Throw cancelation.

Author: dkocher

core/src/main/java/ch/cyberduck/core/vault/JWKCallback.java

@@ -18,19 +18,21 @@
 import ch.cyberduck.core.Host;
 import ch.cyberduck.core.LoginOptions;
 import ch.cyberduck.core.PasswordCallback;
+import ch.cyberduck.core.exception.ConnectionCanceledException;
 import ch.cyberduck.core.exception.LoginCanceledException;
+import ch.cyberduck.core.exception.UnsupportedException;
 
 public interface JWKCallback extends PasswordCallback {
 
     @Override
     JWKCredentials prompt(Host bookmark, String title, String reason, LoginOptions options) throws LoginCanceledException;
 
-    static JWKCallback cast(PasswordCallback callback) {
+    static JWKCallback cast(PasswordCallback callback) throws ConnectionCanceledException {
         if(callback instanceof JWKCallback) {
             return (JWKCallback) callback;
         }
         else {
-            throw new IllegalArgumentException("Unsupported metadata type " + callback.getClass());
+            throw new ConnectionCanceledException(new UnsupportedException(callback.getClass().getName()));
         }
     }
 }

cryptomator/src/main/java/ch/cyberduck/core/cryptomator/impl/uvf/VaultMetadataUVFProvider.java

@@ -15,6 +15,8 @@
  * GNU General Public License for more details.
  */
 
+import ch.cyberduck.core.exception.ConnectionCanceledException;
+import ch.cyberduck.core.exception.UnsupportedException;
 import ch.cyberduck.core.vault.VaultMetadataProvider;
 
 public interface VaultMetadataUVFProvider extends VaultMetadataProvider {
@@ -25,12 +27,12 @@ public interface VaultMetadataUVFProvider extends VaultMetadataProvider {
 
     String getDirPath();
 
-    static VaultMetadataUVFProvider cast(VaultMetadataProvider provider) {
+    static VaultMetadataUVFProvider cast(VaultMetadataProvider provider) throws ConnectionCanceledException {
         if(provider instanceof VaultMetadataUVFProvider) {
             return (VaultMetadataUVFProvider) provider;
         }
         else {
-            throw new IllegalArgumentException("Unsupported metadata type " + provider.getClass());
+            throw new ConnectionCanceledException(new UnsupportedException(provider.getClass().getName()));
         }
     }
 }