[Geotools-devel] [jira] Created: (GEOT-561) JAI dependency in CRS framework

[Martin D. (JIRA) <ji...@co...>]

JAI dependency in CRS framework
-------------------------------

         Key: GEOT-561
         URL: http://jira.codehaus.org/browse/GEOT-561
     Project: GeoTools
        Type: Bug
  Components: referencing  
    Versions: 2.1.M5    
    Reporter: Martin Desruisseaux
 Assigned to: Martin Desruisseaux 
    Priority: Minor
     Fix For: 2.1.RC0


The CRS framework should not have any JAI (Java Advanced Imaging) dependency. However, the following exception has been reported:

java.lang.NoClassDefFoundError: javax/media/jai/WarpAffine
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Unknown Source)
        at sun.misc.Service$LazyIterator.next(Unknown Source)
        at org.geotools.factory.FactoryRegistry.scanForPlugins(FactoryRegistry.java:420)
        at org.geotools.factory.FactoryRegistry.getServiceProviders(FactoryRegistry.java:114)
        at org.geotools.referencing.operation.MathTransformFactory.getProvider(MathTransformFactory.java:255)
        [...etc...]

This is probably caused by the following MathTransform provider, registered in META-INF/services/org.geotools.referencing.operation.MathTransformProvider

    org.geotools.referencing.operation.transform.WarpTransform2D$Provider

Just removing the above line from the META-INF/services/[...]MathTransformProvider file should do the trick as a short-term fix for the 2.1 branch. In the longer term, we need some mechanism on the trunk for avoiding this exception on installations without JAI. A try ... catch block in FactoryRegistry.scanForPlugins may do the trick.


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