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Level 2
March 30, 2017
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Two bundles looking for same package, but different versions

  • March 30, 2017
  • 12 replies
  • 4095 views

Hi,

I have this ERROR:

org.osgi.framework.BundleException: Uses constraint violation. Unable to resolve bundle revision com.sample.test-wcm-bundle [397.825] because it is exposed to package 'org.apache.commons.lang.math' from bundle revisions com.sample.test-wcm-dependencies-bundle [398.824] and com.day.commons.osgi.wrapper.commons-lang2 [45.0] via two dependency chains.

com.day.commons.osgi.wrapper.commons-lang2 has commons-lang version 2.5, 

My bundle com.sample.test-wcm-dependencies-bundle needs commons-lang version 2.6.

How to resolve this?

thanks

Srini 

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Best answer by joerghoh

Hi,

the sample works here on AEM 6.2, the april-project bundle ist active.

Jörg

12 replies

smacdonald2008
Level 10
March 31, 2017

All you need to do is open the bundle and modify the Manifest file to point to the correct version of a specific package. 

smacdonald2008
Level 10
March 31, 2017

See: 

SrininAuthor
Level 2
March 31, 2017

Hi Scott,

Thanks for your reply. Here we have two bundles, which bundle you were talking about?

com.day.commons.osgi.wrapper.commons-lang2 OR  com.sample.test-wcm-dependencies-bundle ?

com.sample.test-wcm-dependencies-bundle generates every time I do the build. So we can't change Manifest every time here.

So, I think, you were referring this com.day.commons.osgi.wrapper.commons-lang2.

thanks

Srini

SrininAuthor
Level 2
March 31, 2017

Hi Scott,

I am Sorry for the confusion. Here is the actual error. This com.day.cq.commons is using the old version. And this refers cq-commons-5.7.14.jar. I need to change the version Manifest of this file.

Chain 1:
  com.mynews.my-wcm-bundle [397.825]
    import: (&(osgi.wiring.package=org.apache.commons.lang.math)(version>=2.6.0)(!(version>=3.0.0)))
     |
    export: osgi.wiring.package=org.apache.commons.lang.math
  com.mynews.my-wcm-dependencies-bundle [398.824]

Chain 2:
  com.mynews.my-wcm-bundle [397.825]
    import: (osgi.wiring.package=com.day.cq.security)
     |
    export: osgi.wiring.package=com.day.cq.security; uses:=com.day.cq.commons
  com.day.cq.cq-security-api [468.0]
    import: (osgi.wiring.package=com.day.cq.commons)
     |
    export: osgi.wiring.package=com.day.cq.commons; uses:=org.apache.commons.lang.time
  com.day.cq.cq-commons [424.0]
    import: (&(osgi.wiring.package=org.apache.commons.lang.time)(version>=2.4.0)(!(version>=3.0.0)))
     |
    export: osgi.wiring.package=org.apache.commons.lang.time; uses:=org.apache.commons.lang.math
    export: osgi.wiring.package=org.apache.commons.lang.math
  com.day.commons.osgi.wrapper.commons-lang2 [45.0]
        at org.apache.felix.framework.Felix.resolveBundleRevision(Felix.java:3986)
        at org.apache.felix.framework.Felix.startBundle(Felix.java:2043)
        at org.apache.felix.framework.Felix$RefreshHelper.restart(Felix.java:4861)
        at org.apache.felix.framework.Felix.refreshPackages(Felix.java:4128)
        at org.apache.felix.framework.FrameworkWiringImpl.run(FrameworkWiringImpl.java:178)
        at java.lang.Thread.run(Thread.java:745)

smacdonald2008
Level 10
March 31, 2017

When i first read that - i thought you were pointing to a wrong version that could be corrected by referencing the correct version in the MF file.

Lets take a step back. How are you building the bundle? Are you using Maven 10 Archetype and Urber 6.2?  

MC_Stuff
Level 10
April 1, 2017

Hi Srini,

On your custom bundle embed the commons-lang version 2.6.  and exclude it to expose api.

Thanks,

SrininAuthor
Level 2
April 2, 2017

Hi MC,

Here are more details:

My code uses package X (AWS - 3rd party package) uses org.apache.commons.lang 2.6.0
My code uses package Y (Adobe - 3rd party package) uses org.apache.commons.lang 2.4

I can't adjust versions in either bundle X or Y. Is there anything I can do in my pom files. 

Excluding package import doesn't help.

joerghoh
Adobe Employee
Adobe Employee
April 2, 2017

Can you be more specific regarding the AWS bundle?

The typical approach for this would be to wrap the AWS bundle plus its dependencies into a custom bundle, which has not other external dependency.

Jörg

SrininAuthor
Level 2
April 3, 2017

Jörg,

I almost did like that only. I have a dependencies  bundle with all the 3rd party dependencies. 

My concerns are: The version conflict I talked about, is not there if I restart the author instance. But If I do the build, the version conflict issues comes back.Why?

Thanks

Srini

SrininAuthor
Level 2
April 3, 2017

Hello,

I am still these issues. I created a sample project here [1]. If you could import this project to Eclipse and build to your local, you can understand the issues I am facing. 

[1] https://github.com/nsrini/april-project

If you build to your local AEM, you could see that sideadmin won't respond and errors in the error.log. If anyone could resolve the errors by adjusting the pom files, I really appreciate. I use AEM 6.0 SP2.

Please let me know if you have any questions.

thanks

Srini