Hi ,

Sorry for the noise. I think the bug I'm talking about is related to the 
recent modification to make column width persistent, not from the new 
tools in attribute toolbar.

If I load a file from disk, I don't get this NPE
If I create a new (in-memory) Layer, I get a NPE with the following 
stacktrace :

java.lang.NullPointerException
     at 
com.vividsolutions.jump.workbench.ui.AttributeTablePanel.initColumnWidths(AttributeTablePanel.java:432)
     at 
com.vividsolutions.jump.workbench.ui.AttributeTablePanel.<init>(AttributeTablePanel.java:316)
     at 
com.vividsolutions.jump.workbench.ui.AttributePanel.addTablePanel(AttributePanel.java:164)
     at 
com.vividsolutions.jump.workbench.ui.AttributePanel.layerAdded(AttributePanel.java:136)
     at 
com.vividsolutions.jump.workbench.ui.AttributeTab$5.layerAdded(AttributeTab.java:150)
     at 
com.vividsolutions.jump.workbench.ui.InfoModel.add(InfoModel.java:88)

PS : There is also an NPE already reported by Matthias on statistic tool 
if several layers are visible in the attribute view (info panel)

Michaël

Le 31/12/2011 11:54, Stefan Steiniger a écrit :
> mhm true,
>
> I just checked with Mac and if I open the attribute view and click on
> view schema, everything works - no NPE.
>
> stefan
>
> Am 31.12.11 11:17, schrieb Michaël Michaud:
>> Hi Giuseppe,
>>
>>> Finally I tested with another computer (with win7) and see this NPE.
>> Oh, I see. Maybe this is a bug related to a specific java version or a
>> specific OS. I observed it on Windows Vista + java 1.6.0_26.
>> Os-dependant bugs are generally more difficult to find and to fix (or to
>> workaround).
>>> When I changed the position of the attribute panel toolbar and added
>>> these tools here I didn't have any NPE error, honestly I tested only
>>> on Ubuntu (I have to reinstall windows). I wonder if I did a mistake
>>> not to verify on Window.
>> I'll try to have a look today. Currently, I only use windows. By chance,
>> Ede have a good experience on both linux and windows, and stefan uses a
>> mac, so that we have good opportunities to track bugs on any of these
>> platforms, but it supposes that all of us extensively test any modification.
>>
>> Michaël
>>> Peppe
>>>
>>> ------------------------------------------------------------------------
>>> *Da:* Michaël Michaud<michael.mich...@free.fr>
>>> *A:* jump-pilot-devel@lists.sourceforge.net
>>> *Inviato:* Venerdì 30 Dicembre 2011 19:11
>>> *Oggetto:* Re: [JPP-Devel] Feature Info Tool and Layer Attributes
>>> Statistics
>>>
>>> Hi,
>>>
>>> Thanks for explanation. Hope we'll get some other feedback on this
>>> subject.
>>>
>>>> *Save datasets* : I see no particular reason to have this button here
>>>> as it will save "any" modification, not just attribute modifications
>>>> and not just modifications made on active AttributePanel
>>>> *Undo/redo* : same remark. Moreover, currently, if you delete
>>>> features from the AttributePanel then click undo, features will be
>>>> restored in the LayerViewPanel but not in AttributePanel.
>>>>
>>>> - I can reverse these modifications. The idea is to use
>>>> AttributePanel for tables with no datasource (we still don't have
>>>> something similar, I wanted to test Dante Fuster Import Excel file
>>>> for that). As Stefan mentioned it is possible to duplicate the
>>>> classes. I follow this way.
>>> I think you mean tables with no "geometry". This feature has to be
>>> discussed. I don't know what is the best approach, creating a specific
>>> FeatureCollections, or using normal FeatureCollections with empty
>>> geometries.
>>> Anyhow, savedatasets saves modified FeatureCollections having a
>>> datasource (linked to a file). So currently, it is not specific to
>>> pure attribute table, and its action is not restricted to tables
>>> visible in the attribute panel.
>>>> - undo/redo works. If you delete a feature from Attribute Panel and
>>>> click undu, the attribute is restored at the bottom of the table)
>>> You're right, the behaviour I described is for Info Panel, not
>>> Attribute Panel. I still think undo/redo is not necessary at this
>>> place, but it is OK for Attribute Panel if other users think it's
>>> useful. But it is not adapted to Info Panel.
>>> If I remember correctly, it may not be easy to have different
>>> behaviours in Attribute Panel and in Info Panel.
>>>
>>> Most important thing now is to fix the NPE, and to see if we can
>>> define behaviours fitting exactly what we want for attribute panel
>>> (only one layer) and for info panel (where several layers can be
>>> displayed).
>>>
>>> Michaël
>>>> *View/Edit schema* : very useful for ViewAttribute plugin, not
>>>> working (NPE) for InfoPanel if several layers are displayed (should
>>>> not be available for InfoPanel IMHO)
>>>> - View/Edit schema is also activated using right click on View
>>>> Attribute panel. I think that a view/edit schema button on the
>>>> toolbar is more visible.
>>>>
>>>> *Statistics *: very good idea for ViewAttribute plugin, not working
>>>> (NPE) for InfoPanel if several layers are displayed (should not be
>>>> available for InfoPanel IMHO)
>>>> - I like the idea to add Attribute plugins as button on the Attribute
>>>> panel toolbar. I did some tests on OJ jufre (add area/perimeter or
>>>> calculator plugins). But there are still some problems to solve
>>>> (values not correctly displayed, etc).
>>>>
>>>> Peppe
>>>>
>>>>
>>>>
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