After JENKINS-20226, the hacks the Maven plugin was using to embed a configuration page from the Mailer plugin broke.

Was fixed in 2.1. (JIRA was apparently down so the issue link daemon did not note this.)

Hi Jesse,
I can confirm after updating mailer to 1.8 and maven integration to 2.1 its working fine. Thanks for the quick fix.

I'm sorry but how can you update Maven Integration plugin to 2.1 when it's bundled with Jenkins? We are using latest (LTS) Jenkins 1.532.1?

Bundled plugins can be upgraded. https://wiki.jenkins-ci.org/display/JENKINS/Pinned+Plugins

But the 2.1 version of the Maven plugin requires Jenkins 1.538 or later. It cannot be run in LTS. (Or perhaps it could, but there might be various severe errors.) https://github.com/jenkinsci/maven-plugin/commit/e01eb60574c45b6c16091bfd91a05aa36071df68

Code changed in jenkins
User: Jesse Glick
Path:
pom.xml
src/main/java/hudson/maven/MavenModuleSet.java
src/main/java/hudson/maven/reporters/MavenMailer.java
src/main/resources/hudson/maven/MavenModuleSet/configure-entries.jelly
src/main/resources/hudson/maven/reporters/MavenMailer/config.jelly
http://jenkins-ci.org/commit/maven-plugin/4cceffb99bed63d2fa1ae262702273cd0983ee02
Log:
[FIXED JENKINS-21045] Hacks used by MavenMailer to load config.jelly from plain Mailer broke in mailer 1.6.
Fixing to use its own copy of the configuration page.
Also simplifying handling of perModuleEmail (this should be part of MavenMailer, not MavenModuleSet);
and generally normalizing and simplifying form databinding.

Code changed in jenkins
User: Jesse Glick
Path:
src/main/java/hudson/maven/reporters/MavenMailer.java
http://jenkins-ci.org/commit/maven-plugin/ba7d53bfb7c14a6c3ee36db1a778646838d914bb
Log:
JENKINS-21045 MavenMailerTest was still using non-data-bound constructor; safest to keep it for compatibility.

Code changed in jenkins
User: Oliver Gondža
Path:
src/main/java/org/jenkinsci/test/acceptance/Matchers.java
src/main/java/org/jenkinsci/test/acceptance/utils/mail/MailService.java
src/test/java/plugins/MavenPluginTest.java
http://jenkins-ci.org/commit/acceptance-test-harness/a4878c700d0fab5db68c33b93701f0658a1c54f6
Log:
Reproduce JENKINS-20209 and JENKINS-21045

Compare: https://github.com/jenkinsci/acceptance-test-harness/compare/f6d1423b7335...a4878c700d0f