![](/img/trans.png)
[英]java.lang.NullPointerException when trying to rendering view ShoppingCart.xhtml with JSF, Primefaces 3.5 and Glassfish 3.1.2.2
[英]Error Rendering View[/login.xhtml]: java.lang.NullPointerException on starting server PF10
環境:
從 Primefaces 6.2 遷移到 10。
我在使用應用程序加載服務器時有一個 NPE,在渲染 login.xhtml 時它會拋出 java.lang.NullPoinerException。 我在錯誤日志中找不到任何線索。 知道問題出在哪里嗎?
登錄.xhtml
<!DOCTYPE html>
<html lang="#{localeBean.locale}"
xmlns:f="http://xmlns.jcp.org/jsf/core"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:p="http://primefaces.org/ui">
<h:head>
<title>#{msgs.appcode}</title>
</h:head>
<h:body>
<h:form id="frmLogin">
<p:inputText id="j_username" placeholder="#{msgs.user}"
value="#{loginBean.username}"
autocomplete="off">
</p:inputText>
<p:inputText id="j_password" type="password"
placeholder="#{msgs.password}"
value="#{loginBean.password}"
autocomplete="off"
converter="charArrayConverter"/>
<p:commandButton id="btnButton"
value="#{msgs.login}"
action="#{loginBean.login}"/>
</h:form>
</h:body>
</html>
登錄Bean.java
@Named("loginBean")
@RequestScoped
public class LoginBean implements Serializable {
private static final long serialVersionUID = 1689411186706761477L;
@Inject
Logger logger;
@Inject
private HttpServletRequest request;
private String username;
private char[] password;
private Messages msgs;
@Inject
@ManagedProperty(value = "#{sessionBean}")
private SessionBean sessionBean;
public LoginBean() {
}
@PostConstruct
private void init() {
logger.info("loginBean");
}
public void login() {
try {
if (request.getUserPrincipal() == null) {
request.login(username, String.valueOf(password));
}
} catch (ServletException ex) {
logger.error("Error login failed", ex);
navigate(Pages.LOGINERROR.getPage());
return;
}
navigate(Pages.INDEX.getPage());
}
...
錯誤日志
21:36:43,292 SEVERE [javax.enterprise.resource.webcontainer.jsf.application] (default task-1) Error Rendering View[/login.xhtml]: java.lang.NullPointerException
at com.sun.jsf-impl@2.3.14.SP02//com.sun.faces.cdi.ManagedPropertyProducer.evaluateExpressionGet(ManagedPropertyProducer.java:87)
at com.sun.jsf-impl@2.3.14.SP02//com.sun.faces.cdi.ManagedPropertyProducer.lambda$new$0(ManagedPropertyProducer.java:60)
at com.sun.jsf-impl@2.3.14.SP02//com.sun.faces.cdi.CdiProducer.create(CdiProducer.java:105)
at com.sun.jsf-impl@2.3.14.SP02//com.sun.faces.cdi.ManagedPropertyProducer.create(ManagedPropertyProducer.java:38)
at org.jboss.weld.core@3.1.5.Final//org.jboss.weld.contexts.unbound.DependentContextImpl.get(DependentContextImpl.java:64)
at org.jboss.weld.core@3.1.5.Final//org.jboss.weld.bean.ContextualInstanceStrategy$DefaultContextualInstanceStrategy.get(ContextualInstanceStrategy.java:100)
at org.jboss.weld.core@3.1.5.Final//org.jboss.weld.bean.ContextualInstance.get(ContextualInstance.java:50)
at org.jboss.weld.core@3.1.5.Final//org.jboss.weld.manager.BeanManagerImpl.getReference(BeanManagerImpl.java:694)
at org.jboss.weld.core@3.1.5.Final//org.jboss.weld.manager.BeanManagerImpl.getInjectableReference(BeanManagerImpl.java:794)
at org.jboss.weld.core@3.1.5.Final//org.jboss.weld.injection.FieldInjectionPoint.inject(FieldInjectionPoint.java:92)
at org.jboss.weld.core@3.1.5.Final//org.jboss.weld.util.Beans.injectBoundFields(Beans.java:336)
at org.jboss.weld.core@3.1.5.Final//org.jboss.weld.util.Beans.injectFieldsAndInitializers(Beans.java:347)
...
