Re: [xwiki-users] NoSuchMethodError for injected DocumentAccessBridge

16 Oct 2009

On Thu, Oct 15, 2009 at 19:31, breeden &lt;dbreeden(a)stottlerhenke.com&gt; wrote:
...

 Here's what I get when I save a page with
 def myComponent =
 com.xpn.xwiki.web.Utils.getComponent(com.shai.xwiki.MyComponent.class);
 myComponent.myFun("Main.JohnDoe");

 Detailed information:

    Error number 0 in 11: Uncaught exception
 Wrapped Exception:
org.xwiki.bridge.DocumentAccessBridge.getProperty(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
 com.xpn.xwiki.XWikiException: Error number 0 in 11: Uncaught exception
 Wrapped Exception:
org.xwiki.bridge.DocumentAccessBridge.getProperty(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;

You component expects

Object getProperty(String documentName, String propertyName);

but it's

String getProperty(String documentName, String propertyName);

since 2.0 (maybe 2.0RC1 or RC2 i don't remember).

Maybe you built this component with an older version of the api.

...
         at
com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:238)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:115)
        at
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
        at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
        at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
        at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
        at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:502)
        at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
        at
com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:155)
        at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1148)
        at
com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:295)
        at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1148)
        at
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:112)
        at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1148)
        at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:387)
        at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
        at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
        at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
        at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:417)
        at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:334)
        at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:126)
        at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:109)
        at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1148)
        at com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:68)
        at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1148)
        at
com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:295)
        at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1148)
        at
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:112)
        at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1148)
        at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:387)
        at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
        at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
        at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
        at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:417)
        at
org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
        at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
        at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
        at org.mortbay.jetty.Server.handle(Server.java:326)
        at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:534)
        at
org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:879)
        at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:747)
        at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)
        at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
        at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
        at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:520)

 Wrapped Exception:

 java.lang.NoSuchMethodError:
org.xwiki.bridge.DocumentAccessBridge.getProperty(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
        at
com.shai.xwiki.internal.DefaultMyComponent.announce(DefaultMyComponent.java:49)
        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:585)
        at
org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite$PojoCachedMethodSiteNoUnwrapNoCoerce.invoke(PojoMetaMethodSite.java:229)
        at
org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite.call(PojoMetaMethodSite.java:52)
        at
org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
        at LoggingEventListener.onEvent(Script6.groovy:41)
        at
org.xwiki.observation.internal.DefaultObservationManager.notify(DefaultObservationManager.java:262)
        at
org.xwiki.observation.internal.DefaultObservationManager.notify(DefaultObservationManager.java:236)
        at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1336)
        at com.xpn.xwiki.web.SaveAction.save(SaveAction.java:176)
        at com.xpn.xwiki.web.SaveAction.action(SaveAction.java:193)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:213)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:115)
        at
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
        at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
        at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
        at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
        at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:502)
        at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
        at
com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:155)
        at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1148)
        at
com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:295)
        at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1148)
        at
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:112)
        at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1148)
        at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:387)
        at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
        at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
        at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
        at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:417)
        at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:334)
        at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:126)
        at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:109)
        at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1148)
        at com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:68)
        at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1148)
        at
com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:295)
        at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1148)
        at
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:112)
        at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1148)
        at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:387)
        at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
        at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
        at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
        at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:417)
        at
org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
        at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
        at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
        at org.mortbay.jetty.Server.handle(Server.java:326)
        at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:534)
        at
org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:879)
        at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:747)
        at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)
        at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
        at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
        at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:520)

 Thanks!
 ~David

 tmortagne (via Nabble) wrote:
  Hi David,

 On Wed, Oct 14, 2009 at 22:17, breeden <[hidden email]
 <http://n2.nabble.com/user/SendEmail.jtp?type=node&node=3829043&i=0>>
 wrote:

 Hi,

 I'm writing a component that accesses the XWiki data model when  document
  updates occur.  I have a few questions, but will
post distinct  threads for
  them.  I apologize for the clutter.

 I found the API for DocumentAccessBridge at

 http://maven.xwiki.org/releases/org/xwiki/platform/xwiki-core-bridge/2.0/.

  My code looks like:

 @Requirement
 private DocumentAccessBridge _documentAccessBridge;

 public void myFun(String documentName) {

        String description = null;
        try {
                description =  _documentAccessBridge.getProperty(documentName,
  "Main.MyClass",
"description").toString();
        }
        catch(Exception e) {
                e.printStackTrace();
        }

        // ...
 }

 I expect this to get the description of the first object of type  MyClass in
  the given document, but instead I get a
NoSuchMethodError for the  call to
  getProperty.  I have xwiki-core-bridge-2.0.jar in
my WEB-INF\lib  directory;
  why might this happen? 
 Could you give use the whole stack trace error.

 Thanks,
 David Breeden
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Re: [xwiki-users] NoSuchMethodError for injected DocumentAccessBridge