"My Workflow Tasks is temporarily unavailable."

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Tiago Machado, modified 5 Years ago.

"My Workflow Tasks is temporarily unavailable."

Junior Member Posts: 59 Join Date: 2/21/19 Recent Posts

Hello friends,
I am trying to implement workflow to my project, when I add the movie the status appears at "Pending", I receive the notification but when I go to "Notifications" and click in the notification so I can approve or reject I get the message: "My Workflow Tasks is temporarily unavailable."

What I want to do is to be able to accept or reject, and if a new movie is added notify with an e-mail, and if the workflow state changes from 1 to 2 notify again with an e-mail...

here is the code I have until now

MovieLocalServiceImpl class(add methods):

@Indexable(type = IndexableType.REINDEX)
&nbsp;&nbsp; &nbsp;public Movie addMovie(long groupId, String movieName, String description, int rating, ServiceContext serviceContext)
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;throws PortalException {

&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;// Group is used for the scoping the Movie entity to the site
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;Group group = groupPersistence.findByPrimaryKey(groupId);

&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;// getting the user, first get the user id go get the user
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;long userId = serviceContext.getUserId();
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;User user = userLocalService.getUserById(userId);

&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;// Generate primary key for the new movie - referencing the movie class in the
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;// specific movie about to create
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;long movieId = counterLocalService.increment(Movie.class.getName()); // counterLocalService helps with primary
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;// key

&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;// create new movie object
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;Movie movie = super.createMovie(movieId);

&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;// populate all movie object fields
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;movie.setCompanyId(group.getCompanyId());
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;movie.setGroupId(groupId);
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;movie.setUserId(userId);
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;movie.setDescription(description);
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;movie.setMovieName(movieName);
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;movie.setRating(rating);
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;movie.setUserName(user.getScreenName());
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;movie.setModifiedDate(serviceContext.getModifiedDate(new Date()));
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;movie.setCreateDate(serviceContext.getCreateDate(new Date()));

&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;// add permission resources
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;boolean portletActions = false;
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;boolean addGroupPermissions = true;
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;boolean addGuestPermissions = true;
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;// when creating the movie, we create the permission resource along it.
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;resourceLocalService.addResources(group.getCompanyId(), groupId, userId, Movie.class.getName(),
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;movie.getMovieId(), portletActions, addGroupPermissions, addGuestPermissions);
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;//set status
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;movie.setStatus(WorkflowConstants.STATUS_DRAFT);
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;movie.setStatusByUserId(userId);
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;movie.setStatusByUserName(user.getFullName());
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;movie.setStatusDate(serviceContext.getModifiedDate(null));
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;// update asset
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;updateAsset(movie, serviceContext);
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;// persist the movie
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;movie = super.addMovie(movie);

&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;return startWorkflowInstance(userId, movie, serviceContext);
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;//return movie;
&nbsp;&nbsp; &nbsp;}

&nbsp;&nbsp; &nbsp;@Indexable(type = IndexableType.REINDEX)
&nbsp;&nbsp; &nbsp;public Movie addMovieAndAuthor(long groupId, String movieName, String description, int rating, String authorName,
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;String biography, ServiceContext serviceContext) throws PortalException {

&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;Movie movie = addMovie(groupId, movieName, description, rating, serviceContext);
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;long userId = serviceContext.getUserId();

&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;Author author = AuthorServiceUtil.addAuthor(movie.getMovieId(), authorName, biography, serviceContext);
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;author = AuthorLocalServiceUtil.addAuthor(author);
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;return startWorkflowInstance(userId, movie, serviceContext);

&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;//return movie;

&nbsp;&nbsp; &nbsp;}

MovieWorkflowHandler class:

@Component(
&nbsp;&nbsp; &nbsp;immediate = true,&nbsp;
&nbsp;&nbsp; &nbsp;service = WorkflowHandler.class
)
public class MovieWorkflowHandler extends BaseWorkflowHandler<movie> {

