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Improvement
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Resolution: Fixed
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Major
See JENKINS-65988. Jenkins core is using Guava 11.0.1, which was released on January 9, 2012. Jenkins core would like to upgrade to Guava 30.1.1, which was released on March 19, 2021. Plugins must be prepared to be compatible with both Guava 11.0.1 and Guava 30.1.1 in advance of this core transition.
In particular, this plugin has been identified as using the com.google.common.collect.MapMaker API, which has changed between Guava 11.0.1 and latest. In particular, the following methods have been removed:
- MapMaker#expiration(long duration, TimeUnit unit)
- MapMaker#makeComputingMap(Function<? super K,? extends V> computingFunction)
- MapMaker#softKeys()
- MapMaker#softValues()
To facilitate the Jenkins core transition, this plugin must be prepared and released such that it works with both Guava 11.0.1 and latest. Even if you aren't using one of these removed methods, consider migrating away from MapMaker anyway to simplify maintenance. Consider using Collections#synchronizedMap with WeakHashMap, or ClassValue. Our general recommendation for plugins with sophisticated caching needs is to adopt Caffeine via the Jenkins Caffeine API plugin.
- links to
[JENKINS-66311] Prepare Exclusion for core Guava upgrade
Hi basil, thank you very much for your contribution.
Sorry for the late reply, I was traveling and came back home yesterday. I will do my best to take a look at this in the coming days.
I have not touched that project in quite a long time, I need to go through the process of how to test and publish a new version of the plugin.
Anthony Roux
added a comment - - edited Hi basil , thank you very much for your contribution.
Sorry for the late reply, I was traveling and came back home yesterday. I will do my best to take a look at this in the coming days.
I have not touched that project in quite a long time, I need to go through the process of how to test and publish a new version of the plugin. 
Basil Crow
added a comment - Thank you for the response anthonyroux. Please let me know if there is anything I can do to help or if there are any questions I can answer. I am happy to assist with getting this merged and released any way I can.
Basil Crow
added a comment - Thank you for the response anthonyroux . Please let me know if there is anything I can do to help or if there are any questions I can answer. I am happy to assist with getting this merged and released any way I can. Basil Crow
added a comment - Fixed in jenkinsci/exclusion-plugin#11 . Released in 0.13 . 
anthonyroux Would you be able to take a look at the PR I opened?