org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream$ObjectCheckException

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  • org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream$ObjectCheckException: The object type is not Serializable! private java.lang.Object org.apache.wicket.MarkupContainer.children [class=[Ljava.lang.Object;]    private final org.apache.wicket.datetime.DateConverter org.apache.wicket.datetime.markup.html.form.DateTextField.converter[2] [class=com.testwebapp.web.panel.OpportunityDetailsPanel, path=1:opportunityDetailContainer]      private java.lang.Object org.apache.wicket.MarkupContainer.children [class=[Ljava.lang.Object;]        private java.lang.Object org.apache.wicket.MarkupContainer.children[0] [class=com.testwebapp.web.panel.TestDetailsPanel, path=1:opportunityDetailContainer:eventDetailPanel]          private java.lang.Object org.apache.wicket.MarkupContainer.children [class=[Ljava.lang.Object;]            java.lang.Object org.apache.wicket.Component.data[1] [class=com.testwebapp.web.panel.TestExportRawDataPanel, path=1:opportunityDetailContainer:eventDetailPanel:supRawDataContainer]              com.testwebapp.service.impl.TestDataServiceImpl com.testwebapp.web.panel.TestExportRawDataPanel.TestDataService [class=com.testwebapp.service.impl. ] <----- field that is causing the problem at org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream.internalCheck(CheckingObjectOutputStream.java:387)[wicket-core-6.10.0.jar:6.10.0]

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