Ask Questions and Find Answers
Important:
Ask is now read-only. You can review any existing questions and answers, but not add anything new.
But - don't panic! While ask is no more, we've replaced it with discuss - the new Liferay Discussion Forum! Read more here here or just visit the site here:
discuss.liferay.com
Injection on managed bean
Dear all,
I'm trying to build a dummy jsf portlet using primefaces which calls a service on the init method.
The problem I'm experiencing is that the bean of the service is not injected. Just to complete the analysis, the service i've implemented and correctly deployed is the EntryService described on the official documentation https://portal.liferay.dev/docs/7-0/tutorials/-/knowledge_base/t/integrating-the-new-back-end
Below I list the portlet controller code
PortletController
Anyway I don't know why I get this nullpointer exception when I've declared the bean at the end of my PortletController code.
Can you please support me?
Thank you in advance.
Best regards,
Alex
I'm trying to build a dummy jsf portlet using primefaces which calls a service on the init method.
The problem I'm experiencing is that the bean of the service is not injected. Just to complete the analysis, the service i've implemented and correctly deployed is the EntryService described on the official documentation https://portal.liferay.dev/docs/7-0/tutorials/-/knowledge_base/t/integrating-the-new-back-end
Below I list the portlet controller code
PortletController
package com.test.primefaces.controller;
import com.liferay.docs.guestbook.model.Entry;
import com.liferay.docs.guestbook.service.EntryLocalService;
import com.liferay.docs.guestbook.service.GuestbookLocalService;
import com.liferay.portal.kernel.exception.PortalException;
import com.liferay.portal.kernel.service.ServiceContext;
import com.liferay.portal.kernel.service.ServiceContextFactory;import java.io.Serializable;import javax.annotation.PostConstruct;
import javax.faces.context.FacesContext;
import javax.faces.view.ViewScoped;
import javax.inject.Named;
import javax.portlet.PortletRequest;import org.osgi.service.component.annotations.Reference;@Named
@ViewScoped
public class PortletController implements Serializable { /**
*
*/
private static final long serialVersionUID = -3602794577917175722L; @PostConstruct
public void init() {
FacesContext facesContext = FacesContext.getCurrentInstance();
PortletRequest portletRequest = (PortletRequest) facesContext.getExternalContext().getRequest();
ServiceContext serviceContext;
String userName = "name";
String email = "email";
String message = "message";
long guestbookId = 1;
long entryId = 0;
try {
serviceContext = ServiceContextFactory.getInstance(Entry.class.getName(), portletRequest);
[b]_entryLocalService.addEntry(serviceContext.getUserId(), guestbookId, userName, email, message,
serviceContext);[/b]
} catch (PortalException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} } @Reference(unbind = "-")
protected void setEntryService(EntryLocalService entryLocalService) {
_entryLocalService = entryLocalService;
} @Reference(unbind = "-")
protected void setGuestbookService(GuestbookLocalService guestbookLocalService) {
_guestbookLocalService = guestbookLocalService;
} private EntryLocalService _entryLocalService;
private GuestbookLocalService _guestbookLocalService;}[code]com.sun.faces.mgbean.ManagedBeanCreationException: An error occurred performing resource injection on managed bean portletController
at com.sun.faces.mgbean.BeanBuilder.invokePostConstruct(BeanBuilder.java:227)
at com.sun.faces.mgbean.BeanBuilder.build(BeanBuilder.java:103)
at com.sun.faces.mgbean.BeanManager.createAndPush(BeanManager.java:409)
at com.sun.faces.mgbean.BeanManager.create(BeanManager.java:269)
at com.sun.faces.el.ManagedBeanELResolver.resolveBean(ManagedBeanELResolver.java:257)
at com.sun.faces.el.ManagedBeanELResolver.getValue(ManagedBeanELResolver.java:117)
at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176)
at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203)
at com.sun.el.parser.AstIdentifier.getValue(AstIdentifier.java:116)
at com.sun.el.parser.AstValue.getBase(AstValue.java:150)
at com.sun.el.parser.AstValue.getValue(AstValue.java:199)
at com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:226)
at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:109)
at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:194)
at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:182)
at javax.faces.component.UIOutput.getValue(UIOutput.java:174)
at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getValue(HtmlBasicInputRenderer.java:205)
at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getCurrentValue(HtmlBasicRenderer.java:355)
at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeEnd(HtmlBasicRenderer.java:164)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:920)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1863)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1859)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1859)
at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:456)
at javax.faces.view.ViewDeclarationLanguageWrapper.renderView(ViewDeclarationLanguageWrapper.java:146)
at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:134)