21:36:43,298 ERROR [io.undertow.request] (default task-1) UT005023: Exception handling request to /app/login.xhtml: java.lang.RuntimeException: javax.servlet.ServletException
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.security.ServletFormAuthenticationMechanism.servePage(ServletFormAuthenticationMechanism.java:172)
at io.undertow.core@2.2.4.Final//io.undertow.security.impl.FormAuthenticationMechanism.sendChallenge(FormAuthenticationMechanism.java:183)
at io.undertow.core@2.2.4.Final//io.undertow.security.impl.SecurityContextImpl$ChallengeSender.transition(SecurityContextImpl.java:301)
at io.undertow.core@2.2.4.Final//io.undertow.security.impl.SecurityContextImpl$ChallengeSender.transition(SecurityContextImpl.java:319)
at io.undertow.core@2.2.4.Final//io.undertow.security.impl.SecurityContextImpl$ChallengeSender.access$300(SecurityContextImpl.java:284)
...
Caused by: javax.servlet.ServletException
at javax.faces.api@3.0.0.SP04//javax.faces.webapp.FacesServlet.executeLifecyle(FacesServlet.java:725)
at javax.faces.api@3.0.0.SP04//javax.faces.webapp.FacesServlet.service(FacesServlet.java:451)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:81)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:68)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
at io.undertow.core@2.2.4.Final//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.RedirectDirHandler.handleRequest(RedirectDirHandler.java:68)
at io.undertow.core@2.2.4.Final//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.core@2.2.4.Final//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:251)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.ServletInitialHandler.dispatchToPath(ServletInitialHandler.java:186)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.spec.RequestDispatcherImpl.forwardImpl(RequestDispatcherImpl.java:227)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.spec.RequestDispatcherImpl.forwardImplSetup(RequestDispatcherImpl.java:149)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.spec.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:111)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.security.ServletFormAuthenticationMechanism.servePage(ServletFormAuthenticationMechanism.java:170)
... 48 more
Caused by: java.lang.NullPointerException
at com.sun.jsf-impl@2.3.14.SP02//com.sun.faces.cdi.ManagedPropertyProducer.evaluateExpressionGet(ManagedPropertyProducer.java:87)
at com.sun.jsf-impl@2.3.14.SP02//com.sun.faces.cdi.ManagedPropertyProducer.lambda$new$0(ManagedPropertyProducer.java:60)
at com.sun.jsf-impl@2.3.14.SP02//com.sun.faces.cdi.CdiProducer.create(CdiProducer.java:105)
at com.sun.jsf-impl@2.3.14.SP02//com.sun.faces.cdi.ManagedPropertyProducer.create(ManagedPropertyProducer.java:38)
at org.jboss.weld.core@3.1.5.Final//org.jboss.weld.contexts.unbound.DependentContextImpl.get(DependentContextImpl.java:64)
資源管理器的上下文路徑錯誤
Context Path:
/app
Servlet Path:
/index.xhtml
Path Info:
null
Query String:
null
Stack Trace:
javax.servlet.ServletException
at javax.faces.api@3.0.0.SP04//javax.faces.webapp.FacesServlet.executeLifecyle(FacesServlet.java:725)
at javax.faces.api@3.0.0.SP04//javax.faces.webapp.FacesServlet.service(FacesServlet.java:451)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129)
at io.undertow.websocket@2.2.4.Final//io.undertow.websockets.jsr.JsrWebSocketFilter.doFilter(JsrWebSocketFilter.java:173)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at io.opentracing.contrib.opentracing-jaxrs2//io.opentracing.contrib.jaxrs2.server.SpanFinishingFilter.doFilter(SpanFinishingFilter.java:52)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at deployment.app.war//es.app.light.business.security.boundary.WebAuthenticator.doFilter(WebAuthenticator.java:81)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:68)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
at org.wildfly.extension.undertow@22.0.1.Final//org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
at io.undertow.core@2.2.4.Final//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.RedirectDirHandler.handleRequest(RedirectDirHandler.java:68)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:117)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
at io.undertow.core@2.2.4.Final//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.core@2.2.4.Final//io.undertow.security.handlers.AuthenticationConstraintHandler.handleRequest(AuthenticationConstraintHandler.java:53)
at io.undertow.core@2.2.4.Final//io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.security.ServletSecurityConstraintHandler.handleRequest(ServletSecurityConstraintHandler.java:59)
at io.undertow.core@2.2.4.Final//io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
