assertTrue("User should be granted permission: " + upToVerify.toString(),
hasFoundUserPermission(upToVerify, perms));
acl = new HTable(conf, AccessControlLists.ACL_TABLE_NAME);
try {
BlockingRpcChannel service = acl.coprocessorService(tableName.getName());
AccessControlService.BlockingInterface protocol =
AccessControlService.newBlockingStub(service);
ProtobufUtil.revoke(protocol, user.getShortName(), tableName, family1, qualifier,
Permission.Action.WRITE, Permission.Action.READ);
perms = ProtobufUtil.getUserPermissions(protocol, tableName);