at com.liferay.faces.bridge.application.internal.ViewHandlerCompatImpl.renderView(ViewHandlerCompatImpl.java:93)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:219)
at com.liferay.faces.bridge.internal.BridgePhaseHeaderRenderCommon.executeRender(BridgePhaseHeaderRenderCommon.java:253)
at com.liferay.faces.bridge.internal.BridgePhaseRenderCompatImpl.execute(BridgePhaseRenderCompatImpl.java:57)
at com.liferay.faces.bridge.internal.BridgePhaseRenderImpl.execute(BridgePhaseRenderImpl.java:57)
at com.liferay.faces.bridge.internal.BridgeImpl.doFacesRequest(BridgeImpl.java:157)
at javax.portlet.faces.GenericFacesPortlet.doView(GenericFacesPortlet.java:753)
at javax.portlet.GenericPortlet.doDispatch(GenericPortlet.java:397)
at javax.portlet.faces.GenericFacesPortlet.doDispatch(GenericFacesPortlet.java:669)
at javax.portlet.GenericPortlet.render(GenericPortlet.java:291)
at com.liferay.portlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:127)
at com.liferay.portlet.ScriptDataPortletFilter.doFilter(ScriptDataPortletFilter.java:58)
at com.liferay.portlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:124)
at com.liferay.portal.kernel.portlet.PortletFilterUtil.doFilter(PortletFilterUtil.java:71)
at com.liferay.portal.kernel.servlet.PortletServlet.service(PortletServlet.java:115)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at com.liferay.portal.osgi.web.wab.extender.internal.adapter.AsyncAttributeAdapterServlet.service(AsyncAttributeAdapterServlet.java:85)
at com.liferay.portal.osgi.web.wab.extender.internal.adapter.ServletExceptionAdapter.service(ServletExceptionAdapter.java:76)
at org.eclipse.equinox.http.servlet.internal.registration.EndpointRegistration.service(EndpointRegistration.java:153)
at org.eclipse.equinox.http.servlet.internal.servlet.FilterChainImpl.doFilter(FilterChainImpl.java:50)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:124)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:104)
at com.liferay.portal.osgi.web.wab.extender.internal.adapter.FilterExceptionAdapter.doFilter(FilterExceptionAdapter.java:46)
at org.eclipse.equinox.http.servlet.internal.registration.FilterRegistration.doFilter(FilterRegistration.java:121)
at org.eclipse.equinox.http.servlet.internal.servlet.FilterChainImpl.doFilter(FilterChainImpl.java:45)
at org.eclipse.equinox.http.servlet.internal.servlet.ResponseStateHandler.processRequest(ResponseStateHandler.java:70)
at org.eclipse.equinox.http.servlet.internal.context.DispatchTargets.doDispatch(DispatchTargets.java:120)
at org.eclipse.equinox.http.servlet.internal.servlet.RequestDispatcherAdaptor.include(RequestDispatcherAdaptor.java:48)
at com.liferay.portlet.internal.InvokerPortletImpl.invoke(InvokerPortletImpl.java:571)
at com.liferay.portlet.internal.InvokerPortletImpl.invokeRender(InvokerPortletImpl.java:661)
at com.liferay.portlet.internal.InvokerPortletImpl.render(InvokerPortletImpl.java:344)
at com.liferay.portal.monitoring.internal.portlet.MonitoringInvokerPortlet.lambda$render$0(MonitoringInvokerPortlet.java:259)
at com.liferay.portal.monitoring.internal.portlet.MonitoringInvokerPortlet$$Lambda$9715/734662555.render(Unknown Source)
at com.liferay.portal.monitoring.internal.portlet.MonitoringInvokerPortlet._render(MonitoringInvokerPortlet.java:363)
at com.liferay.portal.monitoring.internal.portlet.MonitoringInvokerPortlet.render(MonitoringInvokerPortlet.java:257)
at org.apache.jsp.html.portal.render_005fportlet_jsp._jspService(Unknown Source)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at com.liferay.portal.servlet.DirectRequestDispatcher.include(DirectRequestDispatcher.java:64)
at com.liferay.portal.servlet.DirectRequestDispatcherFactoryImpl$IndirectRequestDispatcher.include(DirectRequestDispatcherFactoryImpl.java:190)
at com.liferay.portal.servlet.ClassLoaderRequestDispatcherWrapper.doDispatch(ClassLoaderRequestDispatcherWrapper.java:79)
at com.liferay.portal.servlet.ClassLoaderRequestDispatcherWrapper.include(ClassLoaderRequestDispatcherWrapper.java:53)
at com.liferay.portal.servlet.TransferHeadersHelperImpl$TransferHeadersRequestDispatcher.include(TransferHeadersHelperImpl.java:162)
at com.liferay.portlet.internal.PortletContainerImpl._render(PortletContainerImpl.java:908)
at com.liferay.portlet.internal.PortletContainerImpl.lambda$render$2(PortletContainerImpl.java:223)
at com.liferay.portlet.internal.PortletContainerImpl$$Lambda$9709/1076688145.get(Unknown Source)
at com.liferay.portlet.internal.PortletContainerImpl._preserveGroupIds(PortletContainerImpl.java:425)
at com.liferay.portlet.internal.PortletContainerImpl.render(PortletContainerImpl.java:211)
at com.liferay.portlet.SecurityPortletContainerWrapper.render(SecurityPortletContainerWrapper.java:145)
at com.liferay.portlet.RestrictPortletContainerWrapper.lambda$render$0(RestrictPortletContainerWrapper.java:128)
at com.liferay.portlet.RestrictPortletContainerWrapper$$Lambda$9708/87708308.render(Unknown Source)
at com.liferay.portlet.RestrictPortletContainerWrapper._render(RestrictPortletContainerWrapper.java:189)
at com.liferay.portlet.RestrictPortletContainerWrapper.render(RestrictPortletContainerWrapper.java:126)
at com.liferay.portal.kernel.portlet.PortletContainerUtil.render(PortletContainerUtil.java:215)
