try {
pgd.addClass("mrbench", MRBench.class, "A map/reduce benchmark that can create many small jobs");
pgd.addClass("nnbench", NNBench.class, "A benchmark that stresses the namenode.");
pgd.addClass("mapredtest", TestMapRed.class, "A map/reduce test check.");
pgd.addClass("clustertestdfs", ClusterTestDFS.class, "A pseudo distributed test for DFS.");
pgd.addClass("testfilesystem", TestFileSystem.class, "A test for FileSystem read/write.");
pgd.addClass("testsequencefile", TestSequenceFile.class, "A test for flat files of binary key value pairs.");
pgd.addClass("testsetfile", TestSetFile.class, "A test for flat files of binary key/value pairs.");
pgd.addClass("testarrayfile", TestArrayFile.class, "A test for flat files of binary key/value pairs.");
pgd.addClass("testrpc", TestRPC.class, "A test for rpc.");
pgd.addClass("testipc", TestIPC.class, "A test for ipc.");