Always specify locale in toUpperCase and toLowerCase (#556)

Not all of these changes are strictly needed to avoid the Turkish i issue
specifically, but it's good to be consistent.

1 files changed, 2 insertions, 1 deletions

diff --git a/enigma-server/src/main/java/cuchaz/enigma/network/DedicatedEnigmaServer.java b/enigma-server/src/main/java/cuchaz/enigma/network/DedicatedEnigmaServer.java
index af5e34b3..a3c38824 100644
--- a/enigma-server/src/main/java/cuchaz/enigma/network/DedicatedEnigmaServer.java
+++ b/enigma-server/src/main/java/cuchaz/enigma/network/DedicatedEnigmaServer.java
@@ -6,6 +6,7 @@ import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.util.List;
+import java.util.Locale;
 import java.util.concurrent.BlockingQueue;
 import java.util.concurrent.Executors;
 import java.util.concurrent.LinkedBlockingDeque;
@@ -102,7 +103,7 @@ public class DedicatedEnigmaServer extends EnigmaServer {
 
                                 if (Files.isDirectory(mappingsFile)) {
                                         mappingFormat = MappingFormat.ENIGMA_DIRECTORY;
-                                } else if (mappingsFile.getFileName().toString().toLowerCase().endsWith(".zip")) {
+                                } else if (mappingsFile.getFileName().toString().toLowerCase(Locale.ROOT).endsWith(".zip")) {
                                         mappingFormat = MappingFormat.ENIGMA_ZIP;
                                 } else {
                                         mappingFormat = MappingFormat.ENIGMA_FILE;