at com.liferay.portal.layoutconfiguration.util.PortletRenderer._render(PortletRenderer.java:209)
at com.liferay.portal.layoutconfiguration.util.PortletRenderer.render(PortletRenderer.java:87)
at com.liferay.portal.layoutconfiguration.util.RuntimePageImpl.doProcessTemplate(RuntimePageImpl.java:593)
at com.liferay.portal.layoutconfiguration.util.RuntimePageImpl.doDispatch(RuntimePageImpl.java:359)
at com.liferay.portal.layoutconfiguration.util.RuntimePageImpl.processTemplate(RuntimePageImpl.java:160)
at com.liferay.portal.layoutconfiguration.util.RuntimePageImpl.processTemplate(RuntimePageImpl.java:185)
at com.liferay.portal.kernel.layoutconfiguration.util.RuntimePageUtil.processTemplate(RuntimePageUtil.java:105)
at org.apache.jsp.html.portal.layout.view.portlet_jsp._jspService(Unknown Source)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at com.liferay.portal.servlet.DirectRequestDispatcher.include(DirectRequestDispatcher.java:64)
at com.liferay.portal.servlet.DirectRequestDispatcherFactoryImpl$IndirectRequestDispatcher.include(DirectRequestDispatcherFactoryImpl.java:190)
at com.liferay.portal.servlet.ClassLoaderRequestDispatcherWrapper.doDispatch(ClassLoaderRequestDispatcherWrapper.java:79)
at com.liferay.portal.servlet.ClassLoaderRequestDispatcherWrapper.include(ClassLoaderRequestDispatcherWrapper.java:53)
at com.liferay.portal.servlet.TransferHeadersHelperImpl$TransferHeadersRequestDispatcher.include(TransferHeadersHelperImpl.java:162)
at com.liferay.portal.model.impl.LayoutTypeControllerImpl.includeLayoutContent(LayoutTypeControllerImpl.java:166)
at com.liferay.portal.model.impl.LayoutImpl.includeLayoutContent(LayoutImpl.java:890)
at com.liferay.portal.action.LayoutAction.processLayout(LayoutAction.java:413)
at com.liferay.portal.action.LayoutAction.execute(LayoutAction.java:170)
at com.liferay.portal.struts.PortalRequestProcessor._process(PortalRequestProcessor.java:415)
at com.liferay.portal.struts.PortalRequestProcessor.process(PortalRequestProcessor.java:155)
at com.liferay.portal.internal.servlet.MainServlet.doGet(MainServlet.java:205)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
at com.liferay.portal.internal.servlet.MainServlet.service(MainServlet.java:622)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:124)
at com.liferay.portal.servlet.filters.password.modified.PasswordModifiedFilter.processFilter(PasswordModifiedFilter.java:62)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:49)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:215)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:147)
at com.liferay.portal.servlet.filters.secure.BaseAuthFilter.processFilter(BaseAuthFilter.java:340)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:49)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:215)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:147)
at com.liferay.portal.monitoring.internal.servlet.filter.MonitoringFilter.processFilter(MonitoringFilter.java:183)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:49)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:215)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:104)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:712)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:459)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:384)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:312)
at com.liferay.friendly.url.internal.servlet.FriendlyURLServlet.service(FriendlyURLServlet.java:409)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at com.liferay.portal.servlet.ServletAdapter.service(ServletAdapter.java:99)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:124)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:147)
at com.liferay.portal.servlet.filters.i18n.I18nFilter.processFilter(I18nFilter.java:368)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:49)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:215)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.servlet.filters.password.modified.PasswordModifiedFilter.processFilter(PasswordModifiedFilter.java:62)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:49)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:215)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:147)
at com.liferay.portal.servlet.filters.secure.BaseAuthFilter.processFilter(BaseAuthFilter.java:340)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:49)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:215)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:147)
at com.liferay.portal.servlet.filters.autologin.AutoLoginFilter.processFilter(AutoLoginFilter.java:264)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:49)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:215)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:147)
at com.liferay.portal.monitoring.internal.servlet.filter.MonitoringFilter.processFilter(MonitoringFilter.java:183)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:49)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:215)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:104)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:712)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:459)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:384)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:312)
