NullPointerException: Cannot invoke "java.util.Collection.toArray()" because "c" is null #49
ansv7779
commented
Owner
```
2024-11-11 19:18:27 [INFO] AdditionalExceptionLogger: Current user: User(id=32975, identifier=177579, firstName=xxx, lastName=xxx, emailAddress=xxx, deceased=false, degreeType=MASTER)
2024-11-11 19:18:27 [INFO] AdditionalExceptionLogger: Browser: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36
2024-11-11 19:18:27 [INFO] AdditionalExceptionLogger: Request url: GET projectideas/allsupervisor?2&apid=76
2024-11-11 19:18:27 [INFO] AdditionalExceptionLogger: Request parameter: 2=[]
2024-11-11 19:18:27 [INFO] AdditionalExceptionLogger: Request parameter: apid=[76]
2024-11-11 19:18:27 [ERROR] DefaultExceptionMapper: Unexpected error occurred
org.apache.wicket.WicketRuntimeException: An error occurred while getting the model object for Component: [ListView [Component id = languages, page = se.su.dsv.scipro.match.ProjectNewAllSupervisorIdeasPage, path = ideaPanel:dialog:body:form:details:languages, type = org.apache.wicket.markup.html.list.ListView, isVisible = true, isVersioned = true], children = [ListItem [Component id = 0]][ListItem [Component id = 1]]]
at org.apache.wicket.Component.getDefaultModelObject(Component.java:1599)
at org.apache.wicket.markup.html.list.ListView.getViewSize(ListView.java:218)
at org.apache.wicket.markup.html.list.ListView.onPopulate(ListView.java:472)
at org.apache.wicket.markup.repeater.AbstractRepeater.onBeforeRender(AbstractRepeater.java:124)
at org.apache.wicket.Component.beforeRender(Component.java:949)
at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1747)
at org.apache.wicket.Component.onBeforeRender(Component.java:3832)
at org.apache.wicket.Component.beforeRender(Component.java:949)
at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1747)
at org.apache.wicket.Component.onBeforeRender(Component.java:3832)
at org.apache.wicket.markup.html.form.Form.onBeforeRender(Form.java:1902)
at org.apache.wicket.Component.beforeRender(Component.java:949)
at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1747)
at org.apache.wicket.Component.onBeforeRender(Component.java:3832)
at org.apache.wicket.Component.beforeRender(Component.java:949)
at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1747)
at org.apache.wicket.Component.onBeforeRender(Component.java:3832)
at org.apache.wicket.Component.beforeRender(Component.java:949)
at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1747)
at org.apache.wicket.Component.onBeforeRender(Component.java:3832)
at org.apache.wicket.Component.beforeRender(Component.java:949)
at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1747)
at org.apache.wicket.Component.onBeforeRender(Component.java:3832)
at org.apache.wicket.Page.onBeforeRender(Page.java:788)
at org.apache.wicket.Component.beforeRender(Component.java:949)
at org.apache.wicket.Page.renderPage(Page.java:990)
at org.apache.wicket.request.handler.render.WebPageRenderer.renderPage(WebPageRenderer.java:124)
at org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:195)
at org.apache.wicket.core.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:202)
at org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:910)
at org.apache.wicket.request.RequestHandlerExecutor.execute(RequestHandlerExecutor.java:63)
at org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:294)
at org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:255)
at org.apache.wicket.protocol.http.WicketFilter.processRequestCycle(WicketFilter.java:277)
at org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:208)
at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:307)
at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:82)
at com.google.inject.persist.PersistFilter.doFilter(PersistFilter.java:94) [guice-persist-7.0.0.jar:?]
at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:82)
at com.google.inject.servlet.ManagedFilterPipeline.dispatch(ManagedFilterPipeline.java:121)
at com.google.inject.servlet.GuiceFilter.doFilter(GuiceFilter.java:133)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:166)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:115)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:676)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357)
at org.apache.coyote.ajp.AjpProcessor.service(AjpProcessor.java:440)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:894)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1741)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:840)
Caused by: java.lang.NullPointerException: Cannot invoke "java.util.Collection.toArray()" because "c" is null
at java.util.ArrayList.<init>(ArrayList.java:181)
at se.su.dsv.scipro.components.ListAdapterModel.getObject(ListAdapterModel.java:18)
at se.su.dsv.scipro.components.ListAdapterModel.getObject(ListAdapterModel.java:9)
at org.apache.wicket.Component.getDefaultModelObject(Component.java:1592)
... 59 more
```
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