BuildImageCmdImpl: Fix an exception message

sschuberth · sschuberth · commit 2f83759c6850 · 2019-03-19T22:10:44.000+01:00
The exception is thrown is if "dockerFile" is not a file, not if it is
not a directory.
diff --git 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) {

Original file line number	Diff line number	Diff line change
`@@ -327,7 +327,7 @@ public BuildImageCmdImpl withDockerfile(File dockerfile) {`
`327`	`327`	`throw new IllegalArgumentException("Dockerfile does not exist");`
`328`	`328`	`}`
`329`	`329`	`if (!dockerfile.isFile()) {`
`330`		`- throw new IllegalArgumentException("Not a directory");`
	`330`	`+ throw new IllegalArgumentException("Dockerfile is not a file");`
`331`	`331`	`}`
`332`	`332`
`333`	`333`	`if (baseDirectory == null) {`