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Adding dependency to EclipseLink (ant+maven+Tycho) [message #1758002]

Wed, 22 March 2017 17:01

Pavel No

Messages: 47
Registered: May 2016

Member

I want to add slf4j-api dependency to org.eclipse.persistence.core. So I added to org.eclipse.persistence.core/META-INF/MANIFEST.MF to Require-Bundle setting:

Require-Bundle: (original), slf4j.api;bundle-version="1.7.21"

But I got

[java] Caused by: java.lang.RuntimeException: No solution found because the problem is unsatisfiable.: [Unable to satisfy dependency from org.eclipse.persistence.core 2.6.3.qualifier to bundle slf4j.api 1.7.21.; No solution found because the problem is unsatisfiable.] 
[java] at org.eclipse.tycho.p2.util.resolution.AbstractResolutionStrat‌egy.newResolutionExc‌eption(AbstractResol‌utionStrategy.java:9‌8)

Also I tried

Require-Bundle: (original), org.slf4j;bundle-version="1.7.21"

But result is the same.

Please, anyone, say how to add slf4j-api dependency to org.eclipse.persistence.core. It must be so simple task but It is a month I can't find a way how to do it. Please, eclipselink developers answer.

The question was asked on SO

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Re: Adding dependency to EclipseLink (ant+maven+Tycho) [message #1758041 is a reply to message #1758002]

Wed, 22 March 2017 22:38

Lukas Jungmann

Messages: 36
Registered: November 2013
Location: Prague, Czech Republic

Member

What problem are you trying to solve? If you just want to use slf4j, see http://git.eclipse.org/c/eclipselink/eclipselink.runtime.git/tree/foundation/org.eclipse.persistence.extension/src/org/eclipse/persistence/logging/slf4j/SLF4JLogger.java

thanks,
--lukas

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Re: Adding dependency to EclipseLink (ant+maven+Tycho) [message #1758051 is a reply to message #1758041]

Thu, 23 March 2017 06:45

Pavel No

Messages: 47
Registered: May 2016

Member

Hi Lukas.
Yes, this is the class which I want to add to eclipselink code. However, in order to add this file to code I must provide slf4j as dependency. This is the reason of my question.
Please, note, that because of some reasons (osgi related) I need to add this file to eclipselink project.
So the question is the same how to add this dependency to project.

[Updated on: Thu, 23 March 2017 06:47]

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Re: Adding dependency to EclipseLink (ant+maven+Tycho) [message #1758090 is a reply to message #1758051]

Thu, 23 March 2017 12:45

Lukas Jungmann

Messages: 36
Registered: November 2013
Location: Prague, Czech Republic

Member

that class is part of eclipselink codebase and it used to be part of eclipselink core temporarily , see https://bugs.eclipse.org/bugs/show_bug.cgi?id=296391 which contains full patch and refers to http://git.eclipse.org/c/eclipselink/eclipselink.runtime.git/commit/?id=dcddcca8957380345b981ce9cba11104667032cc
Due to the number of dependencies this brings we decided to move this out from the main 'eclipselink.jar' and provide this functionality through the extensions module. These changes are part of current master.

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Re: Adding dependency to EclipseLink (ant+maven+Tycho) [message #1758097 is a reply to message #1758090]

Thu, 23 March 2017 14:00

Pavel No

Messages: 47
Registered: May 2016

Member

Thank you for such detailed explanation. As I understand I should clone now mater and build the code. What is "plugin"? Is it a separated "jar" which must be on classpath? Should I do something else to use this "plugin"?

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