Major Description
From demo in master, apply this patch:
diff --git a/examples/demo/domain/src/main/java/demoapp/dom/viewmodels/jaxbrefentity/StatefulViewModelJaxbRefsEntity.java b/examples/demo/domain/src/main/java/demoapp/dom/viewmodels/jaxbrefentity/StatefulViewModelJaxbRefsEntity.java index 92a26bc..476ca60 100644 --- a/examples/demo/domain/src/main/java/demoapp/dom/viewmodels/jaxbrefentity/StatefulViewModelJaxbRefsEntity.java +++ b/examples/demo/domain/src/main/java/demoapp/dom/viewmodels/jaxbrefentity/StatefulViewModelJaxbRefsEntity.java @@ -37,11 +37,10 @@ import org.apache.isis.applib.annotation.Property; import org.apache.isis.applib.annotation.SemanticsOf; +import demoapp.dom._infra.asciidocdesc.HasAsciiDocDescription; import lombok.Getter; import lombok.Setter; -import demoapp.dom._infra.asciidocdesc.HasAsciiDocDescription; - //tag::class[] @XmlRootElement(name = "demo.StatefulViewModelJaxbRefsEntity") @XmlType( @@ -103,6 +102,14 @@ @XmlElement(name = "child") private List<ChildJdoEntity> children = new ArrayList<>(); + @Action(associateWith = "children") + public StatefulViewModelJaxbRefsEntity suffixChildren(List<ChildJdoEntity> children) { + for(ChildJdoEntity child : children) { + child.setName(child.getName() + ", Jr"); + } + return this; + } + @Action(associateWith = "children", associateWithSequence = "1", semantics = SemanticsOf.NON_IDEMPOTENT) public StatefulViewModelJaxbRefsEntity addChild(final ChildJdoEntity child) { children.add(child);
Then, on the demo wicket page, go to the view models refs entity. Add all children. Then view all children individually (I used ctrl-click).
Then, select all the children and run the "Suffix Children" action. Before being prompted to affirm the selected children, an NPE occurs:
java.lang.NullPointerException
java.util.Objects#requireNonNull(Objects.java:222)
org.apache.isis.viewer.wicket.ui.components.widgets.linkandlabel.LinkAndLabelFactoryAbstract$1#doOnClick(LinkAndLabelFactoryAbstract.java:112)
org.apache.isis.viewer.wicket.ui.components.widgets.linkandlabel.ActionLink#onClick(ActionLink.java:100)
org.apache.wicket.ajax.markup.html.AjaxLink$1#onEvent(AjaxLink.java:85)
org.apache.wicket.ajax.AjaxEventBehavior#respond(AjaxEventBehavior.java:127)
org.apache.wicket.ajax.AbstractDefaultAjaxBehavior#onRequest(AbstractDefaultAjaxBehavior.java:598)
org.apache.wicket.core.request.handler.ListenerRequestHandler#internalInvoke(ListenerRequestHandler.java:306)
org.apache.wicket.core.request.handler.ListenerRequestHandler#invoke(ListenerRequestHandler.java:280)
org.apache.wicket.core.request.handler.ListenerRequestHandler#invokeListener(ListenerRequestHandler.java:222)
org.apache.wicket.core.request.handler.ListenerRequestHandler#respond(ListenerRequestHandler.java:208)
org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor#respond(RequestCycle.java:914)
org.apache.wicket.request.RequestHandlerExecutor#execute(RequestHandlerExecutor.java:65)
org.apache.wicket.request.cycle.RequestCycle#execute(RequestCycle.java:282)
org.apache.wicket.request.cycle.RequestCycle#processRequest(RequestCycle.java:253)
org.apache.wicket.request.cycle.RequestCycle#processRequestAndDetach(RequestCycle.java:221)
org.apache.wicket.protocol.http.WicketFilter#processRequestCycle(WicketFilter.java:275)
org.apache.wicket.protocol.http.WicketFilter#processRequest(WicketFilter.java:206)
org.apache.wicket.protocol.http.WicketFilter#doFilter(WicketFilter.java:299)
org.apache.catalina.core.ApplicationFilterChain#internalDoFilter(ApplicationFilterChain.java:193)
org.apache.catalina.core.ApplicationFilterChain#doFilter(ApplicationFilterChain.java:166)
