Ok, just realized that I did overwrote the default excludes. If I do append 
the toplink package to your list, everything works:

<constant name="struts.convention.exclude.packages" 
value="org.apache.struts.*,org.apache.struts2.*,org.springframework.web.struts.*,org.springframework.web.struts2.*,org.hibernate.*,oracle.toplink.*"/>

I played with struts.convention.action.packages, but without success. Is there 
a way to give a root package where the plugin should scan exclusively (IMHO 
that is nicer than excluding everything else...)

com.mycomp.project.* for example....

ciao,
        Piero

Am Samstag, 12. Januar 2008 18:31:18 schrieb Piero Sartini:
> Hello Brian,
>
> thanks for your great work!
> After playing around with the plugin I found an issue in combination with
> toplink-essentials. Not sure, but it seems related to the classpath
> scanning.
>
> Trying
> struts.convention.exclude.packages=oracle.toplink.essentials.transaction
> the error remains, but with different class:
> org.apache.struts2.views.velocity.components.SetDirective
>
> So I think there is some class loading going on in toplink that conflicts
> with yours? If I remove the toplink dependency (2.0-36), everything works
> fine. If I remove the convention plugin, it works fine as well..
>
>       Piero
>
>
> Stacktrace:
> 12.01.2008 17:21:39 org.apache.catalina.core.StandardContext filterStart
> SCHWERWIEGEND: Exception starting filter action2
> java.lang.IllegalArgumentException: Could not load class
> [oracle.toplink.essentials.transaction.JTASynchronizationListener]
>         at
> org.apache.struts2.convention.ClassClassLoaderResolver.prepare(ClassClassLo
>aderResolver.java:198) at
> org.apache.struts2.convention.ClassClassLoaderResolver.prepare(ClassClassLo
>aderResolver.java:51) at
> org.apache.struts2.convention.AbstractClassLoaderResolver.addIfMatching(Abs
>tractClassLoaderResolver.java:447) at
> org.apache.struts2.convention.AbstractClassLoaderResolver.loadResourcesInJa
>r(AbstractClassLoaderResolver.java:401) at
> org.apache.struts2.convention.AbstractClassLoaderResolver.findInDirectory(A
>bstractClassLoaderResolver.java:276) at
> org.apache.struts2.convention.AbstractClassLoaderResolver.find(AbstractClas
>sLoaderResolver.java:154) at
> org.apache.struts2.convention.AbstractClassLoaderResolver.findByLocators(Ab
>stractClassLoaderResolver.java:243) at
> org.apache.struts2.convention.PackageBasedActionConfigBuilder.findActionsUs
>ingPackageLocators(PackageBasedActionConfigBuilder.java:185) at
> org.apache.struts2.convention.PackageBasedActionConfigBuilder.buildActionCo
>nfigs(PackageBasedActionConfigBuilder.java:165) at
> org.apache.struts2.convention.ClasspathConfigurationProvider.loadPackages(C
>lasspathConfigurationProvider.java:74) at
> com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(De
>faultConfiguration.java:190) at
> com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(Config
>urationManager.java:55) at
> org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatch
>er.java:370) at
> org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:423) at
> org.apache.struts2.dispatcher.FilterDispatcher.init(FilterDispatcher.java:2
>11) at
> org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilte
>rConfig.java:275) at
> org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFi
>lterConfig.java:397) at
> org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterCo
>nfig.java:108) at
> org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3
>696) at
> org.apache.catalina.core.StandardContext.start(StandardContext.java:4343)
>         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.deployDescriptor(HostConfig.java:626
>) at
> org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:511)
>         at
> org.apache.catalina.startup.HostConfig.check(HostConfig.java:1220) at
> sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:3
>9) at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImp
>l.java:25) at java.lang.reflect.Method.invoke(Method.java:597)
>         at
> org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:29
>7) at
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanSe
>rverInterceptor.java:836) at
> com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:761)
>         at
> org.apache.catalina.manager.ManagerServlet.check(ManagerServlet.java:1458)
>         at
> org.apache.catalina.manager.ManagerServlet.deploy(ManagerServlet.java:820)
>         at
> org.apache.catalina.manager.ManagerServlet.doGet(ManagerServlet.java:348)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
>         at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applicatio
>nFilterChain.java:290) at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterC
>hain.java:206) at
> org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilte
>r.java:196) at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applicatio
>nFilterChain.java:235) at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterC
>hain.java:206) at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.j
>ava:233) at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.j
>ava:175) at
> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBas
>e.java:525) at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:12
>8) at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:10
>2) at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.jav
>a:109) at
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:263)
>         at
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
>         at
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Htt
>p11Protocol.java:584) at
> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
>         at java.lang.Thread.run(Thread.java:619)
> Caused by: java.lang.NoClassDefFoundError:
> javax/transaction/Synchronization at
> java.lang.ClassLoader.defineClass1(Native Method)
>         at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
>         at
> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
>         at
> org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassL
>oader.java:1817) at
> org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.ja
>va:872) at
> org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.ja
>va:1325) at
> org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.ja
>va:1204) at
> org.apache.struts2.convention.ClassClassLoaderResolver.prepare(ClassClassLo
>aderResolver.java:194) ... 53 more
>
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