Question Re: class java.lang.nullpointerexception in Technology Q&A

class java.lang.nullpointerexception

Former Member — Thu, 12 Jan 2012 06:56:25 GMT

Hi All,

When clicked on Content Administration -> KM content, we are getting error

"Class java.lang.nullpointerexception"

at com.sapportals.wcm.rendering.uicommand.UICommandFactory.getGroupList(UICommandFactory.java:855)

at com.sapportals.wcm.rendering.uicommand.UICommandFactory.getGroupCommandByID(UICommandFactory.java:810)

at com.sapportals.wcm.rendering.uicommand.UICommandFactory.getGroupList(UICommandFactory.java:865)

at com.sapportals.wcm.rendering.uicommand.UICommandFactory.getGroupCommandByID(UICommandFactory.java:810)

at com.sapportals.wcm.rendering.uicommand.UICommandFactory.getGroupCommand(UICommandFactory.java:784)

at com.sapportals.wcm.rendering.uicommand.UIMenuFactory.getRenderMenu(UIMenuFactory.java:128)

at com.sapportals.wcm.rendering.control.cm.MenuBarControl.render(MenuBarControl.java:244)

at com.sapportals.wcm.rendering.layout.cm.MenuTreeListLayoutController.render(MenuTreeListLayoutController.java:102)

at com.sapportals.wcm.rendering.control.cm.WdfProxy.render(WdfProxy.java:1832)

The error is displayed intermittently.

Can anyone please help to resolve this issue

Re: class java.lang.nullpointerexception

p330068 — Thu, 12 Jan 2012 15:18:59 GMT

Dear Namrata

Please check the user assigned role. Also check the assign role permissions to identify the root cause for the issue.

Best Regards

Arun Jaiswal

Re: class java.lang.nullpointerexception

Former Member — Fri, 13 Jan 2012 06:42:54 GMT

Hi Arun,

thanks. We are facing this issue for all the users. Can you please let me know which permission should I check.

Re: class java.lang.nullpointerexception

p330068 — Fri, 13 Jan 2012 07:12:49 GMT

Dear Namrata,

Please check the content admin role permissions. try assigning super admin role n check it.

Best Regards,

Arun J.

Re: class java.lang.nullpointerexception

Former Member — Fri, 13 Jan 2012 12:42:30 GMT

Restart the Java instance.

Re: class java.lang.nullpointerexception

Former Member — Tue, 17 Jan 2012 08:45:15 GMT

Did you change something in KM configuration ?

Regarding the error, perhaps check command group:

System Admin --> System configuration

Knowledge Management -> Content management

User Interface -> Settings -> Layout set

Search for "ConsumerTreeList" ==> note that this layout set uses [Layout Controller: MenuTreeListLayoutController ]

But then check for example the ConsumerMenu (in Collection Renderer). There you have Mass Command Group: ConsumerMenuGroup --> clic on it. As command list you should have: [ConsumerViewGroup,ConsumerFolderGroup,ConsumerGotoGroup,ConsumerSearchGroup] in Command List

We get quite the same error after an upgrade. In the command list we put 2 commas between 2 commands groups.

If you go in edit mode, just change the description and save if there is a problem the system gives an error.

Good luck.

Re: class java.lang.nullpointerexception

Former Member — Mon, 30 Jan 2012 12:14:02 GMT

Resolved. Certain hot deployments were done which wanted server restart. After server restart, it worked fine.