500 error when deleting commercial plug-in

I accidentally added the “Spark Fastpath Webchat” plug-in … and when I tried to delete it, got this on the response:


HTTP ERROR: 500

org/mortbay/jetty/servlet/WebApplicationContext

RequestURI=/plugin-admin.jsp

Caused by:

java.lang.NoClassDefFoundError: org/mortbay/jetty/servlet/WebApplicationContext

at com.jivesoftware.liveassistant.WebClientPlugin.destroyPlugin(WebClientPlugin.ja va:110)

at org.jivesoftware.wildfire.container.PluginManager.unloadPlugin(PluginManager.ja va:526)

at org.jivesoftware.wildfire.admin.plugin_002dadmin_jsp._jspService(plugin_002dadm in_jsp.java:115)

at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:491)

at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.ja va:1074)

at com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:11 8)

at com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:52)

at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.ja va:1065)

at org.jivesoftware.util.LocaleFilter.doFilter(LocaleFilter.java:65)

at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.ja va:1065)

at org.jivesoftware.util.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingF ilter.java:41)

at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.ja va:1065)

at org.jivesoftware.admin.PluginFilter.doFilter(PluginFilter.java:69)

at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.ja va:1065)

at org.jivesoftware.admin.AuthCheckFilter.doFilter(AuthCheckFilter.java:98)

at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.ja va:1065)

at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:365)

at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:185)

at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)

at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:689)

at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:391)

at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollect ion.java:146)

at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)

at org.mortbay.jetty.Server.handle(Server.java:285)

at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:457)

at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.j ava:751)

at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:500)

at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:209)

at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:357)

at org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:217)

at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:475)

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When I deleted another plug-in (User Service), it worked fine.

FWIW: the plug-in was removed from the installed list when I removed the webchat directory from the plugins directory.

david