Home » Developer & Programmer » Forms » Vista Webutil_host.host error WUH-407 Output Sink is null (10g)
Vista Webutil_host.host error WUH-407 Output Sink is null [message #348468] Tue, 16 September 2008 18:28 Go to next message
bneary
Messages: 3
Registered: September 2008
Location: Vancouver
Junior Member
When executing the attached form under Vista I am getting the following error message: WUH-407 OutputSink is null. The command string is just a simple copy with the file destination name changing. cmd \c copy x:\temp\document1.doc x:\temp\document2.doc .

This appears to be a Vista only problem.
Re: Vista Webutil_host.host error WUH-407 Output Sink is null [message #348775 is a reply to message #348468] Wed, 17 September 2008 23:07 Go to previous messageGo to next message
djmartin
Messages: 10180
Registered: March 2005
Location: Canberra ACT Australia
Senior Member
Account Moderator
Does it work at the command line? Which version of Vista are you using ? Is Forms vertified for that version of Vista?

David
Re: Vista Webutil_host.host error WUH-407 Output Sink is null [message #349015 is a reply to message #348775] Thu, 18 September 2008 10:09 Go to previous messageGo to next message
bneary
Messages: 3
Registered: September 2008
Location: Vancouver
Junior Member
The copy command does work on the command line. The vista version is Window Vista Enterprise Service Pack 1.

I have been unable to find specific certification information for Vista but forms is certified with my version of java. The following is the configuration:

Window Vista Enterprise Service Pack 1
Java jre1.6.0_03
Oracle Application Server 10g Release 2 (10.1.2.0.2)
Form Builder 10.1.2.0.2
Re: Vista Webutil_host.host error WUH-407 Output Sink is null [message #349096 is a reply to message #349015] Thu, 18 September 2008 20:26 Go to previous messageGo to next message
djmartin
Messages: 10180
Registered: March 2005
Location: Canberra ACT Australia
Senior Member
Account Moderator
I googled 'WUH-407' and found http://www.oracle.com/technology/products/forms/htdocs/webutil/web_util.pdf which says
Quote:
WUH-407 OutputSink is null.
Type: Internal
Description: Could not get the output sink object from the HostCommand.
Resolution: This can only happen if the HostCommand object has not yet been executed. Only use the supplied APIs to call WebUtil Functions.

Are you using 'host' or 'client_host'? If the latter, then have you attached both the PLL and OLB?

David
Re: Vista Webutil_host.host error WUH-407 Output Sink is null [message #349299 is a reply to message #348775] Fri, 19 September 2008 14:27 Go to previous message
bneary
Messages: 3
Registered: September 2008
Location: Vancouver
Junior Member
I am using webutil_host.host function.

I've tested the process on another Vista PC and it works. I suspect a permissions problem and am investigating. It's possible that when my Form starts cmd.exe the executeable does not get the permission level to execute the copy. I've turned off vista's UAC but the problem is still there. There must be a configuration difference between the two Vista PC's.
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