Updating the pipeline-model-definition plugin to v1.2 not only beaks the running jobs, as advertised, but also all pipelines, as introduces a dependency with java 8. This java version is only required for jenkins v2.73, but for the plugin only v2.7 is needed.
I attach a simple pipeline that produces the error, and the error itself.
I see in the changelog some problems with compiling the plugin with the wrong java version, so I suspect this may be the same case.
|Field||Original Value||New Value|
|Status||Open [ 1 ]||In Progress [ 3 ]|
|Status||In Progress [ 3 ]||In Review [ 10005 ]|
|Remote Link||This issue links to "PR #205 (Web Link)" [ 17816 ]|
|Resolution||Fixed [ 1 ]|
|Status||In Review [ 10005 ]||Resolved [ 5 ]|
|Status||Resolved [ 5 ]||Closed [ 6 ]|