mulesoft/mule — pull request #1327 by pablokraan (2014-12-29 14:30:36+00:00)
Title: MULE-8179: NullPointerException thrown when using persistent object stor...

...e under high load

_ TreeBidiMap used to store file/key mapping is not thread safe and must be synchronized. All the operations must synchronize the access and maintain the ock until the files are properly write/read to avoid race conditions (this can affect performance)