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  1. JSPWiki
  2. JSPWIKI-447

InstantiationException in PluginManager

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Details

    • Bug
    • Status: Closed
    • Minor
    • Resolution: Fixed
    • 2.8, 2.8.1, 2.8.2, 3.0
    • 3.0
    • Plugins
    • None
    • N/A

    Description

      During startup the PluginManager throws the following Exceptions :

      2008-11-30 13:33:23,443 [main] INFO com.ecyrd.jspwiki.plugin.PluginManager - Cannot initialize plugin com.ecyrd.jspwiki.forms.FormElement
      java.lang.InstantiationException
      at sun.reflect.InstantiationExceptionConstructorAccessorImpl.newInstance(InstantiationExceptionConstructorAccessorImpl.java:30)
      at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
      at java.lang.Class.newInstance0(Class.java:355)
      at java.lang.Class.newInstance(Class.java:308)
      at com.ecyrd.jspwiki.plugin.PluginManager$WikiPluginInfo.newPluginInstance(PluginManager.java:798)
      at com.ecyrd.jspwiki.plugin.PluginManager$WikiPluginInfo.initializePlugin(PluginManager.java:897)
      at com.ecyrd.jspwiki.plugin.PluginManager.registerPlugin(PluginManager.java:692)
      at com.ecyrd.jspwiki.plugin.PluginManager.registerAllPlugins(PluginManager.java:718)
      at com.ecyrd.jspwiki.plugin.PluginManager.<init>(PluginManager.java:199)
      at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
      at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
      at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
      at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
      at com.ecyrd.jspwiki.util.ClassUtil.getMappedObject(ClassUtil.java:277)
      at com.ecyrd.jspwiki.util.ClassUtil.getMappedObject(ClassUtil.java:229)
      at com.ecyrd.jspwiki.WikiEngine.initialize(WikiEngine.java:531)
      at com.ecyrd.jspwiki.WikiEngine.<init>(WikiEngine.java:400)
      at com.ecyrd.jspwiki.WikiEngine.getInstance(WikiEngine.java:341)
      at com.ecyrd.jspwiki.ui.WikiServletFilter.init(WikiServletFilter.java:80)
      at com.ecyrd.jspwiki.ui.WikiJSPFilter.init(WikiJSPFilter.java:76)
      at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:275)
      at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:397)
      at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:108)
      at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3709)
      at org.apache.catalina.core.StandardContext.start(StandardContext.java:4356)
      at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
      at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
      at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
      at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:924)
      at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:887)
      at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)
      at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1147)
      at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
      at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
      at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
      at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
      at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
      at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
      at org.apache.catalina.core.StandardService.start(StandardService.java:516)
      at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
      at org.apache.catalina.startup.Catalina.start(Catalina.java:578)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      at java.lang.reflect.Method.invoke(Method.java:597)
      at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
      at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)

      This is done for :

      metskem@blackpearl:/var/jspwiki/log$ grep 'Cannot initialize plugin' jspwiki.log
      2008-11-28 20:20:37,433 [main] INFO com.ecyrd.jspwiki.plugin.PluginManager - Cannot initialize plugin com.ecyrd.jspwiki.plugin.AbstractReferralPlugin
      2008-11-28 20:20:37,621 [main] INFO com.ecyrd.jspwiki.plugin.PluginManager - Cannot initialize plugin com.ecyrd.jspwiki.forms.FormElement
      2008-11-28 20:20:37,631 [main] INFO com.ecyrd.jspwiki.plugin.PluginManager - Cannot initialize plugin com.ecyrd.jspwiki.plugin.WikiPlugin

      The PluginManager user the Stripes Resolver Utility to find implementations of WikiPlugin:

      resolver.findImplementations( WikiPlugin.class, paths );

      This list also includes Interfaces and abstract classes, those should be excluded from registering.

      Fix is being worked on

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            metskem Harry Metske
            metskem Harry Metske
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            Dates

              Created:
              Updated:
              Resolved: