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Posted to dev@openwebbeans.apache.org by "Stephen Connolly (JIRA)" <ji...@apache.org> on 2019/06/19 16:29:00 UTC
[jira] [Updated] (OWB-1290) java.lang.ClassNotFoundException:
org.apache.webbeans.proxy.OwbNormalScopeProxy if request scope bean has a
classloader missing the proxy marker
[ https://issues.apache.org/jira/browse/OWB-1290?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Stephen Connolly updated OWB-1290:
----------------------------------
Attachment: Screenshot 2019-06-19 at 17.26.33.png
> java.lang.ClassNotFoundException: org.apache.webbeans.proxy.OwbNormalScopeProxy if request scope bean has a classloader missing the proxy marker
> ------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: OWB-1290
> URL: https://issues.apache.org/jira/browse/OWB-1290
> Project: OpenWebBeans
> Issue Type: Improvement
> Components: Injection and Lookup
> Reporter: Stephen Connolly
> Priority: Major
> Attachments: Screenshot 2019-06-19 at 17.26.33.png
>
>
> In some servlet containers (I'm looking at you [jetty|https://www.eclipse.org/jetty/]) the `HttpServletRequest` class is loaded from a classloader that is a common parent of both the webapp and the server.
> If you are integrating OWB by including the OWB JAR files in the webapp's .war file (as distinct from a server-side integration) then, naturally enough, the classloader of `HttpServletRequest` will not have the `OwbNormalScopeProxy` class... because it shouldn't
> When you then try to inject a `HttpServletRequest`, we get to [https://github.com/apache/openwebbeans/blob/12873ed083df9986e82d2f84a423ea50053672c8/webbeans-impl/src/main/java/org/apache/webbeans/portable/ProviderBasedProducer.java#L56-L61]
> {code:java}
> ClassLoader loader = returnType.getClassLoader();
> if (loader == null)
> {
> loader = WebBeansUtil.getCurrentClassLoader();
> }
> Class<T> proxyClass = proxyFactory.createProxyClass(loader, returnType);
> {code}
> Which will result in a stack trace similar to this:
> {code:java}
> java.lang.ClassNotFoundException: org.apache.webbeans.proxy.OwbNormalScopeProxy
> at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
> at java.lang.ClassLoader.defineClass1(Native Method)
> at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
> at java.lang.ClassLoader.defineClass(ClassLoader.java:642)
> at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at org.apache.webbeans.proxy.Unsafe.defineAndLoadClass(Unsafe.java:121)
> at org.apache.webbeans.proxy.AbstractProxyFactory.createProxyClass(AbstractProxyFactory.java:249)
> at org.apache.webbeans.proxy.AbstractProxyFactory.createProxyClass(AbstractProxyFactory.java:223)
> at org.apache.webbeans.proxy.NormalScopeProxyFactory.createProxyClass(NormalScopeProxyFactory.java:271)
> at org.apache.webbeans.portable.ProviderBasedProducer.produce(ProviderBasedProducer.java:61)
> at org.apache.webbeans.portable.AbstractProducer.produce(AbstractProducer.java:134)
> at org.apache.webbeans.component.AbstractOwbBean.create(AbstractOwbBean.java:122)
> at org.apache.webbeans.context.DependentContext.getInstance(DependentContext.java:68)
> at org.apache.webbeans.context.AbstractContext.get(AbstractContext.java:125)
> at org.apache.webbeans.container.BeanManagerImpl.getReference(BeanManagerImpl.java:813)
> at org.apache.webbeans.container.BeanManagerImpl.getInjectableReference(BeanManagerImpl.java:673)
> at org.apache.webbeans.inject.AbstractInjectable.inject(AbstractInjectable.java:100)
> at org.apache.webbeans.inject.InjectableField.doInjection(InjectableField.java:65)
> at org.apache.webbeans.portable.InjectionTargetImpl.injectFields(InjectionTargetImpl.java:227)
> at org.apache.webbeans.portable.InjectionTargetImpl.inject(InjectionTargetImpl.java:213)
> at org.apache.webbeans.portable.InjectionTargetImpl.inject(InjectionTargetImpl.java:203)
> at org.apache.webbeans.component.AbstractOwbBean.create(AbstractOwbBean.java:126)
> at org.apache.webbeans.component.ManagedBean.create(ManagedBean.java:66)
> at org.apache.webbeans.context.creational.BeanInstanceBag.create(BeanInstanceBag.java:76)
> at org.apache.webbeans.context.AbstractContext.getInstance(AbstractContext.java:159)
> at org.apache.webbeans.context.AbstractContext.get(AbstractContext.java:125)
> at org.apache.webbeans.intercept.NormalScopedBeanInterceptorHandler.getContextualInstance(NormalScopedBeanInterceptorHandler.java:101)
> at org.apache.webbeans.intercept.RequestScopedBeanInterceptorHandler.getContextualInstance(RequestScopedBeanInterceptorHandler.java:76)
> at org.apache.webbeans.intercept.NormalScopedBeanInterceptorHandler.get(NormalScopedBeanInterceptorHandler.java:71)
> {code}
> It seems like there should be some validation that the marker interface is available from the loader class and then fall back to `WebBeansUtil.getCurrentClassLoader()`... (or maybe just always use that!)
>
>
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