Fix Android SDK license in Circle CI (2)

circle.yml

@@ -1,9 +1,11 @@
 machine:
+    java:
+        version: oraclejdk8
+
+general:
     environment:
       - ANDROID_SDK: $HOME/.android
       - ANDROID_HOME: $HOME/.android
     pre:
       - mkdir -p "$ANDROID_SDK/licenses"
       - echo -e "\nd56f5187479451eabf01fb78af6dfcb131a6481e" > "$ANDROID_SDK/licenses/android-sdk-license"
-    java:
-        version: oraclejdk8