Do not parse server binary if not available

Fix #57
tomsik68 · Aug 5, 2019 · cb757f0 · cb757f0
1 parent 86fd9aa
commit cb757f0
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/main/java/sk/tomsik68/mclauncher/impl/versions/mcdownload/MCDownloadVersion.java b/src/main/java/sk/tomsik68/mclauncher/impl/versions/mcdownload/MCDownloadVersion.java
@@ -110,7 +110,9 @@ static MCDownloadVersion fromJson(JSONObject json) {
         if (json.containsKey("downloads")) {
             JSONObject downloads = (JSONObject) json.get("downloads");
             builder.client = Artifact.fromJson((JSONObject) downloads.get("client"));
-            builder.server = Artifact.fromJson((JSONObject) downloads.get("server"));
+            // old_alpha versions do not provide server binaries
+            if (downloads.containsKey("server"))
+                builder.server = Artifact.fromJson((JSONObject) downloads.get("server"));
         }
 
         if (json.containsKey("incompatibilityReason"))