leventov commented on a change in pull request #6662: Double-checked locking
bug is fixed.
URL: https://github.com/apache/incubator-druid/pull/6662#discussion_r236307911
##########
File path:
processing/src/main/java/org/apache/druid/query/extraction/JavaScriptExtractionFn.java
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@@ -120,18 +120,14 @@ public String apply(@Nullable Object value)
* {@link #apply(Object)} can be called by multiple threads, so this
function should be thread-safe to avoid extra
* script compilation.
*/
- private void checkAndCompileScript()
+ private synchronized void checkAndCompileScript()
Review comment:
Same as in `JavaScriptAggregatorFactory`
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