&nbsp;&nbsp; &nbsp;@Override
&nbsp;&nbsp; &nbsp;public String getClassName() {
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;return Movie.class.getName();
&nbsp;&nbsp; &nbsp;}

&nbsp;&nbsp; &nbsp;@Override
&nbsp;&nbsp; &nbsp;public String getType(Locale locale) {
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;return _resourceActions.getModelResource(locale, getClassName());
&nbsp;&nbsp; &nbsp;}

&nbsp;&nbsp; &nbsp;@Override
&nbsp;&nbsp; &nbsp;public Movie updateStatus(int status, Map<string, serializable> workflowContext) throws PortalException {

&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;long userId = GetterUtil.getLong((String) workflowContext.get(WorkflowConstants.CONTEXT_USER_ID));

&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;long resourcePrimKey = GetterUtil.getLong(
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;(String) workflowContext.get(WorkflowConstants.CONTEXT_ENTRY_CLASS_PK));

&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;if (_log.isDebugEnabled()) {
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;_log.debug("Updating workflow status for movie " + resourcePrimKey);
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;}

&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;ServiceContext serviceContext = (ServiceContext) workflowContext.get("serviceContext");

&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;return _movieLocalService.updateStatus(userId, resourcePrimKey, status, serviceContext);
&nbsp;&nbsp; &nbsp;}

&nbsp;&nbsp; &nbsp;@Reference
&nbsp;&nbsp; &nbsp;private MovieLocalService _movieLocalService;

&nbsp;&nbsp; &nbsp;@Reference
&nbsp;&nbsp; &nbsp;private ResourceActions _resourceActions;

&nbsp;&nbsp; &nbsp;private Log _log = LogFactoryUtil.getLog(MovieWorkflowHandler.class);

