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https://issues.apache.org/jira/browse/ISIS-2398?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andi Huber updated ISIS-2398:
-----------------------------
Issue Type: Bug (was: Improvement)
> Rendering a StandaloneCollectionPage in Wicket throws Optional not
> serializable exception
> -----------------------------------------------------------------------------------------
>
> Key: ISIS-2398
> URL: https://issues.apache.org/jira/browse/ISIS-2398
> Project: Isis
> Issue Type: Bug
> Affects Versions: 2.0.0-M3
> Reporter: Daniel Keir Haywood
> Assignee: Andi Huber
> Priority: Minor
> Fix For: 2.0.0-M4
>
>
> For demo app, this occurs when Prototyping > Run Fixture Script. See
> stacktrace
> This seems to be just noise in the logs, but even so....
> {code:java}
> 2020-07-09 06:36:13.588 ERROR 3524 --- [ageSavingThread]
> o.a.w.s.j.JavaSerializer : Error serializing object class
> org.apache.isis.viewer.wicket.ui.pages.standalonecollection.StandaloneCollectionPage
> [object=[Page class =
> org.apache.isis.viewer.wicket.ui.pages.standalonecollection.StandaloneCollectionPage,
> id = 4, render count =
> 1]]org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream$ObjectCheckException:
> The object type is not Serializable!
> A problem occurred while checking object with type: java.util.Optional
> Field hierarchy is:
> 4
> [class=org.apache.isis.viewer.wicket.ui.pages.standalonecollection.StandaloneCollectionPage,
> path=4]
> private java.lang.Object org.apache.wicket.MarkupContainer.children
> [class=java.util.ArrayList]
> private java.lang.String
> org.apache.isis.viewer.wicket.ui.components.widgets.favicon.Favicon.contentType[write:6][write:7][write:8]
> [class=org.apache.wicket.markup.html.WebMarkupContainer, path=4:theme]
> private java.lang.Object org.apache.wicket.MarkupContainer.children
> [class=java.util.ArrayList]
> private org.apache.isis.viewer.wicket.ui.ComponentType
> org.apache.isis.viewer.wicket.ui.panels.PanelAbstract.componentType[write:12][write:13][write:20]
>
> [class=org.apache.isis.viewer.wicket.ui.components.actionprompt.ActionPromptModalWindow,
> path=4:theme:actionPromptModalWindow]
> private java.lang.Object
> org.apache.wicket.MarkupContainer.children [class=java.util.ArrayList]
> private java.lang.Object
> org.apache.wicket.MarkupContainer.children[write:3][write:5][write:8]
> [class=org.apache.isis.viewer.wicket.ui.components.actions.ActionParametersPanel,
> path=4:theme:actionPromptModalWindow:content]
> private java.lang.Object
> org.apache.wicket.MarkupContainer.children [class=java.util.ArrayList]
> java.lang.Object
> org.apache.wicket.Component.data[write:8][write:4][write:7]
> [class=org.apache.isis.viewer.wicket.ui.components.actions.ActionParametersFormPanel,
> path=4:theme:actionPromptModalWindow:content:parameters]
> private java.lang.Object
> org.apache.wicket.MarkupContainer.children
> [class=org.apache.isis.viewer.wicket.ui.components.actions.ActionParametersForm,
> path=4:theme:actionPromptModalWindow:content:parameters:inputForm]
> private java.lang.Object
> org.apache.wicket.MarkupContainer.children [class=java.util.ArrayList]
> private java.lang.Object
> org.apache.wicket.MarkupContainer.children[write:1]
> [class=org.apache.wicket.markup.repeater.RepeatingView,
> path=4:theme:actionPromptModalWindow:content:parameters:inputForm:parameters]
> private java.lang.Object
> org.apache.wicket.MarkupContainer.children [class=java.util.ArrayList]
> private java.lang.Object
> org.apache.wicket.MarkupContainer.children[write:1]
> [class=org.apache.wicket.markup.html.WebMarkupContainer,
> path=4:theme:actionPromptModalWindow:content:parameters:inputForm:parameters:1]
> private java.lang.Object
> org.apache.wicket.MarkupContainer.children
> [class=org.apache.isis.viewer.wicket.ui.components.scalars.valuechoices.ValueChoicesSelect2Panel,
>
> path=4:theme:actionPromptModalWindow:content:parameters:inputForm:parameters:1:scalarNameAndValue]
> java.lang.Object
> org.apache.wicket.Component.data [class=[Ljava.lang.Object;]
> java.lang.Object
> org.apache.wicket.Component.data[0]
> [class=org.apache.isis.viewer.wicket.model.models.ScalarParameterModel]
> private
> org.apache.isis.viewer.wicket.model.models.InlinePromptContext
> org.apache.isis.viewer.wicket.model.models.ScalarModel.inlinePromptContext
> [class=org.apache.isis.viewer.wicket.model.models.InlinePromptContext]
> private final
> org.apache.wicket.Component
> org.apache.isis.viewer.wicket.model.models.InlinePromptContext.scalarIfRegular
>
> [class=org.apache.isis.viewer.wicket.ui.components.widgets.bootstrap.FormGroup,
>
> path=4:theme:actionPromptModalWindow:content:parameters:inputForm:parameters:1:scalarNameAndValue:scalarTypeContainer:scalarIfRegular]
> private java.lang.Object
> org.apache.wicket.MarkupContainer.children [class=java.util.ArrayList]
> private java.lang.Object
> org.apache.wicket.MarkupContainer.children[write:1]
> [class=org.apache.isis.viewer.wicket.ui.components.widgets.select2.Select2ChoiceExt,
>
> path=4:theme:actionPromptModalWindow:content:parameters:inputForm:parameters:1:scalarNameAndValue:scalarTypeContainer:scalarIfRegular:scalarValue]
> private
> org.wicketstuff.select2.ChoiceProvider
> org.wicketstuff.select2.AbstractSelect2Choice.provider
> [class=org.apache.isis.viewer.wicket.ui.components.widgets.select2.providers.ObjectAdapterMementoProviderForValueChoices]
> private final
> org.apache.isis.core.commons.collections.Can
> org.apache.isis.viewer.wicket.ui.components.widgets.select2.providers.ObjectAdapterMementoProviderForValueChoices.choiceMementos
> [class=org.apache.isis.core.commons.collections.Can_Singleton]
> private final
> java.util.concurrent.atomic.AtomicReference
> org.apache.isis.core.commons.collections.Can_Singleton.singleton
> [class=java.util.concurrent.atomic.AtomicReference]
> private volatile
> java.lang.Object java.util.concurrent.atomic.AtomicReference.value
> [class=java.util.Optional] <----- field that is causing the problem
> {code}
>
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