Christopher Janitschke created JSPWIKI-932: ----------------------------------------------
Summary: Failed to start managers. java.util.ConcurrentModificationException Key: JSPWIKI-932 URL: https://issues.apache.org/jira/browse/JSPWIKI-932 Project: JSPWiki Issue Type: Bug Affects Versions: 2.10.1 Reporter: Christopher Janitschke Priority: Minor Hi, if i restart the tomcat, sometimes one of the JSPWiki's won't come up again, due to java.util.ConcurrentModificationException. Any ideas? I have about 16 JSPWiki's on one server. Is it simply too much? Tomcat Version 8.0.22 JSP-Log: 2016-03-03 04:31:23,386 [wikiland.de-startStop-1] FATAL org.apache.wiki.WikiEngine - Failed to start managers. java.util.ConcurrentModificationException 2016-03-03 04:31:23,387 [wikiland.de-startStop-1] ERROR org.apache.wiki.WikiEngine - ERROR: Failed to create a Wiki engine, stacktrace follows org.apache.wiki.api.exceptions.WikiException: JSPWiki: Unable to load and setup properties from jspwiki.properties. Failed to start managers: null 2016-03-03 04:31:23,460 [JSPWiki Lucene Indexer] ERROR org.apache.wiki.search.LuceneSearchProvider - Unable to start lucene java.lang.IllegalStateException: Can't overwrite cause with java.lang.IllegalStateException: Illegal access: this web application instance has been stopped already. -- This message was sent by Atlassian JIRA (v6.3.4#6332)