From 2f83759c6850ae219ff2261bccfa03172ec870f2 Mon Sep 17 00:00:00 2001
From: Sebastian Schuberth <sschuberth@gmail.com>
Date: Tue, 19 Mar 2019 22:10:44 +0100
Subject: [PATCH] BuildImageCmdImpl: Fix an exception message

The exception is thrown is if "dockerFile" is not a file, not if it is
not a directory.
---
 .../com/github/dockerjava/core/command/BuildImageCmdImpl.java   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/com/github/dockerjava/core/command/BuildImageCmdImpl.java b/src/main/java/com/github/dockerjava/core/command/BuildImageCmdImpl.java
index 2bafce8c85..0384ba1457 100644
--- a/src/main/java/com/github/dockerjava/core/command/BuildImageCmdImpl.java
+++ b/src/main/java/com/github/dockerjava/core/command/BuildImageCmdImpl.java
@@ -327,7 +327,7 @@ public BuildImageCmdImpl withDockerfile(File dockerfile) {
             throw new IllegalArgumentException("Dockerfile does not exist");
         }
         if (!dockerfile.isFile()) {
-            throw new IllegalArgumentException("Not a directory");
+            throw new IllegalArgumentException("Dockerfile is not a file");
         }
 
         if (baseDirectory == null) {