diff --git a/appveyor.yml b/appveyor.yml
index 87beeb4d1..eb0ee8be7 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -59,6 +59,14 @@ before_build:
     dotnet --info
 
 
+    if ($LastExitCode -ne 0) {
+        throw "Last command failed."
+    }
+
+
+    java -version
+
+
     if ($LastExitCode -ne 0) {
         throw "Last command failed."
     }