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java.lang.NullPointerException at java.security.MessageDigest.update(MessageDigest.java:293) at java.security.MessageDigest.digest(MessageDigest.java:368) at org.apache.commons.codec.digest.DigestUtils.md5(DigestUtils.java:165) at org.apache.commons.codec.digest.DigestUtils.md5(DigestUtils.java:190) at org.apache.commons.codec.digest.DigestUtils.md5Hex(DigestUtils.java:226) at com.atlassian.jira.components.issueeditor.action.DefaultContentIdCollector.calculateContentId(DefaultContentIdCollector.java:59) at com.atlassian.jira.components.issueviewer.viewissue.IssueSummaryProvider.check(IssueSummaryProvider.java:18) at com.atlassian.jira.components.issueviewer.action.AjaxIssueAction.populateIssueFields(AjaxIssueAction.java:166) at com.atlassian.jira.components.issueviewer.action.AjaxIssueAction.doDefault(AjaxIssueAction.java:140)