at com.liferay.portal.servlet.filters.virtualhost.VirtualHostFilter.processFilter(VirtualHostFilter.java:360)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:49)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:215)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:196)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:99)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:196)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:99)
at org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:176)
at org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:145)
at org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:92)
at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:389)
at com.liferay.portal.servlet.filters.urlrewrite.UrlRewriteFilter.processFilter(UrlRewriteFilter.java:65)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:49)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:215)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:175)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:99)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:175)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:99)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:196)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:99)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:104)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:200)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:834)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1415)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
Caused by: com.sun.faces.spi.InjectionProviderException
at com.sun.faces.vendor.WebContainerInjectionProvider.invokeAnnotatedMethod(WebContainerInjectionProvider.java:115)
at com.sun.faces.vendor.WebContainerInjectionProvider.invokePostConstruct(WebContainerInjectionProvider.java:95)
at com.sun.faces.mgbean.BeanBuilder.invokePostConstruct(BeanBuilder.java:221)
... 215 more
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at com.sun.faces.vendor.WebContainerInjectionProvider.invokeAnnotatedMethod(WebContainerInjectionProvider.java:113)
... 217 more
Caused by: java.lang.NullPointerException
at com.test.primefaces.controller.PortletController.init(PortletController.java:45)
... 222 moreAnyway I don't know why I get this nullpointer exception when I've declared the bean at the end of my PortletController code.
Can you please support me?
Thank you in advance.
Best regards,
Alex
Moved to the Liferay Faces category.
Hi Alex,
You are doing well by following the documentation for generating and integrating services, but you are trying to use OSGi Declarative Services within the lifecycle of a WAR-shaped Java EE style JSF portlet. Those are two different lifecycles that can't be combined. In other words, you can't use the OSGi @Reference annotation to inject services into your @ViewScoped JSF managed bean.
When JSR 378 is done you will be able to inject the OSGi service using JSR 330 @Inject (via CDI). But for now, you have to use a ServiceTracker approach. I recommend that you study the source in the primefaces-users-portlet demo. Specifically, look at the postConstruct method of the UsersBackingBean class to see how to acquire/open a ServiceTracker and the preDestroy method to see how to close it. The [url=http:// public void save(ActionEvent actionEvent) { try { if (!userLocalServiceTracker.isEmpty()) {]save method shows how to get the underlying service from the ServiceTracker and then invoke the service.
Finally I recommend that you watch my DEVCON presentation titled Developing WABs with a View to The Future on YouTube. Starting at around 21 minutes into the video, I discuss the ServiceTracker approach.
Kind Regards,
Neil
You are doing well by following the documentation for generating and integrating services, but you are trying to use OSGi Declarative Services within the lifecycle of a WAR-shaped Java EE style JSF portlet. Those are two different lifecycles that can't be combined. In other words, you can't use the OSGi @Reference annotation to inject services into your @ViewScoped JSF managed bean.
When JSR 378 is done you will be able to inject the OSGi service using JSR 330 @Inject (via CDI). But for now, you have to use a ServiceTracker approach. I recommend that you study the source in the primefaces-users-portlet demo. Specifically, look at the postConstruct method of the UsersBackingBean class to see how to acquire/open a ServiceTracker and the preDestroy method to see how to close it. The [url=http:// public void save(ActionEvent actionEvent) { try { if (!userLocalServiceTracker.isEmpty()) {]save method shows how to get the underlying service from the ServiceTracker and then invoke the service.
Finally I recommend that you watch my DEVCON presentation titled Developing WABs with a View to The Future on YouTube. Starting at around 21 minutes into the video, I discuss the ServiceTracker approach.
Kind Regards,
Neil
Hi Nail,
thank you for your advice.
It helped me a lot.
Best regards,
Alex
thank you for your advice.
It helped me a lot.
Best regards,
Alex
Hi Alex, it's my pleasure and thanks for using Liferay Faces! 
Copyright © 2025 Liferay, Inc
• Privacy Policy
Powered by Liferay™