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    java.lang.NullPointerException
        at org.jvnet.hudson.plugins.DownStreamProjectActionFactory.createFor(DownStreamProjectActionFactory.java:61)
        at hudson.model.AbstractProject.createTransientActions(AbstractProject.java:675)
        at hudson.maven.AbstractMavenProject.createTransientActions(AbstractMavenProject.java:177)
        at hudson.maven.MavenModuleSet.createTransientActions(MavenModuleSet.java:365)
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