[Truffle] Enabling coverage needs to be synchronised or starting it c…

…ould race.
busbey · May 1, 2016 · b831fce · b831fce
1 parent 65ca155
commit b831fce
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/truffle/src/main/java/org/jruby/truffle/stdlib/CoverageManager.java b/truffle/src/main/java/org/jruby/truffle/stdlib/CoverageManager.java
@@ -63,7 +63,7 @@ public synchronized void setLineHasCode(LineLocation line) {
     }
 
     @CompilerDirectives.TruffleBoundary
-    public void enable() {
+    public synchronized void enable() {
         if (enabled) {
             return;
         }