JNI mkdirs

app/src/main/java/eu/faircode/email/Log.java

@@ -245,6 +245,8 @@ public class Log {
 
     public static native void jni_safe_write(OutputStream os, byte[] data);
 
+    public static native boolean jni_safe_mkdirs(File file);
+
     public static native long[] jni_safe_runtime_stats();
 
     public static void setLevel(Context context) {
@@ -403,7 +405,6 @@ public class Log {
         return t.toSafeString() + "\n" + t.getSafeStackTraceString();
     }
 
-
     public static void persist(EntityLog.Type type, String message) {
         if (ctx == null)
             Log.e(message);
@@ -1932,6 +1933,8 @@ public class Log {
             db.endTransaction();
         }
 
+        Log.jni_safe_mkdirs(new File(context.getFilesDir(), "testing"));
+
         ServiceSynchronize.eval(context, "debuginfo");
 
         return draft;