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[p4-feedback] problems with PluginAnatomy#Writing_View_and_Tab_Plugins

Jean-Marc Vanel jeanmarc.vanel at
Sun Apr 11 05:54:10 PDT 2010

I played the scenario in

I need to report two problems.

*1. the template MANIFEST.MF file has package errors
The template for the MANIFEST.MF file can be downloaded from

This must be changed to reflect the last package name in OWLAPI 3 :

Require-Bundle: org.eclipse.equinox.registry,
* org.semanticweb.owl.owlapi*

Which means that this file is wrong on Protégé 4.1 Subversion:

In PluginAnatomy#Writing_View_and_Tab_Plugins the link points to the Protégé
4.0 depot :

Maybe a new file should be added to reflect the above package change for OWL

*2. class Metrics in examplelib.jar is also not in line with OWL API 3.0*

I get this when loading the example view :

Error logged
java.lang.*NoSuchMethodError*: org.semanticweb.owlapi.model.*
        at org.protege.owl.example.Metrics.recalculate(

        at org.protege.owl.example.Metrics.<init>(

It should probably be :

But the source code for this small class Metrics is not available anywhere !

I'll try to gain some ( possibly outdated ) information here :

Jean-Marc Vanel
Consulting, services, training,
Rule-based programming, Semantic Web
+33 (0)6 89 16 29 52 -- +33 (0)1 39 55 58 16
( we rarely listen to voice messages, please send a mail instead )
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