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via GitHub by dashorst
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A child with id 'sideHeaderColumns' already exists: [OrganisatieMeeteenhedenTree [Component id = boom]]
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argument child may not be null
via Apache's JIRA Issue Tracker by GLEDSON BEZERRA DE OLIVEIRA RABELO, 1 year ago
A child 'TransparentWebMarkupContainer' with id 'wicket_relative_path_prefix_1' already exists: [BorderBodyContainer [Component id = myborder_body]]
via nabble.com by Unknown author, 1 year ago
via GitHub by gitblit
, 2 years ago
A child with id 'projectTitle' already exists: [Page class = com.gitblit.wicket.pages.BranchesPage, id = 16, version = 1, ajax = 0]
via GitHub by gitblit
, 1 year ago
A child with id 'projectTitle' already exists: [Page class = com.gitblit.wicket.pages.LogPage, id = 0, version = 1, ajax = 0]
java.lang.IllegalArgumentException: A child with id 'sideHeaderColumns' already exists:
[OrganisatieMeeteenhedenTree [Component id = boom]]	at org.apache.wicket.MarkupContainer.add(MarkupContainer.java:182)	at org.apache.wicket.extensions.markup.html.tree.table.TreeTable.addHeader(TreeTable.java:237)	at org.apache.wicket.extensions.markup.html.tree.table.TreeTable.onBeforeAttach(TreeTable.java:323)	at org.apache.wicket.extensions.markup.html.tree.AbstractTree.onBeforeRenderInternal(AbstractTree.java:612)	at org.apache.wicket.extensions.markup.html.tree.AbstractTree.access$300(AbstractTree.java:67)	at org.apache.wicket.extensions.markup.html.tree.AbstractTree$TreeItem.onBeforeRender(AbstractTree.java:341)	at org.apache.wicket.Component.internalBeforeRender(Component.java:949)