diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -87,6 +87,18 @@
 Or use `--nix`: since it won't use your globally installed JDK, it
 will have no trouble finding its own locally installed one.
 
+### Can't build sparkle on OS X
+
+OS X is not a supported platform for now. There are several issues to
+make sparkle work on OS X, tracked
+[in this ticket](https://github.com/tweag/sparkle/issues/12).
+
+### Gradle <= 2.12 incompatible with JDK 9
+
+If you're using JDK 9, note that you'll need to either downgrade to
+JDK 8 or update your Gradle version, since Gradle versions up to and
+including 2.12 are not compatible with JDK 9.
+
 ## License
 
 Copyright (c) 2015-2016 EURL Tweag.
diff --git a/build/libs/sparkle.jar b/build/libs/sparkle.jar
Binary files a/build/libs/sparkle.jar and b/build/libs/sparkle.jar differ
diff --git a/sparkle.cabal b/sparkle.cabal
--- a/sparkle.cabal
+++ b/sparkle.cabal
@@ -1,5 +1,5 @@
 name:                sparkle
-version:             0.1.0.1
+version:             0.2
 synopsis:            Distributed Apache Spark applications in Haskell
 description:         See README.md
 license:             BSD3
diff --git a/src/Control/Distributed/Spark/Context.hs b/src/Control/Distributed/Spark/Context.hs
--- a/src/Control/Distributed/Spark/Context.hs
+++ b/src/Control/Distributed/Spark/Context.hs
@@ -52,8 +52,8 @@
   res <- call sc "master" []
   reify res
 
-getOrCreate :: SparkConf -> IO SparkContext
-getOrCreate cnf = do
+getOrCreateSparkContext :: SparkConf -> IO SparkContext
+getOrCreateSparkContext cnf = do
   scalaCtx :: J ('Class "org.apache.spark.SparkContext") <-
     callStatic (sing :: Sing "org.apache.spark.SparkContext") "getOrCreate" [coerce cnf]
 
diff --git a/src/Control/Distributed/Spark/SQL/Context.hs b/src/Control/Distributed/Spark/SQL/Context.hs
--- a/src/Control/Distributed/Spark/SQL/Context.hs
+++ b/src/Control/Distributed/Spark/SQL/Context.hs
@@ -2,6 +2,7 @@
 {-# LANGUAGE FlexibleInstances #-}
 {-# LANGUAGE MultiParamTypeClasses #-}
 {-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE ScopedTypeVariables #-}
 
 module Control.Distributed.Spark.SQL.Context where
 
@@ -14,3 +15,10 @@
 
 newSQLContext :: SparkContext -> IO SQLContext
 newSQLContext sc = new [coerce sc]
+
+getOrCreateSQLContext :: SparkContext -> IO SQLContext
+getOrCreateSQLContext jsc = do
+  sc :: J ('Class "org.apache.spark.SparkContext") <- call jsc "sc" []
+  callStatic (classOf (undefined :: SQLContext))
+             "getOrCreate"
+             [coerce sc]