FeatureSpecification spec = new FeatureSpecification();
try {
System.out.println("Reading feature spec from " + inputFeatureSpecFile);
InputStream inputFeatureSpec = new FileInputStream(inputFeatureSpecFile);
spec.load(inputFeatureSpec);
inputFeatureSpec.close();
} catch (FileNotFoundException e) {
System.err.println("Feature specification file " + inputFeatureSpecFile + " not found.");
System.exit(1);
} catch (InvalidObjectException e) {