Using 1.37 of the plugin and 1.531 of Jenkins, getting stack trace when clicking on the email slicer.

[Author indicated in an email to me: "This is because Maven support was originally baked into Jenkins, and now is separated out, and some teams are disabling Maven support because they don't need it. The workaround is to reinstall/re-enable that Maven support plugin."]

We do have Maven diabled, because we do not use it, but it would be useful if the email slicing functionality did not depend on it.

javax.servlet.ServletException: java.lang.NoClassDefFoundError: hudson/maven/MavenModuleSet
at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:735)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:799)
at org.kohsuke.stapler.MetaClass$12.dispatch(MetaClass.java:381)
at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:685)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:799)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:587)
at org.kohsuke.stapler.Stapler.service(Stapler.java:218)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:45)
at winstone.ServletConfiguration.execute(ServletConfiguration.java:248)
at winstone.RequestDispatcher.forward(RequestDispatcher.java:333)
at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:376)
at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:96)
at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:88)
at winstone.FilterConfiguration.execute(FilterConfiguration.java:194)
at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366)
at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:48)
at winstone.FilterConfiguration.execute(FilterConfiguration.java:194)
at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84)
at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76)
at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164)
at winstone.FilterConfiguration.execute(FilterConfiguration.java:194)
at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366)
at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:46)
at winstone.FilterConfiguration.execute(FilterConfiguration.java:194)
at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366)
at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:81)
at winstone.FilterConfiguration.execute(FilterConfiguration.java:194)
at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366)
at winstone.RequestDispatcher.forward(RequestDispatcher.java:331)
at winstone.RequestHandlerThread.processRequest(RequestHandlerThread.java:227)
at winstone.RequestHandlerThread.run(RequestHandlerThread.java:150)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NoClassDefFoundError: hudson/maven/MavenModuleSet
at configurationslicing.email.CoreEmailSlicer$CoreEmailSliceSpec.getProjectHandler(CoreEmailSlicer.java:36)
at configurationslicing.email.AbstractEmailSliceSpec.getValues(AbstractEmailSliceSpec.java:32)
at configurationslicing.email.AbstractEmailSliceSpec.getValues(AbstractEmailSliceSpec.java:16)
at configurationslicing.UnorderedStringSlicer.accumulate(UnorderedStringSlicer.java:72)
at configurationslicing.UnorderedStringSlicer.accumulate(UnorderedStringSlicer.java:6)
at configurationslicing.ConfigurationSlicing$SliceExecutor.execute(ConfigurationSlicing.java:125)
at configurationslicing.ConfigurationSlicing$SliceExecutor.<init>(ConfigurationSlicing.java:113)
at configurationslicing.ConfigurationSlicing.getDynamic(ConfigurationSlicing.java:98)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:297)
at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:160)
at org.kohsuke.stapler.MetaClass$12.dispatch(MetaClass.java:379)
at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:685)
... 38 more