InstantiationException in PluginManager
---------------------------------------
Key: JSPWIKI-447
URL: https://issues.apache.org/jira/browse/JSPWIKI-447
Project: JSPWiki
Issue Type: Bug
Components: Plugins
Affects Versions: 2.8.1, 2.8, 2.8.2, 3.0
Environment: N/A
Reporter: Harry Metske
Assignee: Harry Metske
Priority: Minor
Fix For: 3.0
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 :
[EMAIL PROTECTED]:/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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