CreateJobAdvancedPlugin类似乎没有描述符。您需要从PluginManager获取插件实例，例如
import hudson.PluginWrapperimport hudson.plugins.createjobadvanced.CreateJobAdvancedPluginimport jenkins.model.JenkinsPluginWrapper wrapper = Jenkins.instance.pluginManager.getPlugin(CreateJobAdvancedPlugin)CreateJobAdvancedPlugin plugin = wrapper.getPlugin() as CreateJobAdvancedPlugin