org.apache.isis.core.webapp.modules.logonlog.IsisLogOnExceptionFilter#doFilter(IsisLogOnExceptionFilter.java:60)
org.apache.catalina.core.ApplicationFilterChain#internalDoFilter(ApplicationFilterChain.java:193)
org.apache.catalina.core.ApplicationFilterChain#doFilter(ApplicationFilterChain.java:166)
org.springframework.web.filter.RequestContextFilter#doFilterInternal(RequestContextFilter.java:100)
org.springframework.web.filter.OncePerRequestFilter#doFilter(OncePerRequestFilter.java:119)
org.apache.catalina.core.ApplicationFilterChain#internalDoFilter(ApplicationFilterChain.java:193)
org.apache.catalina.core.ApplicationFilterChain#doFilter(ApplicationFilterChain.java:166)
org.springframework.web.filter.FormContentFilter#doFilterInternal(FormContentFilter.java:93)
org.springframework.web.filter.OncePerRequestFilter#doFilter(OncePerRequestFilter.java:119)
org.apache.catalina.core.ApplicationFilterChain#internalDoFilter(ApplicationFilterChain.java:193)
org.apache.catalina.core.ApplicationFilterChain#doFilter(ApplicationFilterChain.java:166)
org.springframework.web.filter.CharacterEncodingFilter#doFilterInternal(CharacterEncodingFilter.java:201)
org.springframework.web.filter.OncePerRequestFilter#doFilter(OncePerRequestFilter.java:119)
org.apache.catalina.core.ApplicationFilterChain#internalDoFilter(ApplicationFilterChain.java:193)
org.apache.catalina.core.ApplicationFilterChain#doFilter(ApplicationFilterChain.java:166)
org.apache.shiro.web.servlet.AbstractShiroFilter#executeChain(AbstractShiroFilter.java:449)
org.apache.shiro.web.servlet.AbstractShiroFilter$1#call(AbstractShiroFilter.java:365)
org.apache.shiro.subject.support.SubjectCallable#doCall(SubjectCallable.java:90)
org.apache.shiro.subject.support.SubjectCallable#call(SubjectCallable.java:83)
org.apache.shiro.subject.support.DelegatingSubject#execute(DelegatingSubject.java:387)
org.apache.shiro.web.servlet.AbstractShiroFilter#doFilterInternal(AbstractShiroFilter.java:362)
org.apache.shiro.web.servlet.OncePerRequestFilter#doFilter(OncePerRequestFilter.java:125)
org.apache.catalina.core.ApplicationFilterChain#internalDoFilter(ApplicationFilterChain.java:193)
org.apache.catalina.core.ApplicationFilterChain#doFilter(ApplicationFilterChain.java:166)
org.apache.catalina.core.StandardWrapperValve#invoke(StandardWrapperValve.java:202)
org.apache.catalina.core.StandardContextValve#invoke(StandardContextValve.java:96)
org.apache.catalina.authenticator.AuthenticatorBase#invoke(AuthenticatorBase.java:541)
org.apache.catalina.core.StandardHostValve#invoke(StandardHostValve.java:139)
org.apache.catalina.valves.ErrorReportValve#invoke(ErrorReportValve.java:92)
org.apache.catalina.core.StandardEngineValve#invoke(StandardEngineValve.java:74)
org.apache.catalina.connector.CoyoteAdapter#service(CoyoteAdapter.java:343)
org.apache.coyote.http11.Http11Processor#service(Http11Processor.java:373)
org.apache.coyote.AbstractProcessorLight#process(AbstractProcessorLight.java:65)
org.apache.coyote.AbstractProtocol$ConnectionHandler#process(AbstractProtocol.java:868)
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor#doRun(NioEndpoint.java:1590)
org.apache.tomcat.util.net.SocketProcessorBase#run(SocketProcessorBase.java:49)
java.util.concurrent.ThreadPoolExecutor#runWorker(ThreadPoolExecutor.java:1128)
java.util.concurrent.ThreadPoolExecutor$Worker#run(ThreadPoolExecutor.java:628)
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable#run(TaskThread.java:61)
java.lang.Thread#run(Thread.java:830)
Note, this action succeeds if I do not view the children beforehand.