diff --git a/core/src/main/scala/spark/executor/ExecutorExitCode.scala b/core/src/main/scala/spark/executor/ExecutorExitCode.scala
index 7fdc3b1d34165abfb48d4afe9d51d56da29ba851..fd76029cb34446e6c33f1c53cf593db1089d12b1 100644
--- a/core/src/main/scala/spark/executor/ExecutorExitCode.scala
+++ b/core/src/main/scala/spark/executor/ExecutorExitCode.scala
@@ -12,12 +12,15 @@ private[spark]
 object ExecutorExitCode {
   /** The default uncaught exception handler was reached. */
   val UNCAUGHT_EXCEPTION = 50
+
   /** The default uncaught exception handler was called and an exception was encountered while
       logging the exception. */
   val UNCAUGHT_EXCEPTION_TWICE = 51
+
   /** The default uncaught exception handler was reached, and the uncaught exception was an 
       OutOfMemoryError. */
   val OOM = 52
+
   /** DiskStore failed to create a local temporary directory after many attempts. */
   val DISK_STORE_FAILED_TO_CREATE_DIR = 53