at io.undertow.core@2.2.4.Final//io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
at io.undertow.core@2.2.4.Final//io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
at io.undertow.core@2.2.4.Final//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at org.wildfly.extension.undertow@22.0.1.Final//org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
at io.undertow.core@2.2.4.Final//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at org.wildfly.extension.undertow@22.0.1.Final//org.wildfly.extension.undertow.deployment.GlobalRequestControllerHandler.handleRequest(GlobalRequestControllerHandler.java:68)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.SendErrorPageHandler.handleRequest(SendErrorPageHandler.java:52)
at io.undertow.core@2.2.4.Final//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:269)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:78)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:133)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:130)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
at org.wildfly.extension.undertow@22.0.1.Final//org.wildfly.extension.undertow.security.SecurityContextThreadSetupAction.lambda$create$0(SecurityContextThreadSetupAction.java:105)
at org.wildfly.extension.undertow@22.0.1.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1530)
at org.wildfly.extension.undertow@22.0.1.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1530)
at org.wildfly.extension.undertow@22.0.1.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1530)
at org.wildfly.extension.undertow@22.0.1.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1530)
at org.wildfly.extension.undertow@22.0.1.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1530)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:249)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:78)
at io.undertow.servlet@2.2.4.Final//io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:99)
at io.undertow.core@2.2.4.Final//io.undertow.server.Connectors.executeRootHandler(Connectors.java:387)
at io.undertow.core@2.2.4.Final//io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:841)
at org.jboss.threads@2.4.0.Final//org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
at org.jboss.threads@2.4.0.Final//org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1990)
at org.jboss.threads@2.4.0.Final//org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1486)
at org.jboss.threads@2.4.0.Final//org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1377)
at org.jboss.xnio@3.8.4.Final//org.xnio.XnioWorker$WorkerThreadFactory$1$1.run(XnioWorker.java:1280)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.lang.NullPointerException
at com.sun.jsf-impl@2.3.14.SP02//com.sun.faces.cdi.ManagedPropertyProducer.evaluateExpressionGet(ManagedPropertyProducer.java:87)
at com.sun.jsf-impl@2.3.14.SP02//com.sun.faces.cdi.ManagedPropertyProducer.lambda$new$0(ManagedPropertyProducer.java:60)
at com.sun.jsf-impl@2.3.14.SP02//com.sun.faces.cdi.CdiProducer.create(CdiProducer.java:105)
at com.sun.jsf-impl@2.3.14.SP02//com.sun.faces.cdi.ManagedPropertyProducer.create(ManagedPropertyProducer.java:38)
at org.jboss.weld.core@3.1.5.Final//org.jboss.weld.contexts.unbound.DependentContextImpl.get(DependentContextImpl.java:64)
SessionBean.java
@Named
@SessionScoped
public class SessionBean implements Serializable {
...
private Logger logger;
@Inject
private UserProvider userPdr;
@Inject
@ManagedProperty(value = "#{localeBean}")
private LocaleBean localeB;
...
private User user;
public SessionBean() {
logger = LoggerFactory.getLogger(this.getClass());
}
@PostConstruct
private void init() {
try {
dealWithSession();
if(user == null) {
user = getUser();
}
} catch (Exception e) {
logger.error("Exception init {0}", e.getMessage());
}
}
...
LocaleBean.java
@Named
@SessionScoped
public class LocaleBean implements Serializable {
private static final long serialVersionUID = 1511093313205693034L;
private Locale locale;
private final List<Locale> locales = new ArrayList<>();
Logger logger;
@PostConstruct
public void init() {
logger = LoggerFactory.getLogger(this.getClass());
try {
locales.add(new Locale("es", "ES"));
locales.add(new Locale("ca", "ES"));
Locale userLocale = FacesContext.getCurrentInstance().getExternalContext().getRequestLocale();
if (locales.contains(userLocale)) {
locale = locales.get(locales.indexOf(userLocale));
} else {
locale = locales.get(0);
}
} catch (Exception e) {
logger.error("Exception: {0}", e.getMessage());
}
}
...
這是與 PF10 中的 pu:menu 和 p:menu 的自定義主題不兼容,因此我不得不將主題更新為 PF10 兼容版本。
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