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https://issues.apache.org/jira/browse/TAP5-1837?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13280189#comment-13280189
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Matthias Nöbl commented on TAP5-1837:
-------------------------------------
With Tapestry 5.3.3 I got the same error using an external Spring context,
because object.getServiceInterface() returned null. This was because I defined
an abstract bean without the class attribute (which works in Spring). After
adding the class attribute the NPE disappeared, but obviously in the example
the class attribute is there ...
> NPE on registry startup when using tapestry.use-external-spring-context in
> 5.3.2
> --------------------------------------------------------------------------------
>
> Key: TAP5-1837
> URL: https://issues.apache.org/jira/browse/TAP5-1837
> Project: Tapestry 5
> Issue Type: Bug
> Components: tapestry-core, tapestry-spring
> Affects Versions: 5.3.2
> Reporter: Adam
> Attachments: t5sandbox.tar.gz
>
>
> When I use a certain kind of bean in my applicationContext.xml, an NPE
> occurs. It only happens with "tapestry.use-external-spring-context" and the
> spring ContextLoaderListener. See attached project.
> java.lang.NullPointerException
> at
> org.apache.tapestry5.ioc.internal.RegistryImpl$2.accept(RegistryImpl.java:273)
> at
> org.apache.tapestry5.ioc.internal.RegistryImpl$2.accept(RegistryImpl.java:270)
> at org.apache.tapestry5.func.F$25.accept(F.java:623)
> at org.apache.tapestry5.func.LazyFilter.next(LazyFilter.java:37)
> at org.apache.tapestry5.func.LazyFlow.resolve(LazyFlow.java:78)
> at org.apache.tapestry5.func.LazyFlow.isEmpty(LazyFlow.java:61)
> at
> org.apache.tapestry5.ioc.internal.RegistryImpl.isContributionForExistentService(RegistryImpl.java:287)
> at
> org.apache.tapestry5.ioc.internal.RegistryImpl.validateContributeDefs(RegistryImpl.java:241)
> at
> org.apache.tapestry5.ioc.internal.RegistryImpl.<init>(RegistryImpl.java:202)
> at
> org.apache.tapestry5.ioc.RegistryBuilder.build(RegistryBuilder.java:177)
> at
> org.apache.tapestry5.internal.TapestryAppInitializer.createRegistry(TapestryAppInitializer.java:200)
> at org.apache.tapestry5.TapestryFilter.init(TapestryFilter.java:109)
> at
> org.mortbay.jetty.servlet.FilterHolder.doStart(FilterHolder.java:97)
> at
> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
> at
> org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:653)
> at org.mortbay.jetty.servlet.Context.startContext(Context.java:140)
> at
> org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1239)
> at
> org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
> at
> org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:466)
> at
> org.mortbay.jetty.plugin.Jetty6PluginWebAppContext.doStart(Jetty6PluginWebAppContext.java:124)
> at
> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
> at
> org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152)
> at
> org.mortbay.jetty.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:156)
> at
> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
> at
> org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152)
> at
> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
> at
> org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
> at org.mortbay.jetty.Server.doStart(Server.java:222)
> at
> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
> at
> org.mortbay.jetty.plugin.Jetty6PluginServer.start(Jetty6PluginServer.java:132)
> at
> org.mortbay.jetty.plugin.AbstractJettyMojo.startJetty(AbstractJettyMojo.java:441)
> at
> org.mortbay.jetty.plugin.AbstractJettyMojo.execute(AbstractJettyMojo.java:383)
> at
> org.mortbay.jetty.plugin.AbstractJettyRunMojo.execute(AbstractJettyRunMojo.java:210)
> at
> org.mortbay.jetty.plugin.Jetty6RunMojo.execute(Jetty6RunMojo.java:184)
> at
> org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
> at
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
> at
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
> at
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
> at
> org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
> at
> org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
> at
> org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
> at
> org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
> at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:319)
> at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
> at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
> at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
> at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
> 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.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
> at
> org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
> at
> org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
> at
> org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
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