Return-Path: Delivered-To: apmail-incubator-jspwiki-dev-archive@locus.apache.org Received: (qmail 39999 invoked from network); 28 Jan 2008 10:23:58 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.2) by minotaur.apache.org with SMTP; 28 Jan 2008 10:23:58 -0000 Received: (qmail 36164 invoked by uid 500); 28 Jan 2008 10:23:49 -0000 Delivered-To: apmail-incubator-jspwiki-dev-archive@incubator.apache.org Received: (qmail 36153 invoked by uid 500); 28 Jan 2008 10:23:49 -0000 Mailing-List: contact jspwiki-dev-help@incubator.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: jspwiki-dev@incubator.apache.org Delivered-To: mailing list jspwiki-dev@incubator.apache.org Received: (qmail 36144 invoked by uid 99); 28 Jan 2008 10:23:49 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 28 Jan 2008 02:23:49 -0800 X-ASF-Spam-Status: No, hits=-100.0 required=10.0 tests=ALL_TRUSTED X-Spam-Check-By: apache.org Received: from [140.211.11.4] (HELO brutus.apache.org) (140.211.11.4) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 28 Jan 2008 10:23:42 +0000 Received: from brutus (localhost [127.0.0.1]) by brutus.apache.org (Postfix) with ESMTP id 4FF8C71422B for ; Mon, 28 Jan 2008 02:23:34 -0800 (PST) Message-ID: <16738357.1201515814302.JavaMail.jira@brutus> Date: Mon, 28 Jan 2008 02:23:34 -0800 (PST) From: "Harry Metske (JIRA)" To: jspwiki-dev@incubator.apache.org Subject: [jira] Commented: (JSPWIKI-164) NullPointerException in com.ecyrd.jspwiki.util.WatchDog In-Reply-To: <21248524.1201285174439.JavaMail.jira@brutus> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Virus-Checked: Checked by ClamAV on apache.org [ https://issues.apache.org/jira/browse/JSPWIKI-164?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12563109#action_12563109 ] Harry Metske commented on JSPWIKI-164: -------------------------------------- I spent quite a few hours now, not yet solved, but the following observations: The NPE is just a result of the following excption: SEVERE: Exception starting filter WikiJSPFilter java.lang.NoClassDefFoundError: ReferringPagesPlugin (wrong name: com/ecyrd/jspwiki/plugin/ReferringPagesPlugin) at java.lang.ClassLoader.defineClassImpl(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:256) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:151) at java.net.URLClassLoader.defineClass(URLClassLoader.java:589) at java.net.URLClassLoader.access$400(URLClassLoader.java:123) at java.net.URLClassLoader$ClassFinder.run(URLClassLoader.java:1034) at java.security.AccessController.doPrivileged(AccessController.java:279) at java.net.URLClassLoader.findClass(URLClassLoader.java:491) at java.lang.ClassLoader.loadClass(ClassLoader.java:629) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:328) at java.lang.ClassLoader.loadClass(ClassLoader.java:595) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1267) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1198) at com.ecyrd.jspwiki.util.ClassUtil.findClass(ClassUtil.java:120) at com.ecyrd.jspwiki.plugin.PluginManager.findPluginClass(PluginManager.java:279) at com.ecyrd.jspwiki.plugin.PluginManager.executeParse(PluginManager.java:999) at com.ecyrd.jspwiki.parser.PluginContent.executeParse(PluginContent.java:191) at com.ecyrd.jspwiki.parser.JSPWikiMarkupParser.handleHyperlinks(JSPWikiMarkupParser.java:1407) at com.ecyrd.jspwiki.parser.JSPWikiMarkupParser.handleOpenbracket(JSPWikiMarkupParser.java:2203) at com.ecyrd.jspwiki.parser.JSPWikiMarkupParser.parseToken(JSPWikiMarkupParser.java:2725) at com.ecyrd.jspwiki.parser.JSPWikiMarkupParser.fillBuffer(JSPWikiMarkupParser.java:2557) at com.ecyrd.jspwiki.parser.JSPWikiMarkupParser.parse(JSPWikiMarkupParser.java:2778) at com.ecyrd.jspwiki.WikiEngine.textToHTML(WikiEngine.java:1606) at com.ecyrd.jspwiki.WikiEngine.scanWikiLinks(WikiEngine.java:1510) at com.ecyrd.jspwiki.ReferenceManager.updatePageReferences(ReferenceManager.java:179) at com.ecyrd.jspwiki.ReferenceManager.initialize(ReferenceManager.java:284) at com.ecyrd.jspwiki.WikiEngine.initReferenceManager(WikiEngine.java:667) at com.ecyrd.jspwiki.WikiEngine.initialize(WikiEngine.java:569) at com.ecyrd.jspwiki.WikiEngine.