From 79a08e9303f6ae1cc43a3b0c29ff4bb2f3f252f4 Mon Sep 17 00:00:00 2001
From: bailiu <bailiu@microsoft.com>
Date: Fri, 13 Mar 2020 11:40:10 -0700
Subject: [PATCH] allow empty URI query param

---
 .../com/microsoft/azure/relay/HybridConnectionUtil.java  | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/main/java/com/microsoft/azure/relay/HybridConnectionUtil.java b/src/main/java/com/microsoft/azure/relay/HybridConnectionUtil.java
index daa5b81..b350bd3 100644
--- a/src/main/java/com/microsoft/azure/relay/HybridConnectionUtil.java
+++ b/src/main/java/com/microsoft/azure/relay/HybridConnectionUtil.java
@@ -140,10 +140,13 @@ static Map<String, String> parseQueryString(String query) {
 		String[] pairs = query.split("&");
 		for (String pair : pairs) {
 			String[] keyValue = pair.split("=");
-			if (keyValue.length != 2) {
-				throw new IllegalArgumentException("invalid query to be parsed.");
+			if (keyValue.length == 1) {
+			    map.put(keyValue[0], "");
+			} else if (keyValue.length == 2) {
+			    map.put(keyValue[0], keyValue[1]);
+			} else {
+			    throw new IllegalArgumentException("invalid query to be parsed.");
 			}
-			map.put(keyValue[0], keyValue[1]);
 		}
 
 		return map;