Fixed a possible NPE in computing dependency changes.
Fixed a possible NPE in computing dependency changes.

java.lang.NullPointerException
	at hudson.model.AbstractBuild$DependencyChange.<init>(AbstractBuild.java:1036)
	at hudson.model.AbstractBuild.getDependencyChanges(AbstractBuild.java:1002)
	at hudson.model.AbstractBuild.getCulprits(AbstractBuild.java:280)
	at hudson.model.AbstractBuild.getCulprits(AbstractBuild.java:271)
	at hudson.model.AbstractBuild$AbstractRunner.post(AbstractBuild.java:538)
	at hudson.model.Run.run(Run.java:1303)
	at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:293)
	at hudson.model.ResourceController.execute(ResourceController.java:88)
	at hudson.model.Executor.run(Executor.java:137)

git-svn-id: 28f34f9aa52bc55a5ddd5be9e183c5cccadc6ee4@35368 71c3de6d-444a-0410-be80-ed276b4c234a

stefanbrausch/hudson-main,stefanbrausch/hudson-main,stefanbrausch/hudson-main,stefanbrausch/hudson-main,stefanbrausch/hudson-main,stefanbrausch/hudson-main,stefanbrausch/hudson-main