}
</string,></movie>

Console log:
2019-03-21 17:21:50.245 ERROR [http-nio-8080-exec-10][PortletRequestDispatcherImpl:331] Unable to dispatch request: java.lang.NullPointerException
2019-03-21 17:21:50.247 ERROR [http-nio-8080-exec-10][PortletServlet:112] javax.portlet.PortletException: org.apache.jasper.JasperException: java.lang.NullPointerException
javax.portlet.PortletException: org.apache.jasper.JasperException: java.lang.NullPointerException
   at com.liferay.portlet.internal.PortletRequestDispatcherImpl.dispatch(PortletRequestDispatcherImpl.java:333)
   at com.liferay.portlet.internal.PortletRequestDispatcherImpl.include(PortletRequestDispatcherImpl.java:128)
   at com.liferay.portal.kernel.portlet.bridges.mvc.MVCPortlet.include(MVCPortlet.java:589)
   at com.liferay.portal.kernel.portlet.bridges.mvc.MVCPortlet.include(MVCPortlet.java:605)
   at com.liferay.portal.kernel.portlet.bridges.mvc.MVCPortlet.doDispatch(MVCPortlet.java:489)
   at com.liferay.portal.workflow.task.web.internal.portlet.MyWorkflowTaskPortlet.doDispatch(MyWorkflowTaskPortlet.java:157)
   at javax.portlet.GenericPortlet.render(GenericPortlet.java:291)
   at com.liferay.portal.kernel.portlet.bridges.mvc.MVCPortlet.render(MVCPortlet.java:316)
   at com.liferay.portal.workflow.task.web.internal.portlet.MyWorkflowTaskPortlet.render(MyWorkflowTaskPortlet.java:113)
   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:108)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
   at org.eclipse.equinox.http.servlet.internal.registration.EndpointRegistration.service(EndpointRegistration.java:153)
   at org.eclipse.equinox.http.servlet.internal.servlet.ResponseStateHandler.processRequest(ResponseStateHandler.java:62)
   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:564)
   at com.liferay.portlet.internal.InvokerPortletImpl.invokeRender(InvokerPortletImpl.java:660)
   at com.liferay.portlet.internal.InvokerPortletImpl.render(InvokerPortletImpl.java:357)
   at com.liferay.portal.monitoring.internal.portlet.MonitoringInvokerPortlet.lambda$render$0(MonitoringInvokerPortlet.java:280)
   at com.liferay.portal.monitoring.internal.portlet.MonitoringInvokerPortlet._render(MonitoringInvokerPortlet.java:383)
   at com.liferay.portal.monitoring.internal.portlet.MonitoringInvokerPortlet.render(MonitoringInvokerPortlet.java:278)
   at org.apache.jsp.html.portal.render_005fportlet_jsp._jspService(render_005fportlet_jsp.java:1534)
   at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
   at com.liferay.portal.servlet.DirectRequestDispatcher.include(DirectRequestDispatcher.java:64)
   at com.liferay.portal.servlet.DirectRequestDispatcherFactoryImpl$IndirectRequestDispatcher.include(DirectRequestDispatcherFactoryImpl.java:202)
   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$TransferHeadersRequestDispatcher.include(TransferHeadersHelperImpl.java:162)
   at com.liferay.portlet.internal.PortletContainerImpl._render(PortletContainerImpl.java:870)
   at com.liferay.portlet.internal.PortletContainerImpl.lambda$render$2(PortletContainerImpl.java:216)
   at com.liferay.portlet.internal.PortletContainerImpl._preserveGroupIds(PortletContainerImpl.java:395)
   at com.liferay.portlet.internal.PortletContainerImpl.render(PortletContainerImpl.java:205)
   at com.liferay.portlet.SecurityPortletContainerWrapper.render(SecurityPortletContainerWrapper.java:142)
   at com.liferay.portlet.RestrictPortletContainerWrapper.lambda$render$0(RestrictPortletContainerWrapper.java:126)
   at com.liferay.portlet.RestrictPortletContainerWrapper._render(RestrictPortletContainerWrapper.java:183)
   at com.liferay.portlet.RestrictPortletContainerWrapper.render(RestrictPortletContainerWrapper.java:124)
   at com.liferay.portal.kernel.portlet.PortletContainerUtil.render(PortletContainerUtil.java:212)
   at com.liferay.portal.layoutconfiguration.util.velocity.TemplateProcessor.processMax(TemplateProcessor.java:181)
   at sun.reflect.GeneratedMethodAccessor998.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:498)
   at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:389)
   at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:378)
   at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:270)
   at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:262)
   at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:342)
   at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:336)
   at org.apache.velocity.Template.merge(Template.java:328)
   at org.apache.velocity.Template.merge(Template.java:235)
   at com.liferay.portal.template.velocity.internal.VelocityTemplate.processTemplate(VelocityTemplate.java:99)
   at com.liferay.portal.template.AbstractSingleResourceTemplate.processTemplate(AbstractSingleResourceTemplate.java:78)
   at com.liferay.portal.layoutconfiguration.util.RuntimePageImpl.doProcessTemplate(RuntimePageImpl.java:423)
   at com.liferay.portal.layoutconfiguration.util.RuntimePageImpl.doDispatch(RuntimePageImpl.java:340)
   at com.liferay.portal.layoutconfiguration.util.RuntimePageImpl.getProcessedTemplate(RuntimePageImpl.java:109)
   at com.liferay.portal.kernel.layoutconfiguration.util.RuntimePageUtil.getProcessedTemplate(RuntimePageUtil.java:36)
   at com.liferay.application.list.taglib.display.context.logic.PanelAppContentHelper.writeContent(PanelAppContentHelper.java:85)
   at org.apache.jsp.application_005fcontent.page_jsp._jspService(page_jsp:161)
   at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:111)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
   at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:411)
   at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:473)
