Renamed NO_PARENT_NO_MOUNT_POINT to UNUSED_ROOT_DIR in MountPointRequirement

src/main/java/org/cryptomator/common/mountpoint/CustomMountPointChooser.java

@@ -56,7 +56,7 @@ class CustomMountPointChooser implements MountPointChooser {
 				throw new InvalidMountPointException(new IllegalStateException("Illegal MountPointRequirement"));
 			}
 			default -> {
-				//Currently the case for "NO_PARENT_NO_MOUNT_POINT, PARENT_OPT_MOUNT_POINT"
+				//Currently the case for "UNUSED_ROOT_DIR, PARENT_OPT_MOUNT_POINT"
 				throw new InvalidMountPointException(new IllegalStateException("Not implemented"));
 			}
 		}

src/main/java/org/cryptomator/common/mountpoint/TemporaryMountPointChooser.java

@@ -65,7 +65,7 @@ class TemporaryMountPointChooser implements MountPointChooser {
 					throw new InvalidMountPointException(new IllegalStateException("Illegal MountPointRequirement"));
 				}
 				default -> {
-					//Currently the case for "NO_PARENT_NO_MOUNT_POINT, PARENT_OPT_MOUNT_POINT"
+					//Currently the case for "UNUSED_ROOT_DIR, PARENT_OPT_MOUNT_POINT"
 					throw new InvalidMountPointException(new IllegalStateException("Not implemented"));
 				}
 			}

src/main/java/org/cryptomator/common/vaults/DokanyVolume.java

@@ -86,7 +86,7 @@ public class DokanyVolume extends AbstractVolume {
 
 	@Override
 	public MountPointRequirement getMountPointRequirement() {
-		return this.vaultSettings.getWinDriveLetter().isPresent() ? MountPointRequirement.NO_PARENT_NO_MOUNT_POINT : MountPointRequirement.EMPTY_MOUNT_POINT;
+		return this.vaultSettings.getWinDriveLetter().isPresent() ? MountPointRequirement.UNUSED_ROOT_DIR : MountPointRequirement.EMPTY_MOUNT_POINT;
 	}
 
 	public static boolean isSupportedStatic() {

src/main/java/org/cryptomator/common/vaults/FuseVolume.java

@@ -126,7 +126,7 @@ public class FuseVolume extends AbstractVolume {
 		if (!SystemUtils.IS_OS_WINDOWS) {
 			return MountPointRequirement.EMPTY_MOUNT_POINT;
 		}
-		return this.vaultSettings.getWinDriveLetter().isPresent() ? MountPointRequirement.NO_PARENT_NO_MOUNT_POINT : MountPointRequirement.PARENT_NO_MOUNT_POINT;
+		return this.vaultSettings.getWinDriveLetter().isPresent() ? MountPointRequirement.UNUSED_ROOT_DIR : MountPointRequirement.PARENT_NO_MOUNT_POINT;
 	}
 
 	public static boolean isSupportedStatic() {

src/main/java/org/cryptomator/common/vaults/MountPointRequirement.java

@@ -9,7 +9,7 @@ public enum MountPointRequirement {
 	/**
 	 * The Mountpoint needs to be a filesystem root and must not exist.
 	 */
-	NO_PARENT_NO_MOUNT_POINT,
+	UNUSED_ROOT_DIR,
 
 	/**
 	 * No Mountpoint on the local filesystem required. (e.g. WebDAV)

src/main/java/org/cryptomator/ui/unlock/UnlockInvalidMountPointController.java

@@ -42,14 +42,14 @@ public class UnlockInvalidMountPointController implements FxController {
 	}
 
 	public boolean getDriveLetterOccupied() {
-		return getMountPointRequirement() == MountPointRequirement.NO_PARENT_NO_MOUNT_POINT;
+		return getMountPointRequirement() == MountPointRequirement.UNUSED_ROOT_DIR;
 	}
 
 	private MountPointRequirement getMountPointRequirement() {
 		var requirement = vault.getVolume().orElseThrow(() -> new IllegalStateException("Invalid Mountpoint without a Volume?!")).getMountPointRequirement();
 		assert requirement != MountPointRequirement.NONE; //An invalid MountPoint with no required MountPoint doesn't seem sensible
 		assert requirement != MountPointRequirement.PARENT_OPT_MOUNT_POINT; //Not implemented anywhere (yet)
-		assert requirement != MountPointRequirement.NO_PARENT_NO_MOUNT_POINT || SystemUtils.IS_OS_WINDOWS; //Not implemented anywhere, but on Windows
+		assert requirement != MountPointRequirement.UNUSED_ROOT_DIR || SystemUtils.IS_OS_WINDOWS; //Not implemented anywhere, but on Windows
 
 		return requirement;
 	}

src/main/java/org/cryptomator/ui/unlock/UnlockWorkflow.java

@@ -83,7 +83,7 @@ public class UnlockWorkflow extends Task<Boolean> {
 		var requirement = vault.getVolume().orElseThrow(() -> new IllegalStateException("Invalid Mountpoint without a Volume?!", impExc)).getMountPointRequirement();
 		assert requirement != MountPointRequirement.NONE; //An invalid MountPoint with no required MountPoint doesn't seem sensible
 		assert requirement != MountPointRequirement.PARENT_OPT_MOUNT_POINT; //Not implemented anywhere (yet)
-		assert requirement != MountPointRequirement.NO_PARENT_NO_MOUNT_POINT || SystemUtils.IS_OS_WINDOWS; //Not implemented anywhere, but on Windows
+		assert requirement != MountPointRequirement.UNUSED_ROOT_DIR || SystemUtils.IS_OS_WINDOWS; //Not implemented anywhere, but on Windows
 
 		Throwable cause = impExc.getCause();
 		// TODO: apply https://openjdk.java.net/jeps/8213076 in future JDK versions
@@ -95,7 +95,7 @@ public class UnlockWorkflow extends Task<Boolean> {
 			}
 			showInvalidMountPointScene();
 		} else if (cause instanceof FileAlreadyExistsException) {
-			if (requirement == MountPointRequirement.NO_PARENT_NO_MOUNT_POINT) {
+			if (requirement == MountPointRequirement.UNUSED_ROOT_DIR) {
 				LOG.error("Unlock failed. Drive Letter already in use: {}", cause.getMessage());
 			} else {
 				LOG.error("Unlock failed. Mountpoint already exists: {}", cause.getMessage());