[Core][test][minor] replace try finally block with tryWithSafeFinally

Author: Zhang, Liye <liye.zhang@intel.com>

Closes #5739 from liyezhang556520/trySafeFinally and squashes the following commits:

55683e5 [Zhang, Liye] replace try finally block with tryWithSafeFinally

core/src/test/scala/org/apache/spark/deploy/history/FsHistoryProviderSuite.scala

@@ -224,9 +224,9 @@ class FsHistoryProviderSuite extends FunSuite with BeforeAndAfter with Matchers
       EventLoggingListener.initEventLog(new FileOutputStream(file))
     }
     val writer = new OutputStreamWriter(bstream, "UTF-8")
-    try {
+    Utils.tryWithSafeFinally {
       events.foreach(e => writer.write(compact(render(JsonProtocol.sparkEventToJson(e))) + "\n"))
-    } finally {
+    } {
       writer.close()
     }
   }