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    java.lang.NullPointerException
        at edu.emory.mathcs.backport.java.util.concurrent.ConcurrentHashMap.hash(ConcurrentHashMap.java:160)
        at edu.emory.mathcs.backport.java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:767)
        at com.atlassian.bamboo.build.DefaultBuildDefinitionManager.getBuildDefinition(DefaultBuildDefinitionManager.java:24)
        at com.atlassian.bamboo.build.DefaultBuild.getBuildDefinition(DefaultBuild.java:419)
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