It seems with this you lose some functionality with code in the `src` 
directory.

Using classes from the src/ directory is also possible, but trickier. 
> Whereas the @Library annotation prepares the “classpath” of the script 
> prior to compilation, by the time a library step is encountered the script 
> has already been compiled. Therefore you cannot import or otherwise 
> “statically” refer to types from the library.
>

Is there a way to specify the branch dynamically in the global library scm 
settings? I see in the legacy git loader There is reference to env 
variables in the `Branches to build` section.

${ENV_VARIABLE}
>
> It is also possible to use environment variables. In this case the 
>> variables are evaluated and the result is used as described above.
>
> E.g. ${TREEISH}, refs/tags/${TAGNAME},... 
>
>
Is this able to load the branch based on the current multibranch pipeline 
env? I didn't see any variable reference in the modern scm git config.

On Wednesday, January 15, 2020 at 11:59:29 PM UTC-5, Jan Monterrubio wrote:
>
> https://jenkins.io/doc/book/pipeline/shared-libraries/
>
> Check the loading dynamic libraries portion. It might do what you want. 
>
> On Wed, Jan 15, 2020 at 15:12 Chris Carpenter <[email protected] 
> <javascript:>> wrote:
>
>> Is there a way to dynamically load the library from dynamic branch 
>> variable like this:
>>
>> @Library("jenkins-pipeline@${env.BRANCH_NAME}") _
>>
>> In a multi branch pipeline you have access to the current branch name in 
>> the environment variable `BRANCH_NAME`. I'd like to be able to test changes 
>> to my pipeline before committing them to master branch potentially breaking 
>> builds.
>>
>> I get the following warning in the console output:
>>
>> WorkflowScript: @Library value ‘jenkins-pipeline@$env.BRANCH_NAME’ was not a 
>> constant; did you mean to use the ‘library’ step instead?
>>
>>
>>
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