   at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:377)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
   at com.liferay.portal.osgi.web.servlet.jsp.compiler.internal.JspServlet.service(JspServlet.java:319)
   at com.liferay.portal.osgi.web.servlet.jsp.compiler.internal.JspServlet.service(JspServlet.java:330)
   at org.eclipse.equinox.http.servlet.internal.registration.EndpointRegistration.service(EndpointRegistration.java:153)
   at org.eclipse.equinox.http.servlet.internal.servlet.ResponseStateHandler.processRequest(ResponseStateHandler.java:62)
   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.portal.servlet.DirectServletPathRegisterDispatcher.include(DirectServletPathRegisterDispatcher.java:67)
   at com.liferay.portal.servlet.DirectRequestDispatcherFactoryImpl$IndirectRequestDispatcher.include(DirectRequestDispatcherFactoryImpl.java:202)
   at com.liferay.portal.servlet.ClassLoaderRequestDispatcherWrapper.doDispatch(ClassLoaderRequestDispatcherWrapper.java:79)
   at com.liferay.portal.servlet.ClassLoaderRequestDispatcherWrapper.include(ClassLoaderRequestDispatcherWrapper.java:53)
   at com.liferay.taglib.util.IncludeTag.includePage(IncludeTag.java:385)
   at com.liferay.taglib.util.IncludeTag.include(IncludeTag.java:362)
   at com.liferay.taglib.util.IncludeTag.doInclude(IncludeTag.java:215)
   at com.liferay.taglib.util.IncludeTag.doEndTag(IncludeTag.java:89)
   at org.apache.jsp.layout.view.control_005fpanel_jsp._jspService(control_005fpanel_jsp:131)
   at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:111)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
   at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:411)
   at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:473)
   at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:377)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
   at com.liferay.portal.osgi.web.servlet.jsp.compiler.internal.JspServlet.service(JspServlet.java:319)
   at com.liferay.portal.osgi.web.servlet.jsp.compiler.internal.JspServlet.service(JspServlet.java:330)
   at org.eclipse.equinox.http.servlet.internal.registration.EndpointRegistration.service(EndpointRegistration.java:153)
   at org.eclipse.equinox.http.servlet.internal.servlet.ResponseStateHandler.processRequest(ResponseStateHandler.java:62)
   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.portal.servlet.TransferHeadersHelperImpl$TransferHeadersRequestDispatcher.include(TransferHeadersHelperImpl.java:162)
   at com.liferay.portal.kernel.model.impl.BaseLayoutTypeControllerImpl.includeLayoutContent(BaseLayoutTypeControllerImpl.java:106)
   at com.liferay.portal.model.impl.LayoutImpl.includeLayoutContent(LayoutImpl.java:904)
   at com.liferay.portal.action.LayoutAction.processLayout(LayoutAction.java:407)
   at com.liferay.portal.action.LayoutAction.execute(LayoutAction.java:174)
   at com.liferay.portal.struts.PortalRequestProcessor._processActionPerform(PortalRequestProcessor.java:706)
   at com.liferay.portal.struts.PortalRequestProcessor._process(PortalRequestProcessor.java:646)
   at com.liferay.portal.struts.PortalRequestProcessor.process(PortalRequestProcessor.java:194)
   at com.liferay.portal.servlet.MainServlet.process(MainServlet.java:1067)
   at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
   at com.liferay.portal.servlet.MainServlet.callParentService(MainServlet.java:598)
   at com.liferay.portal.servlet.MainServlet.service(MainServlet.java:575)
   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:119)
   at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:144)
   at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:103)
   at com.liferay.portal.apio.internal.architect.servlet.filter.APIDocumentationFilter.processFilter(APIDocumentationFilter.java:74)
   at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:49)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)
   at com.liferay.portal.servlet.filters.password.modified.PasswordModifiedFilter.processFilter(PasswordModifiedFilter.java:57)
   at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:49)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)
   at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:144)
   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:207)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)
   at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:144)
   at com.liferay.portal.monitoring.internal.servlet.filter.MonitoringFilter.processFilter(MonitoringFilter.java:178)
   at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:49)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:101)
   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:372)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
   at com.liferay.portal.servlet.ServletAdapter.service(ServletAdapter.java:98)
   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:119)
   at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:144)
   at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:103)
   at com.liferay.portal.apio.internal.architect.servlet.filter.APIDocumentationFilter.processFilter(APIDocumentationFilter.java:74)
   at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:49)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)
   at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:144)
   at com.liferay.portal.servlet.filters.strip.StripFilter.processFilter(StripFilter.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:207)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)
   at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:144)
   at com.liferay.portal.servlet.filters.i18n.I18nFilter.processFilter(I18nFilter.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:207)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)
