java.lang.NullPointerException: null at org.apache.myfaces.webapp.Jsp21FacesInitializer.initContainerIntegration(Jsp21FacesInitializer.java:62) ~[myfaces-bundle-2.2.10.jar!/:2.2.10]

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    Root Cause Analysis

    1. java.lang.NullPointerException

      null at org.apache.myfaces.webapp.Jsp21FacesInitializer.initContainerIntegration(Jsp21FacesInitializer.java:62) ~[myfaces-bundle-2.2.10.jar!/:2.2.10]

      at org.apache.myfaces.webapp.AbstractFacesInitializer.initFaces()
    2. Impl
      StartupServletContextListener.contextInitialized
      1. org.apache.myfaces.webapp.AbstractFacesInitializer.initFaces(AbstractFacesInitializer.java:172)[myfaces-bundle-2.2.10.jar!/:2.2.10]
      2. org.apache.myfaces.webapp.StartupServletContextListener.contextInitialized(StartupServletContextListener.java:121)[myfaces-bundle-2.2.10.jar!/:2.2.10]
      2 frames
    3. Undertow Servlet
      DeploymentManagerImpl.deploy
      1. io.undertow.servlet.core.ApplicationListeners.contextInitialized(ApplicationListeners.java:187)[undertow-servlet-1.3.23.Final.jar!/:1.3.23.Final]
      2. io.undertow.servlet.core.DeploymentManagerImpl.deploy(DeploymentManagerImpl.java:198)[undertow-servlet-1.3.23.Final.jar!/:1.3.23.Final]
      2 frames
    4. Spring Boot
      EmbeddedWebApplicationContext.onRefresh
      1. org.springframework.boot.context.embedded.undertow.UndertowEmbeddedServletContainerFactory.createDeploymentManager(UndertowEmbeddedServletContainerFactory.java:390)[spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
      2. org.springframework.boot.context.embedded.undertow.UndertowEmbeddedServletContainerFactory.getEmbeddedServletContainer(UndertowEmbeddedServletContainerFactory.java:224)[spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
      3. org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:164)[spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
      4. org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:134)[spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
      4 frames
    5. Spring Context
      AbstractApplicationContext.refresh
      1. org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:535)[spring-context-4.3.2.RELEASE.jar!/:4.3.2.RELEASE]
      1 frame
    6. Spring Boot
      SpringApplication.run
      1. org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122)[spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
      2. org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759)[spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
      3. org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:369)[spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
      4. org.springframework.boot.SpringApplication.run(SpringApplication.java:313)[spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
      5. org.springframework.boot.SpringApplication.run(SpringApplication.java:1185)[spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
      6. org.springframework.boot.SpringApplication.run(SpringApplication.java:1174)[spring-boot-1.4.0.RELEASE.jar!/:1.4.0.RELEASE]
      6 frames
    7. org.joinfaces.example
      JoinFacesExampleApplication.main
      1. org.joinfaces.example.JoinFacesExampleApplication.main(JoinFacesExampleApplication.java:10)[classes!/:2.1.4-SNAPSHOT]
      1 frame
    8. Java RT
      Method.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)[na:1.8.0_101]
      2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)[na:1.8.0_101]
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)[na:1.8.0_101]
      4. java.lang.reflect.Method.invoke(Method.java:498)[na:1.8.0_101]
      4 frames
    9. Spring Boot Loader
      JarLauncher.main
      1. org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48)[joinfaces-example-2.1.4-SNAPSHOT.jar:2.1.4-SNAPSHOT]
      2. org.springframework.boot.loader.Launcher.launch(Launcher.java:87)[joinfaces-example-2.1.4-SNAPSHOT.jar:2.1.4-SNAPSHOT]
      3. org.springframework.boot.loader.Launcher.launch(Launcher.java:50)[joinfaces-example-2.1.4-SNAPSHOT.jar:2.1.4-SNAPSHOT]
      4. org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:58)[joinfaces-example-2.1.4-SNAPSHOT.jar:2.1.4-SNAPSHOT]
      4 frames