From e5f4cd0fdae7e689789dd74bfbcfa6c52895f037 Mon Sep 17 00:00:00 2001
From: Szilard Nemeth <snemeth@apache.org>
Date: Fri, 9 Aug 2019 12:13:37 +0200
Subject: [PATCH] SUBMARINE-57. Add more elaborate message if submarine command
 is not recognized. Contributed by Adam Antal

---
 .../java/org/apache/hadoop/yarn/submarine/client/cli/Cli.java   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hadoop-submarine/hadoop-submarine-core/src/main/java/org/apache/hadoop/yarn/submarine/client/cli/Cli.java b/hadoop-submarine/hadoop-submarine-core/src/main/java/org/apache/hadoop/yarn/submarine/client/cli/Cli.java
index 593fb89c64..b1fd90f7c1 100644
--- a/hadoop-submarine/hadoop-submarine-core/src/main/java/org/apache/hadoop/yarn/submarine/client/cli/Cli.java
+++ b/hadoop-submarine/hadoop-submarine-core/src/main/java/org/apache/hadoop/yarn/submarine/client/cli/Cli.java
@@ -100,7 +100,7 @@ public static void main(String[] args) throws Exception {
       }
     } else {
       printHelp();
-      throw new IllegalArgumentException("Bad parameters <TODO>");
+      throw new IllegalArgumentException("Unrecognized option: " + args[0]);
     }
   }
 }