   at com.liferay.portal.servlet.filters.password.modified.PasswordModifiedFilter.processFilter(PasswordModifiedFilter.java:57)
   at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:49)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)
   at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:144)
   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:207)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)
   at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:144)
   at com.liferay.portal.servlet.filters.autologin.AutoLoginFilter.processFilter(AutoLoginFilter.java:260)
   at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:49)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)
   at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:144)
   at com.liferay.portal.sharepoint.SharepointFilter.processFilter(SharepointFilter.java:88)
   at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:49)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)
   at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:144)
   at com.liferay.portal.servlet.filters.virtualhost.VirtualHostFilter.processFilter(VirtualHostFilter.java:263)
   at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:49)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)
   at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:144)
   at com.liferay.portal.monitoring.internal.servlet.filter.MonitoringFilter.processFilter(MonitoringFilter.java:178)
   at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:49)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:188)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:96)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:188)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:96)
   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:207)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:168)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:96)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:168)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:96)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:188)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:96)
   at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:101)
   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:199)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
   at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:491)
   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:87)
   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:764)
   at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1388)
   at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
   at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.jasper.JasperException: java.lang.NullPointerException
   at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:440)
   at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:473)
   at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:377)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
   at com.liferay.portal.osgi.web.servlet.jsp.compiler.internal.JspServlet.service(JspServlet.java:319)
   at com.liferay.portal.osgi.web.servlet.jsp.compiler.internal.JspServlet.service(JspServlet.java:330)
   at org.eclipse.equinox.http.servlet.internal.registration.EndpointRegistration.service(EndpointRegistration.java:153)
   at org.eclipse.equinox.http.servlet.internal.servlet.ResponseStateHandler.processRequest(ResponseStateHandler.java:62)
   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.PortletRequestDispatcherImpl.dispatch(PortletRequestDispatcherImpl.java:318)
   ... 233 more
Caused by: java.lang.NullPointerException
   at org.apache.jsp.edit_005fworkflow_005ftask_jsp._jspService(edit_005fworkflow_005ftask_jsp:326)
   at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:111)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
   at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:411)
   ... 243 more
2019-03-21 17:21:50.250 ERROR [http-nio-8080-exec-10][render_portlet_jsp:131] null
java.lang.NullPointerException
   at org.apache.jsp.edit_005fworkflow_005ftask_jsp._jspService(edit_005fworkflow_005ftask_jsp:326)
   at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:111)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
   at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:411)
   at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:473)
   at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:377)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
   at com.liferay.portal.osgi.web.servlet.jsp.compiler.internal.JspServlet.service(JspServlet.java:319)
   at com.liferay.portal.osgi.web.servlet.jsp.compiler.internal.JspServlet.service(JspServlet.java:330)
   at org.eclipse.equinox.http.servlet.internal.registration.EndpointRegistration.service(EndpointRegistration.java:153)
   at org.eclipse.equinox.http.servlet.internal.servlet.ResponseStateHandler.processRequest(ResponseStateHandler.java:62)
   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.PortletRequestDispatcherImpl.dispatch(PortletRequestDispatcherImpl.java:318)
   at com.liferay.portlet.internal.PortletRequestDispatcherImpl.include(PortletRequestDispatcherImpl.java:128)
   at com.liferay.portal.kernel.portlet.bridges.mvc.MVCPortlet.include(MVCPortlet.java:589)
   at com.liferay.portal.kernel.portlet.bridges.mvc.MVCPortlet.include(MVCPortlet.java:605)
   at com.liferay.portal.kernel.portlet.bridges.mvc.MVCPortlet.doDispatch(MVCPortlet.java:489)
   at com.liferay.portal.workflow.task.web.internal.portlet.MyWorkflowTaskPortlet.doDispatch(MyWorkflowTaskPortlet.java:157)
   at javax.portlet.GenericPortlet.render(GenericPortlet.java:291)

