I'm using JDev 12c on Windows 7 Pro and getting this error when I try to open task flow using UI Shell template:
javax.el.ELException: /file:C:/Users/dgress4/AppData/Roaming/JDeveloper/system12.1.3.0.41.140521.1008/DefaultDomain/servers/DefaultServer/tmp/_WL_user/ILS/zi1rs5/war/WEB-INF/lib/oracle-page-templates-ext.jar!/oracle/ui/pattern/dynamicShell/dynamicTabShell.jspx @273,126 value="#{viewScope.tabContext.tabs[0].binding.regionModel}": java.lang.NullPointerException
at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:114)
at org.apache.myfaces.trinidad.bean.FacesBeanImpl.getProperty(FacesBeanImpl.java:73)
at org.apache.myfaces.trinidad.component.UIXComponentBase.getProperty(UIXComponentBase.java:1912)
... more
(I can add the whole stack trace if requested.)
In the navigation part I just added a panelStretchLayout and a panelGroupLayout with a series of buttons. I created the Launcher class and the method as demo video explains:
| | private void _launchActivity(String title, String taskflowId, boolean newTab) |
| | { |
| | try { |
| | if (newTab) |
| | { |
| | TabContext.getCurrentInstance().addTab( |
| | title, |
| | taskflowId); |
| | } |
| | else |
| | { |
| | TabContext.getCurrentInstance().addOrSelectTab( |
| | title, |
| | taskflowId); |
| | } |
| | } |
| | catch (TabContext.TabOverflowException toe) |
| | { |
| | // causes a dialog to be displayed to the user saying that there are |
| | // too many tabs open - the new tab will not be opened... |
| | toe.handleDefault(); |
| | } |
| | } |
| public void launchXxxxList(ActionEvent actionEvent) |
| | { |
| | /** |
| | * Example method to call a single instance task flow. Note the boolean |
| | * to create another tab instance is set to false. The taskflow ID is used |
| | * to track whether to create a new tab or select an existing one. |
| | */ |
| | _launchActivity( |
| | "PDCN List Page", |
| | "/WEB-INF/xxxx-flow.xml#xxxx-flow", |
| | true); } |
The page gives and ADF-60097 error.
I did a google search and others have experienced this error but I saw no solutions. Is there at least a work around?
TIA,
David