Applied minor corrections

See:
https://github.com/cryptomator/cryptomator/pull/2996#discussion_r1273277251
https://github.com/cryptomator/cryptomator/pull/2996#discussion_r1273280687
https://github.com/cryptomator/cryptomator/pull/2996#discussion_r1273287847

src/main/java/org/cryptomator/common/mount/MountWithinParentUtil.java

@@ -65,8 +65,8 @@ public final class MountWithinParentUtil {
 			return false;
 		}
 		if (!Files.readAttributes(path, BasicFileAttributes.class, LinkOption.NOFOLLOW_LINKS).isOther()) {
-			checkIsDirectory(path);
-			checkIsEmpty(path);
+			checkIsMountPointDirectory(path);
+			checkIsMountPointEmpty(path);
 			return true;
 		}
 		if (Files.exists(path /* FOLLOW_LINKS */)) { //Both junction and target exist
@@ -119,7 +119,7 @@ public final class MountWithinParentUtil {
 		}
 	}
 
-	private static void checkIsDirectory(Path toCheck) throws IllegalMountPointException {
+	private static void checkIsMountPointDirectory(Path toCheck) throws IllegalMountPointException {
 		if (!Files.isDirectory(toCheck, LinkOption.NOFOLLOW_LINKS)) {
 			throw new MountPointNotEmptyDirectoryException(toCheck, "Mountpoint is not a directory: " + toCheck);
 		}
@@ -131,7 +131,7 @@ public final class MountWithinParentUtil {
 		}
 	}
 
-	private static void checkIsEmpty(Path toCheck) throws IllegalMountPointException, IOException {
+	private static void checkIsMountPointEmpty(Path toCheck) throws IllegalMountPointException, IOException {
 		try (var dirStream = Files.list(toCheck)) {
 			if (dirStream.findFirst().isPresent()) {
 				throw new MountPointNotEmptyDirectoryException(toCheck, "Mountpoint directory is not empty: " + toCheck);

src/main/resources/i18n/strings.properties

@@ -130,7 +130,7 @@ unlock.success.revealBtn=Reveal Drive
 unlock.error.customPath.message=Unable to mount vault to custom path
 unlock.error.customPath.description.notSupported=If you wish to keep using the custom path, please go to the preferences and select a volume type that supports it. Otherwise, go to the vault options and choose a supported mount point.
 unlock.error.customPath.description.notExists=The custom mount path does not exist. Either create it in your local filesystem or change it in the vault options.
-unlock.error.customPath.description.inUse=The custom mount path "%s" is already in use.
+unlock.error.customPath.description.inUse=The drive letter or custom mount path "%s" is already in use.
 unlock.error.customPath.description.hideawayNotDir=The temporary, hidden file "%3$s" used for unlock could not be removed. Please check the file and then delete it manually.
 unlock.error.customPath.description.couldNotBeCleaned=Your vault could not be mounted to the path "%s". Please try again or choose a different path.
 unlock.error.customPath.description.notEmptyDir=The custom mount path "%s" is not an empty folder. Please choose an empty folder and try again.

src/test/java/org/cryptomator/common/mount/MountWithinParentUtilTest.java

@@ -206,7 +206,6 @@ class MountWithinParentUtilTest {
 		var mount = Path.of("C:\\mount");
 		var hideaway = getHideaway(mount);
 
-		assertEquals(mount.getParent().toAbsolutePath(), Path.of("C:\\").toAbsolutePath());
 		assertEquals(mount.getParent(), hideaway.getParent());
 		assertEquals(mount.getParent().resolve(".~$mount.tmp"), hideaway);
 		assertEquals(mount.getParent().toAbsolutePath() + ".~$mount.tmp", hideaway.toAbsolutePath().toString());
@@ -218,7 +217,6 @@ class MountWithinParentUtilTest {
 		var mount = Path.of("/mount");
 		var hideaway = getHideaway(mount);
 
-		assertEquals(mount.getParent().toAbsolutePath(), Path.of("/").toAbsolutePath());
 		assertEquals(mount.getParent(), hideaway.getParent());
 		assertEquals(mount.getParent().resolve(".~$mount.tmp"), hideaway);
 		assertEquals(mount.getParent().toAbsolutePath() + ".~$mount.tmp", hideaway.toAbsolutePath().toString());