From 3a22cf241efecee453ca8352f390b5462cbd459c Mon Sep 17 00:00:00 2001
From: Marco Vermeulen <vermeulen.mp@gmail.com>
Date: Wed, 30 Dec 2015 00:27:33 +0000
Subject: [PATCH] Improve validation of offline qualifier paramater.

---
 src/main/bash/sdkman-main.sh | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/main/bash/sdkman-main.sh b/src/main/bash/sdkman-main.sh
index dd1f005c..7716c72f 100644
--- a/src/main/bash/sdkman-main.sh
+++ b/src/main/bash/sdkman-main.sh
@@ -97,9 +97,8 @@ function sdk {
 		return 1
 	fi
 
-	if [[ "$COMMAND" == "offline" &&  -z "$QUALIFIER" ]]; then
-		echo -e "\nStop! Specify a valid offline mode."
-	elif [[ "$COMMAND" == "offline" && ( -z $(echo "enable disable" | grep -w "$QUALIFIER")) ]]; then
+	# Validate offline qualifier
+	if [[ "$COMMAND" == "offline" && -n "$QUALIFIER" && -z $(echo "enable disable" | grep -w "$QUALIFIER") ]]; then
 		echo -e "\nStop! $QUALIFIER is not a valid offline mode."
 	fi