private void modifyTable(final byte[] tableName, final FTable htd)
throws IOException {
FMasterServices services = TEST_UTIL.getMiniWaspCluster().getMaster();
ExecutorService executor = services.getExecutorService();
AtomicBoolean done = new AtomicBoolean(false);
executor.registerListener(EventType.C_M_MODIFY_TABLE,
new DoneListener(done));
admin.modifyTable(tableName, htd);
while (!done.get()) {
synchronized (done) {
try {