From 88398e8ebef2109db3937c00bff63e119da7c2cf Mon Sep 17 00:00:00 2001
From: Albert Meltzer <7529386+kitbellew@users.noreply.github.com>
Date: Tue, 7 Dec 2021 16:19:18 -0800
Subject: [PATCH] InputMethod: original string could be empty

---
 scalafmt-cli/src/main/scala/org/scalafmt/cli/InputMethod.scala | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/scalafmt-cli/src/main/scala/org/scalafmt/cli/InputMethod.scala b/scalafmt-cli/src/main/scala/org/scalafmt/cli/InputMethod.scala
index f2dc198973..bd6988f292 100644
--- a/scalafmt-cli/src/main/scala/org/scalafmt/cli/InputMethod.scala
+++ b/scalafmt-cli/src/main/scala/org/scalafmt/cli/InputMethod.scala
@@ -91,7 +91,8 @@ object InputMethod {
       (code.linesIterator ++ last).toList.asJava
     }
     val a = jList(original, false)
-    val b = jList(revised, noEol(original.last)) // formatted always has EOL
+    // formatted always has EOL
+    val b = jList(revised, original.isEmpty || noEol(original.last))
     val diff = difflib.DiffUtils.diff(a, b)
     if (diff.getDeltas.isEmpty) ""
     else {