Changing User Permissions for Group Chat error

EDIT: This is only on an existing room…Any new rooms are fine…

When I go to modify User permissions of an existing room… I go to the group chat area, and click Edit, and then click User Permissions I am confronted with a big ol heap of java errors… anyone able to assist on how to resolve this? Would be much appreciated…

Here is the error I get, and I am running 3.6.2 as of today.

Exception:

java.lang.StringIndexOutOfBoundsException: String index out of range: -1
 at java.lang.String.substring(Unknown Source)
 at org.jivesoftware.openfire.admin.muc_002droom_002daffiliations_jsp._jspService(muc_002droom_002daffiliations_jsp.java:336)
 at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
 at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)
 at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1093)
 at com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:118)
 at com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:52)
 at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
 at org.jivesoftware.util.LocaleFilter.doFilter(LocaleFilter.java:66)
 at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
 at org.jivesoftware.util.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:42)
 at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
 at org.jivesoftware.admin.PluginFilter.doFilter(PluginFilter.java:70)
 at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
 at org.jivesoftware.admin.AuthCheckFilter.doFilter(AuthCheckFilter.java:146)
 at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
 at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360)
 at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
 at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
 at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:726)
 at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
 at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:206)
 at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
 at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
 at org.mortbay.jetty.Server.handle(Server.java:324)
 at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505)
 at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:829)
 at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514)
 at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
 at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380)
 at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395)
 at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488)

So problem still persists… any takers?

I have not made any headway on this…

any advice is much appreciated… thanks!

So it seemed the only resolution to this was to actually DELETE the group and Re-Create the group, i’m sure there must be a better way, but that was the only way i could manage in a pinch…