[ https://issues.jboss.org/browse/GTNPORTAL-3537?page=com.atlassian.jira.pl... ] Trong Tran commented on GTNPORTAL-3537: --------------------------------------- the *#sanitizePortletName* method not only replace "/" by "_", it also truncates the "unique" value with *#substring(0, MAX - 1)* which MAX is 30. That's mean that the "sanitized" value is max 29 length. Unfortunately the max length of "unique" value can be 30 characters: {code} String unique = portletName.substring(0,Math.min(portletName.length(), 20)) + String.valueOf(contentId.hashCode()); {code} Therefore, in the case if we have two different "unique" values with "local._juzu-tutorial1630574212" and "local._juzu-tutorial1630574210". After sanitization, the "sanitized" values will be the same "local._juzu-tutorial163057421" ==> It raises the problem. So the proper fix for this could just be modifying: {code} if (sizePortletName >= MAX) { - sanitizedPortletName = sanitizedPortletName.substring(0, MAX - 1); + sanitizedPortletName = sanitizedPortletName.substring(0, MAX); } else if (sizePortletName <= MIN) { sanitizedPortletName += "Portlet"; {code} -- This message was sent by Atlassian JIRA (v6.3.1#6329)