Not working with Jenkins latest versions

[kvysh]

I tried it on Jenkins 1.546 & 1.550, Following exception thrown

Stack trace
javax.servlet.ServletException: java.lang.ClassCastException: Cannot cast hudson.util.DescribableList to java.util.Vector
at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:778)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:858)
at org.kohsuke.stapler.MetaClass$12.dispatch(MetaClass.java:390)
at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:728)

[abozzoni]

I have the same problem with the 1.575

Caused by: java.lang.ClassCastException: Cannot cast hudson.util.DescribableList to java.util.Vector
at java.lang.Class.cast(Class.java:3005)
at com.attask.jenkins.ReflectionUtils.getField(ReflectionUtils.java:40)
at com.attask.jenkins.templates.ImplementationBuildWrapper.refreshAndSave(ImplementationBuildWrapper.java:142)
at com.attask.jenkins.templates.ImplementationBuildWrapper.syncFromTemplate(ImplementationBuildWrapper.java:97)
at com.attask.jenkins.templates.ImplementationBuildWrapper.sync(ImplementationBuildWrapper.java:64)
at com.attask.jenkins.templates.TemplateSyncAction.doSync(TemplateSyncAction.java:27)

[abozzoni]

I change in in the method refreshAndSave(...) of the class ImplementationBuildWrapper
Vector triggers = ReflectionUtils.getField(Vector.class, newImplementation, "triggers");
with this one:
List triggers = ReflectionUtils.getField(List.class, newImplementation, "triggers");
and seems to work.
the only thing I don't understand is why the list of the triggers of the project that use the template is cleared and only the triggers of the template are used.

I had the same issue with some plugins when upgrading to 1.565.2 stable from older stable. My old jobs needed to add the class="hudson.util.DescribableList" attribute to the <triggers> tag in every jobs/jobname/config.xml. New jobs are adding this attribute by default.