Meet GaSubtle

GeneticAlgorithm
	.builder()
	.mutationPercentage(10) // the mutation percentage
	.maxOrder(5) // max order of the HOMs not to be exceeded
	.runRepeat(1) // how many time to run the algorithm [for benchmarking]
        // stopping conditions, at least one should be provided
	.requiredSubtleHoms(1000) // stopping condition: minimum subtle HOMs needed
	.maxHoms(1500) // stopping condition: maximum HOMs to generate
	.maxGeneration(300) // stopping condition: maximum generation to reach
	.timeout(1000) // stopping condition: timeout in seconds
	.originalFile("/some/.java/file") // path to the original file
	.testCasesPath("/some/.class/test/path") // path to test cases
	.resultPath("/some/path") // path to store the results in
	.mutantsPath("/some/path") // path to store the mutants in
	.evaluation(new EvaluationDefaultImpl())
	.crossover(new CrossoverDefaultImpl())
	.mutation(new MutationDefaultImpl())
	.selection(new TournamentSelection())
	.messageListener(new MessageListener() {

		@Override
		public void info(String value) {
                        System.out.println("Info message from the GA is: "+ value);
		}

		@Override
		public void error(String value) {
		    System.out.println("There was an error:" + value);
		}

		@Override
		public void debug(String value) {
		    System.out.println("Debugging: "+ value);
		}
	})
	.geneticAlgorithmListener((int generation, int populationSize, int liveMutants, int subtleMutants)
			-> LOG.info(String.format("Generation [%s] Population [%s] Live Mutants [%s] Subtle Mutants [%s]",
					generation, populationSize, liveMutants, subtleMutants)))
			.build()
	.run();