Allow LockManager to throw IOException on errors

Author: slonopotamus

gitlfs-server/src/main/java/ru/bozaro/gitlfs/server/LockManager.java

@@ -21,17 +21,17 @@ public interface LockManager {
 
   interface LockRead {
     @NotNull
-    List<Lock> getLocks(@Nullable String path, @Nullable String lockId, @Nullable Ref ref);
+    List<Lock> getLocks(@Nullable String path, @Nullable String lockId, @Nullable Ref ref) throws IOException;
   }
 
   interface LockWrite extends LockRead {
     @NotNull
-    Lock lock(@NotNull String path, @Nullable Ref ref) throws LockConflictException;
+    Lock lock(@NotNull String path, @Nullable Ref ref) throws LockConflictException, IOException;
 
     @Nullable
-    Lock unlock(@NotNull String lockId, boolean force, @Nullable Ref ref) throws LockConflictException;
+    Lock unlock(@NotNull String lockId, boolean force, @Nullable Ref ref) throws LockConflictException, IOException;
 
     @NotNull
-    VerifyLocksResult verifyLocks(@Nullable Ref ref);
+    VerifyLocksResult verifyLocks(@Nullable Ref ref) throws IOException;
   }
 }

gitlfs-server/src/main/java/ru/bozaro/gitlfs/server/LocksServlet.java

@@ -99,7 +99,7 @@ private ResponseWriter deleteLock(@NotNull HttpServletRequest req, @NotNull Lock
   }
 
   @NotNull
-  private ResponseWriter listLocks(@NotNull HttpServletRequest req, @NotNull LockManager.LockRead lockRead) {
+  private ResponseWriter listLocks(@NotNull HttpServletRequest req, @NotNull LockManager.LockRead lockRead) throws IOException {
     final String refName = req.getParameter("refspec");
 
     final String path = req.getParameter("path");