(WikiEngine.java:386) at com.ecyrd.jspwiki.WikiEngine.getInstance(WikiEngine.java:334) at com.ecyrd.jspwiki.ui.WikiServletFilter.init(WikiServletFilter.java:55) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:223) ............... Very strange to me, so I started comparing different JSPWiki instances, switched JDK levels, checked permissions, replaced repositories, nothing helped. I finally ended up deleting all pages in the repository that have [{ReferringPagesPlugin}] in them, and cleaning the JSPWiki work directory. Then JSPWiki finally starts up. Now what is wrong with the ReferringPagesPlugin ?!! Several other plugins work fine (RecentChanges, ReferredPages, CurrentTime), but if I create a page that has [{ReferringPagesPlugin}] in it, I get the above exception when I try to save the page. If I use the fully qualified name (com.ecyrd.jspwiki.plugin.ReferringPagesPlugin), it works fine. I'm lost for now, but will continue to investigate the next few days, if any of you has hints......... > NullPointerException in com.ecyrd.jspwiki.util.WatchDog > ------------------------------------------------------- > > Key: JSPWIKI-164 > URL: https://issues.apache.org/jira/browse/JSPWIKI-164 > Project: JSPWiki > Issue Type: Bug > Components: Core & storage > Affects Versions: 2.6.1 > Environment: z/OS 1.8 > IBM J9 VM (build 2.3, J2RE 1.5.0 IBM J9 2.3 z/OS s390x-64 j9vmmz6423-20071007 (JIT enabled) > Tomcat 5.5.17 > JSPWiki 2.6.1-cvs-9 > Reporter: Harry Metske > > I can successfully run JSPWiki 2.6.1 (all releases) on Linux with Sun JDK 5, but on an IBM JDK on z/OS JSPWiki does not startup. > The stdout shows the following NPE's : > Starting up background thread: JSPWiki Lucene Indexer. > Starting up background thread: WatchDog for 'JSPWiki'. > Starting up background thread: JSPWiki Lucene Indexer. > Background thread error: (stack trace follows) > java.lang.NullPointerException > at com.ecyrd.jspwiki.util.WatchDog.enterState(WatchDog.java:231) > at com.ecyrd.jspwiki.search.LuceneSearchProvider$LuceneUpdater.backgroundTask(LuceneSearchProvider.java:711) > at com.ecyrd.jspwiki.util.WikiBackgroundThread.run(WikiBackgroundThread.java:135) > Exception in thread "JSPWiki Lucene Indexer" com.ecyrd.jspwiki.InternalWikiException > at com.ecyrd.jspwiki.util.WikiBackgroundThread.run(WikiBackgroundThread.java:171) > Background thread error: (stack trace follows) > java.lang.NullPointerException > at com.ecyrd.jspwiki.util.WatchDog.enterState(WatchDog.java:231) > at com.ecyrd.jspwiki.search.LuceneSearchProvider$LuceneUpdater.backgroundTask(LuceneSearchProvider.java:711) > at com.ecyrd.jspwiki.util.WikiBackgroundThread.run(WikiBackgroundThread.java:135) > Exception in thread "JSPWiki Lucene Indexer" com.ecyrd.jspwiki.InternalWikiException > at com.ecyrd.jspwiki.util.WikiBackgroundThread.run(WikiBackgroundThread.java:171) > Background thread error: (stack trace follows) > java.lang.NullPointerException > at com.ecyrd.jspwiki.util.WatchDog$WatchDogThread.backgroundTask(WatchDog.java:375) > at com.ecyrd.jspwiki.util.WikiBackgroundThread.run(WikiBackgroundThread.java:135) > Exception in thread "WatchDog for 'JSPWiki'" com.ecyrd.jspwiki.InternalWikiException > at com.ecyrd.jspwiki.util.WikiBackgroundThread.run(WikiBackgroundThread.java:171) > I'm not quite sure if this is a JVM bug or a JSPWiki bug. > I ran some additional debug-versions of JSPWiki, these showed that more static class variables, for instance c_kennel was null at line 375. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.