Plugin development - upgrading a plugin to work with pipelines, jenkins java.lang.AbstractMethodError

[Aaron Fay]

Hello all, 

I'm attempting to update our company's Jenkins plugin to work with Pipelines (and Jenkins 2.x), following this guide: https://jenkins.io/doc/developer/plugin-development/pipeline-integration/. 

The source code for our plugin is here: https://github.com/ghost-inspector/ghost-inspector-jenkins-plugin/tree/2.0

I have to admit, I'm a bit out of my element here, I've managed to build the hpi, but now I am running into this error at runtime and I'm not completely sure how to move forward on this issue. I would greatly appreciate any pointers your group might have to offer:

Building in workspace /var/jenkins_home/workspace/test
FATAL: null
java.lang.AbstractMethodError
	at hudson.tasks.BuildStepCompatibilityLayer.perform(BuildStepCompatibilityLayer.java:130)
	at hudson.tasks.BuildStepCompatibilityLayer.perform(BuildStepCompatibilityLayer.java:85)
	at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)
	at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:744)
	at hudson.model.Build$BuildExecution.build(Build.java:206)
	at hudson.model.Build$BuildExecution.doRun(Build.java:163)
	at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:504)
	at hudson.model.Run.execute(Run.java:1794)
	at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
	at hudson.model.ResourceController.execute(ResourceController.java:97)
	at hudson.model.Executor.run(Executor.java:429)
Finished: FAILURE

Thanks in advance,

Aaron

[Slide]

You probably want to implement SimpleBuildStep in your Builder and then override the perform method that takes a Run and FilePath instead of a build object. You can look at 

https://github.com/jenkinsci/publish-over-cifs-plugin/blob/ab10d833e2dadd57a4ffc4a257092d85b5343fed/src/main/java/jenkins/plugins/publish_over_cifs/CifsPromotionPublisherPlugin.java#L52

and 

https://github.com/jenkinsci/publish-over-cifs-plugin/blob/ab10d833e2dadd57a4ffc4a257092d85b5343fed/src/main/java/jenkins/plugins/publish_over_cifs/CifsPromotionPublisherPlugin.java#L69

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[Jesse Glick]

On Thu, May 24, 2018 at 5:53 PM, Slide <slide...@gmail.com> wrote:
> You probably want to implement SimpleBuildStep in your Builder and then
> override the perform method that takes a Run and FilePath instead of a build
> object.

Yes. If the developer guide is not sufficiently clear about this,
please file jenkins-infra/jenkins.io patches to improve it.