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final FileExtensionsService fileExtensionsService = value.service( FileExtensionsService.class ); if( fileExtensionsService != null ) { fileExtensionsService.attach ( new Listener() { @Override public void handle( final Event event )
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filter.change( fileExtensionsService.extensions() ); treeViewer.refresh(); } }; fileExtensionsService.attach( listener ); tree.addDisposeListener ( new DisposeListener() {