drools-eclipse/org.guvnor.tools/src/org/guvnor/tools/actions/CompareVersionAction.java
public void run(IAction action) {
        if (selectedFile == null
           || props == null
           || targetPart == null) {
            return;
        }
        VersionChooserDialog dialog =
            new VersionChooserDialog(targetPart.getSite().getShell(),
                                    selectedFile.getName(),
                                    getVersionEntries());
        if (dialog.open() == VersionChooserDialog.OK) {
            compareWithSelectedVersion(dialog.getSelectedEntry());
        }
    }
public void run(IAction action) {
        if (selectedFile == null
           || props == null
           || targetPart == null) {
            return;
        }
        VersionChooserDialog dialog =
            new VersionChooserDialog(targetPart.getSite().getShell(),
                                    selectedFile.getName(),
                                    getVersionEntries());
        if (dialog.open() == VersionChooserDialog.OK) {
            compareWithSelectedVersion(dialog.getSelectedEntry());
        }
    }
/*
(non-Javadoc)
@see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction)