache.log4j.spi;version=${
>> log4j.version},org.apache.log4j.xml;version=${log4j.version}
>> Import-Package: org.slf4j;version=1.6.0,org.slf4j.helpers;version=1.6.
>> 0,org.slf4j.spi;version=1.6.0
>>
>> It seems that during the build-process of the bundle the property
>> ${log4j.version} is not properly defined, leading to these unexpanded
>> entries.
>> Due to this problem, this artifact version is not useable for us. It
>> would be great, if this could be fixed for the next version.
>>
>> Thanks,
>>
>> - Daniel
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