DeleteProject.jspa gives java.lang.NullPointerException on certain projects

2016-02-04 16:55:31,912 http-bio-58080-exec-9 ERROR .bot 1006x1362x1 16w2rqc 10.80.118.218,0:0:0:0:0:0:0:1 /secure/project/DeleteProject.jspa [jira.index.ha.DefaultReplicatedIndex
java.lang.NullPointerException
        at com.atlassian.jira.index.ha.DefaultReplicatedIndexManager$1.consume(DefaultReplicatedIndexManager.java:73)
        at com.atlassian.jira.index.ha.DefaultReplicatedIndexManager$1.consume(DefaultReplicatedIndexManager.java:69)
        at com.atlassian.jira.util.collect.CollectionUtil.foreach(CollectionUtil.java:44)
        at com.atlassian.jira.util.collect.CollectionUtil.foreach(CollectionUtil.java:59)
        at com.atlassian.jira.issue.util.IssueObjectIssuesIterable.foreach(IssueObjectIssuesIterable.java:28)
        at com.atlassian.jira.index.ha.DefaultReplicatedIndexManager.reindexIssues(DefaultReplicatedIndexManager.java:68)
        at com.atlassian.jira.issue.index.DefaultIndexManager.reIndexIssues(DefaultIndexManager.java:612)