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From Berner Martin <Martin.Ber...@qualitasag.ch>
Subject LazyRealm and CDI dosent work correctly under 1.7.1
Date Mon, 22 Sep 2014 08:50:56 GMT
Hi,
Don't know if this is a Bug und if, where to place.
I Use the LazyRealm with CDI to use a Realm from the CDI context of the Application.
Romain made a Fix to the LazyRealm to address the Situation, where CDI context isn't present
at startup. (thanks @Romain)
Now it's possible to start a TomEE with App deployed. Starting up works correct.
I'm a bit surprised that I reach the "instanc" Function of LazyRealm tree times.

First time:
LazyRealm.instance() line: 106
LazyRealm.initInternal() line: 134
LazyRealm(LifecycleBase).init() line: 102
LazyRealm(LifecycleBase).start() line: 139

è WebBeansContext is Null

Second time:
LazyRealm.instance() line: 106
LazyRealm.startInternal() line: 142
LazyRealm(LifecycleBase).start() line: 150

è WebBeansContext still Null

third time:
LazyRealm.instance() line: 106
LazyRealm.stopInternal() line: 150
LazyRealm(LifecycleBase).stop() line: 232

è WebBeansContext isn't null and bm.getReference returns the correct Bean from CDI context.


But When TomEE is running and I deploy my webapp then  webBeansContext is not null at first
time. Problem is, that bm.getRefereance throws a NullPointerException than:
org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/MSheepWeb]]
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
        at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
        at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
        at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:649)
        at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1083)
        at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:553)
        at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1671)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:301)
        at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
        at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
        at org.apache.catalina.manager.ManagerServlet.check(ManagerServlet.java:1485)
        at org.apache.catalina.manager.HTMLManagerServlet.upload(HTMLManagerServlet.java:286)
        at org.apache.catalina.manager.HTMLManagerServlet.doPost(HTMLManagerServlet.java:206)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
        at org.apache.catalina.filters.CsrfPreventionFilter.doFilter(CsrfPreventionFilter.java:213)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
        at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
        at org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
        at org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:44)
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:610)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
        at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
        at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)
        at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)
        at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
        at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.catalina.LifecycleException: Failed to initialize component [org.apache.tomee.catalina.realm.LazyRealm@3f6b9abb]
        at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:106)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:139)
        at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5373)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
        ... 45 more
Caused by: java.lang.NullPointerException: bean parameter can not be null
        at org.apache.webbeans.util.Asserts.assertNotNull(Asserts.java:50)
        at org.apache.webbeans.container.BeanManagerImpl.getReference(BeanManagerImpl.java:682)
        at org.apache.tomee.catalina.realm.LazyRealm.instance(LazyRealm.java:114)
        at org.apache.tomee.catalina.realm.LazyRealm.initInternal(LazyRealm.java:134)
        at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102)
        ... 48 more

I compile my Own LazyRealm simple catch the NPE from bm.getReference and returning null witch
solves the Problem for the Moment:

                    } else {
                        final WebBeansContext webBeansContext = WebBeansContext.currentInstance();
                        if (webBeansContext == null) {
                            return null; // too early to have a cdi bean, skip these methods
- mainly init() but @PostConstruct works then
                        }
                        final BeanManager bm = webBeansContext.getBeanManagerImpl();
                        final Set<Bean<?>> beans = bm.getBeans(clazz);
                        final Bean<?> bean = bm.resolve(beans);
                        creationalContext = bm.createCreationalContext(null);
                        try {
                           instance = bm.getReference(bean, clazz, creationalContext);
                        } catch (NullPointerException npe) {
                           return null;
                        }
                    }


Best Regards
Martin Berner

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