David H Nebinger, modified 5 Years ago.

RE: "My Workflow Tasks is temporarily unavailable."

Liferay Legend Posts: 14919 Join Date: 9/2/06 Recent Posts

The issue is not with your workflow code, the issue points towards your asset renderer.

The workflow view page leverages the asset renderer in order to render a portion of the asset in the workflow task view.

Looks like edit_workflow_task.jsp is throwing an NPE. Unfortunately line 326 is for the java generated source of the JSP, so you'd have to dig into your $LIFERAY_HOME/work/com.liferay.<snip>tasks.web/org/apache/jsp/edit_005fworkflow_005ftask_jsp.java source at line 326 to see what exactly it was trying to use.

Tiago Machado, modified 5 Years ago.

RE: "My Workflow Tasks is temporarily unavailable."

Junior Member Posts: 59 Join Date: 2/21/19 Recent Posts

Hello David, thanks for the answer!
I looked up at the file and in the line 326 I have the following code line:

AssetRendererFactory<!--?--> assetRendererFactory = assetRenderer.getAssetRendererFactory();

so, I guess my proble is here :

updateAsset(movie, serviceContext);

updateAsset method:

private void updateAsset(Movie movie, ServiceContext serviceContext) throws PortalException {

&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;assetEntryLocalService.updateEntry(serviceContext.getUserId(), serviceContext.getScopeGroupId(),
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;movie.getCreateDate(), movie.getModifiedDate(), Movie.class.getName(), movie.getMovieId(),
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;movie.getUuid(), movie.getRating(), serviceContext.getAssetCategoryIds(),
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;serviceContext.getAssetTagNames(), true, true, movie.getCreateDate(), null, null, null,
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;ContentTypes.TEXT_HTML, null, null, movie.getMovieName(), null, null, 0, 0,
&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;serviceContext.getAssetPriority());
&nbsp;&nbsp; &nbsp;}

I'm digging in trying to understand if there is some mistake there but im not finding it emoticon

Tiago Machado, modified 5 Years ago.

RE: "My Workflow Tasks is temporarily unavailable."

Junior Member Posts: 59 Join Date: 2/21/19 Recent Posts

Okay, that was my bad -.-" really silly, I dunno what happened but I missed a part of the tutorial, soI didnt see the factory part.... that was what I was missing lol...

BTW, I dont have a Title field in my db, I had to implement that method, but I am returning it null because I have no movie.getTitle. it is mandatory? now for the part where the movie should be shown to other users only when its aproved I guess its something like if status not aproved dont show, if status aproved show. right?

edit: when rejected it stays in the pending status. is that normal?

thank you a lot

David H Nebinger, modified 5 Years ago.

RE: "My Workflow Tasks is temporarily unavailable."

Liferay Legend Posts: 14919 Join Date: 9/2/06 Recent Posts

Well, movies have titles so you should be able to populate the field.

I don't know that it is mandatory, per se, but the basic search result will include a "title" and some amount of "content" (as generated by the asset renderer). So even if the field is not mandatory, it certainly feels like it would be natural...

Rejected vs Pending? Try not to confuse the "workflow outcome" with the "document state", I think it could be possible for rejected to remain in pending (although I have not verified).

But again, since we've encountered issues getting the movie/author project going, I can't dismiss the possibility that this too is a result of a minor code issue. emoticon

Caterina Geli, modified 3 Years ago.

RE: "My Workflow Tasks is temporarily unavailable."

New Member Post: 1 Join Date: 6/8/20 Recent Posts

Hi Tiago Machado!!I
I'm having the same problem as you and I can't understand how you solved it.
Hope that anyone can help me!!