Attempt to (de-)serialize anonymous class hudson.maven.reporters.MavenArtifactArchiver and hudson.maven.reporters.MavenFingerprinter

[gary.l...@ge.com]

Hello,

 

I was on Jenkins 1.6.x I’ve upgraded and fresh install of Jenkins 2.136.

 

Since the upgrade I continuously get these warnings. I’m not sure what this is saying.  Any help would be greatly appreciated. Thanks!

 

I looked at the doc, but, don’t know what to do with it.

 

[WARNING] Attempt to (de-)serialize anonymous class hudson.maven.reporters.MavenArtifactArchiver$2; see: https://jenkins.io/redirect/serialization-of-anonymous-classes/

[WARNING] Attempt to (de-)serialize anonymous class hudson.maven.reporters.MavenFingerprinter$1; see: https://jenkins.io/redirect/serialization-of-anonymous-classes/

 

 

Thanks!

 

[gary.l...@ge.com]

?IS this a Bug?  I don't know. I guess noone really watches this support forum. I will enter a bug ticket to get some response. thank you. 

[Devin Nusbaum]

Hi Gary,

As the linked page explains, anonymous classes can cause various problems when serializing objects in Jenkins, so these messages are printed as a warning so we can identify potential issues. I think these are the anonymous classes in question: MavenArtifactArchiver$2, MavenFingerprinter$1. It looks like they are only used for remoting, so a PR to convert them to named classes would be welcome.

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[gary.l...@ge.com]

Thank you Devin!!!  I'm sorry what is a PR ? a Problem Report? Jenkins Jira. 

On Friday, August 10, 2018 at 12:07:57 PM UTC-5, gary.l...@ge.com wrote:

[Devin Nusbaum]

A PR is a Pull Request on GitHub. Here is the offending plugin’s source code: https://github.com/jenkinsci/maven-plugin. You could instead open an issue on Jira if you are not comfortable with Java development, but I don’t know how much time the Maven Plugin maintainers have to work on the plugin so it may be a while before anyone fixes it.

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[gary.l...@ge.com]

thank you Devin! greatly appreciate it. 

On Friday, August 10, 2018 at 12:07:57 PM UTC-5, gary.l...@ge.com wrote:

[ale rajesh]

Did you find any answer. am facing the same issue

[Pranav Kv]

Any one can comment on this? I'm also getting the same warning in jenkins 2.121.1

Regards

Peanav

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[Devin Nusbaum]

As I mentioned previously in the thread:

As the linked page explains, anonymous classes can cause various problems when serializing objects in Jenkins, so these messages are printed as a warning so we can identify potential issues. I think these are the anonymous classes in question: MavenArtifactArchiver$2, MavenFingerprinter$1. It looks like they are only used for remoting, so [a GitHub pull request] to convert them to named classes would be welcome [because I do not think there are any active maintainers working on the plugin so this error will not be fixed otherwise].

It looks like someone reported the issue on the bug tracker: JENKINS-53481 and a PR was opened to fix it: https://github.com/jenkinsci/maven-plugin/pull/120, but I do not know if there are any active maintainers who can merge and release the fix.

[Olivier Lamy]

Hi

Merged.

Release tomorrow.

Cheers

Olivier

[Olivier Lamy]

release done and available via your favourite update center!

Enjoy your weekend using the so great Jenkins Maven Integration Plugin!!

Cheers

Olivier

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[Pranav Kv]

Thank You So much  Mr. Oliver.

Could you please update the status in jira? The jira status showing "fixed but unreleased"

https://issues.jenkins-ci.org/browse/JENKINS-53481

Thanks, 

Pranav

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[Pranav Kv]

After upgrading version to 3.2 I'm getting diffrent warnings. This time it's related with Surefire Archiver

Re: Attempt to (de-)serialize anonymous class hudson.maven.reporters.SurefireArchiver$2