To limit the number of characters entered in a summary field modify, the following velocity file <installation directory>/atlassian-jira/WEB-INF/classes/templates/jira/issue/field/summary-edit.vm. Please restart JIRA after the changes have been made. Note, these changes will also affect the size of summary fields for existing issues.
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|| Severity | Low
Article ID: JIRAKB{pageid}
http://support.atlassian.com/browse/JSP-17061
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