I had no luck with this on the users mail list ( [email protected] ) maybe here its a better fit for this email
Hello, I have a problem with the wicket - spring integration in wicket 1.4 rc2 , i think its similar to https://issues.apache.org/jira/browse/WICKET-1848 The use case is like this : I have 2 simple applications running in a jetty server. To keep things simple , i added the spring and wicket libs to the common classpath (so the following libs: cglib-nodep-2.1_3.jar, commons-logging-1.1.jar , log4j-1.2.13.jar , slf4j-api-1.5.0.jar , slf4j-log4j12-1.5.0.jar , spring-2.5.6.jar , wicket-1.4-rc2.jar , wicket-ioc-1.4-rc2.jar , wicket-spring-1.4-rc2.jar go into $JETTY_HOME/lib/ext/extra-libs ) That helps me keep the size of the wars lower. I think the problem is that by using this common classpath , the wicket applications share -some- context.More to the point , I don't think that LazyInitProxyFactory is thread safe , or maybe application safe. It appears that bean ids from one application are visible in another application thats deployed on the same server. As an example : I can define a bean with the id 'simpleService' in the first application. But when I try to define another bean in the second application with the same id - still 'simpleService' but a different interface- I get the following error: GET, protocol = HTTP/1.1, requestURL = http://localhost:8080/, contentType = null, contentLength = -1, contextPath = , pathInfo = null, requestURI = /, servletPath = /, pathTranslated = null] 2009-02-24 15:08:04,803 ERROR org.apache.wicket.RequestCycle - Can't instantiate page using constructor public com.asf.test2.web.Index() org.apache.wicket.WicketRuntimeException: Can't instantiate page using constructor public com.asf.test2.web.Index() at org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:172) at org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:58) at org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.newPage(BookmarkablePageRequestTarget.java:299) at org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.getPage(BookmarkablePageRequestTarget.java:321) at org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.processEvents(BookmarkablePageRequestTarget.java:234) at org.apache.wicket.request.AbstractRequestCycleProcessor.processEvents(AbstractRequestCycleProcessor.java:92) at org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1192) at org.apache.wicket.RequestCycle.step(RequestCycle.java:1271) at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1370) at org.apache.wicket.RequestCycle.request(RequestCycle.java:501) at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:455) at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:288) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1115) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:361) 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:766) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:417) at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:199) 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:324) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:535) at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:865) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:538) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409) at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:522) Caused by: java.lang.reflect.InvocationTargetException 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:494) at org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:153) ... 28 more Caused by: java.lang.RuntimeException: error while injecting object [[Page class = com.asf.test2.web.Index, id = 0, version = 0]] of type [com.asf.test2.web.Index] at org.apache.wicket.injection.Injector.inject(Injector.java:118) at org.apache.wicket.injection.ConfigurableInjector.inject(ConfigurableInjector.java:39) at org.apache.wicket.injection.ComponentInjector.onInstantiation(ComponentInjector.java:52) at org.apache.wicket.Application.notifyComponentInstantiationListeners(Application.java:1027) at org.apache.wicket.Component.<init>(Component.java:911) at org.apache.wicket.MarkupContainer.<init>(MarkupContainer.java:113) at org.apache.wicket.MarkupContainer.<init>(MarkupContainer.java:105) at org.apache.wicket.Page.<init>(Page.java:236) at org.apache.wicket.markup.html.WebPage.<init>(WebPage.java:185) at com.asf.test2.web.Index.<init>(Index.java:20) ... 33 more Caused by: java.lang.IllegalArgumentException at sun.reflect.UnsafeObjectFieldAccessorImpl.set(UnsafeObjectFieldAccessorImpl.java:63) at java.lang.reflect.Field.set(Field.java:656) at org.apache.wicket.injection.Injector.inject(Injector.java:112) ... 42 more Another example is that if its indeed the same bean injected - lets say it comes from a jar in the classpath - i get the same object in both applications , even though the two don't have anything in common , except for the bean id ( just for the example's sake, thats what toString() shows: 'org.apache.wicket.proxy.lazyinitproxyfactory$jdkhand...@1469658' ). I don't know if its a bug or not , to me this all looks a bit buggy. I have a testcase if anyones interested in taking a look at this. Also , a very important aspect is that this does not happen when i pack everyhting in one big war - but the size difference is pretty big - i'm going from 300KB to 5MB on each war. Thanks, Alex
