### Question:
ParameterResource { @GET @Path("/{algorithmFileName}") @Produces(Constants.APPLICATION_JSON_RESOURCE_PATH) public ArrayList<ConfigurationRequirement<?>> retrieveParameters( @PathParam("algorithmFileName") String algorithmFileName) { try { AlgorithmJarLoader jarLoader = new AlgorithmJarLoader(); Algorithm algorithm = jarLoader.loadAlgorithm(algorithmFileName); return algorithm.getConfigurationRequirements(); } catch (Exception e) { e.printStackTrace(); throw new WebException(e, Response.Status.BAD_REQUEST); } }  @GET @Path("/{algorithmFileName}") @Produces(Constants.APPLICATION_JSON_RESOURCE_PATH) ArrayList<ConfigurationRequirement<?>> retrieveParameters(
    @PathParam("algorithmFileName") String algorithmFileName); @GET @Path("/{algorithmFileName}/authors-description") @Produces(Constants.APPLICATION_JSON_RESOURCE_PATH) Map<String, String> retrieveAuthorAndDescription(@PathParam("algorithmFileName") String algorithmFileName);  }### Answer:
@Test public void testRetrieveUniqueColumnCombinationsParameters() throws AlgorithmExecutionException { ParameterResource parameterService = new ParameterResource(); List<ConfigurationRequirement<?>> inputParameters = parameterService.retrieveParameters("example_ucc_algorithm.jar"); assertNotNull(inputParameters); assertFalse(inputParameters.isEmpty()); assertNotNull(inputParameters.get(0)); }