Question

我创建了一个liferay插件portlet项目并在Liferay 6.2中部署。当我尝试部署时，我得到了＃34; Portlet Portlet_WAR_portletID有一个null portlet包＆＃34;错误。我无法找到根，因为我可以看到我指的是正确的插件项目。

SEVERE: Servlet.service() for servlet jsp threw exception
java.lang.NullPointerException
    at com.liferay.portlet.PortletContextFactory._create(PortletContextFactory.java:84)
    at com.liferay.portlet.PortletContextFactory.create(PortletContextFactory.java:40)
    at com.liferay.portlet.PortletConfigFactoryImpl.create(PortletConfigFactoryImpl.java:56)
    at com.liferay.portlet.PortletConfigFactoryUtil.create(PortletConfigFactoryUtil.java:32)
    at org.apache.jsp.html.portal.render_005fportlet_jsp._jspService(render_005fportlet_jsp.java:606)
    at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
    at com.liferay.portal.servlet.DirectRequestDispatcher.include(DirectRequestDispatcher.java:57)
    at com.liferay.portal.servlet.ClassLoaderRequestDispatcherWrapper.doDispatch(ClassLoaderRequestDispatcherWrapper.java:78)
    at com.liferay.portal.servlet.ClassLoaderRequestDispatcherWrapper.include(ClassLoaderRequestDispatcherWrapper.java:53)
    at com.liferay.portlet.PortletContainerImpl._doRender(PortletContainerImpl.java:655)
    at com.liferay.portlet.PortletContainerImpl.render(PortletContainerImpl.java:138)
    at com.liferay.portlet.SecurityPortletContainerWrapper.render(SecurityPortletContainerWrapper.java:141)
    at com.liferay.portlet.RestrictPortletContainerWrapper.render(RestrictPortletContainerWrapper.java:126)
    at com.liferay.portal.kernel.portlet.PortletContainerUtil.render(PortletContainerUtil.java:156)
    at com.liferay.portal.layoutconfiguration.util.PortletRenderer._render(PortletRenderer.java:120)
    at com.liferay.portal.layoutconfiguration.util.PortletRenderer.access$4(PortletRenderer.java:107)
    at com.liferay.portal.layoutconfiguration.util.PortletRenderer$PortletRendererCallable.doCall(PortletRenderer.java:174)
    at com.liferay.portal.layoutconfiguration.util.PortletRenderer$PortletRendererCallable.doCall(PortletRenderer.java:1)
    at com.liferay.portal.kernel.executor.CopyThreadLocalCallable.call(CopyThreadLocalCallable.java:69)
    at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at com.liferay.portal.kernel.concurrent.ThreadPoolExecutor$WorkerTask._runTask(ThreadPoolExecutor.java:682)
    at com.liferay.portal.kernel.concurrent.ThreadPoolExecutor$WorkerTask.run(ThreadPoolExecutor.java:593)
    at java.lang.Thread.run(Unknown Source)

Answer 1

再次重新部署您的portlet。我遇到了同样的问题。我停止服务器然后清理我的portlet然后我启动了我的服务器。当我在浏览器中检查然后我得到内部服务器并在控制台“ portlet包含一个空包“。我再次部署，它完美无缺。

Answer 2

此问题的最常见解决方案是从Tomcat取消部署portlet并重新部署。

获得＆＃34; Portlet Portlet_WAR_portletID有一个空的portlet包＆＃34;在liferay 6.2

2 个答案: