Make evaluator.apply synchronized to prevent any goofiness

1 files changed, 3 insertions, 2 deletions

diff --git a/libraries/eval/Eval.scala b/libraries/eval/Eval.scala
index 6d1bd6e..8d38caa 100644
--- a/libraries/eval/Eval.scala
+++ b/libraries/eval/Eval.scala
@@ -69,12 +69,13 @@ object Eval {
   private val compilerPath = jarPathOfClass("scala.tools.nsc.Interpreter")
   private val libPath = jarPathOfClass("scala.ScalaObject")
   private val jvmId = java.lang.Math.abs(new Random().nextInt())
+  private val md = MessageDigest.getInstance("SHA")
 
   /**
    * Eval[Int]("1 + 1") // => 2
    */
-  def apply[T](stringToEval: String): T = {
-    val md = MessageDigest.getInstance("SHA")
+  def apply[T](stringToEval: String): T = synchronized {
+    md.reset()
     val digest = md.digest(stringToEval.getBytes())
     val sha = new BigInteger(1, digest).toString(16)