Could you attach your job configuration file (config.xml)?

Note that in the attached config.xml the environment variables (EVVERSION among others) are manually duplicated in the make-release batch task (to make it work)

Code changed in jenkins
User: Gregory Boissinot
Path:
pom.xml
src/main/java/hudson/plugins/batch_task/BatchRun.java
http://jenkins-ci.org/commit/batch-task-plugin/69b3bde996d5500b18c69f582c7c14e5d1ef9fe4
Log:
Fix JENKINS-13647

The use of EnvVarsResolver in that commit seems to cause a blocker issue when running a batch task. Nothing happens on the GUI, the console is empty, here's the server log stacktrace:

hudson.model.Executor run
SEVERE: Executor threw an exception
java.lang.NullPointerException: Current Project is null
        at com.sonyericsson.rebuild.RebuildAction.getProject(RebuildAction.java:117)
        at com.sonyericsson.rebuild.RebuildAction.getUrlName(RebuildAction.java:144)
        at org.jenkinsci.lib.envinject.service.EnvInjectActionRetriever.getEnvInjectAction(EnvInjectActionRetriever.java:32)
        at org.jenkinsci.lib.envinject.service.EnvVarsResolver.getEnVars(EnvVarsResolver.java:51)
        at hudson.plugins.batch_task.BatchRun.run(BatchRun.java:224)
        at hudson.model.ResourceController.execute(ResourceController.java:88)
        at hudson.model.Executor.run(Executor.java:239)

Tested with Jenkins 1.460 and 1.463

According to the trace, it is due to the rebuild Jenkins Plugin

AbstractProject currentProject = null;
StaplerRequest request = Stapler.getCurrentRequest();
if (request != null) {
 currentProject = request.findAncestorObject(AbstractProject.class);
}
if (currentProject == null) {
 throw new NullPointerException("Current Project is null");
}

Well, I don't know since downgrading batch-task is fixing the issue, even if it's the rebuild-plugin which throws the exception. I'm not sure to understand why the rebuild-plugin is called when executing a batch task, but if it was already called before that change, then its "current project" wasn't null...
Do you think the use of EnvInject in batch-task requires some upgrade on rebuild-plugin? Isn't there a broken backward compatibility which could be fixed in EnvInject?

Code changed in jenkins
User: Gregory Boissinot
Path:
src/main/java/com/sonyericsson/rebuild/RebuildAction.java
http://jenkins-ci.org/commit/rebuild-plugin/1b940ee344354bef8f8a1629c219dd453e2c903c
Log:
Fix for JENKINS-13647
Avoid NullPointerException on the getProject() method when getURL() method is call from a content where your can't retrieve a Project object in the request (such as in the batch-task plugin)