[udig-devel] GML loading - null pointer

[Jesse Eichar]

Hi Vince,

I'm afraid to say I'm not too surprised the GML datastore is quite  
brittle.  The Geotools datastore was never fully tested and  
supported.  Also it Requires that the XML schema for the file be  
present in order to process the file.   That is likely your problem  
because in practice this often is the case.

What can be done is the datastore can be modified so it generates a  
"best guess" schema based on the contents of the GML file.  Then it  
will be able to read the file.

Jesse

On Sep 5, 2007, at 3:20 AM, Vince Darley wrote:

> When trying to add a GML file (standard Ordnance Survey data from  
> UK) from disk to a map (using right-click 'Add...' -> File ->  
> select .gml file), I get a NullPointerException here:
>
> java.lang.NullPointerException
> at net.refractions.udig.catalog.internal.gml.GMLServiceImpl.members 
> (GMLServiceImpl.java:124)
> at net.refractions.udig.catalog.ui.workflow.ConnectionState.run 
> (ConnectionState.java:133)
> at net.refractions.udig.catalog.ui.workflow.Workflow.next 
> (Workflow.java:260)
> at net.refractions.udig.catalog.ui.workflow.Workflow$Runner.run 
> (Workflow.java:585)
> at net.refractions.udig.catalog.ui.workflow.Workflow.run 
> (Workflow.java:444)
> at net.refractions.udig.catalog.ui.FileConnectionPage$2.run 
> (FileConnectionPage.java:166)
> at net.refractions.udig.catalog.ui.workflow.WorkflowWizardDialog 
> $3.run(WorkflowWizardDialog.java:98)
> at net.refractions.udig.ui.PlatformGIS$1.call(PlatformGIS.java:90)
>
> caused by the 'ds' variable being null in the GMLServiceImpl.  This  
> is with udig1.1 rc11.
>
> any ideas?
>
> Vince.
>
>
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