diff --git a/deadlock-plugins/deadlock-extension/src/core/keycloakOAuth2DeviceFlowConnection.ts b/deadlock-plugins/deadlock-extension/src/core/keycloakOAuth2DeviceFlowConnection.ts
index 9ff0ef5fc0e83b7ef9adbbef2197fc53206be95f..983debab52bb614f91b9b1e37b23f2278b08a5e4 100644
--- a/deadlock-plugins/deadlock-extension/src/core/keycloakOAuth2DeviceFlowConnection.ts
+++ b/deadlock-plugins/deadlock-extension/src/core/keycloakOAuth2DeviceFlowConnection.ts
@@ -95,7 +95,6 @@ export default class KeycloakOAuth2DeviceFlowConnection {
       });
       return Promise.resolve({ accessToken: this.accessToken, refreshToken: this.refreshToken });
     } catch (error) {
-      err(error);
       return Promise.reject(error);
     }
   }
@@ -152,38 +151,10 @@ export default class KeycloakOAuth2DeviceFlowConnection {
       userAuthenticationRequestResponseCode = userAuthenticationRequestResponse.status;
       switch (userAuthenticationRequestResponseCode) {
         case HttpStatusCode.BAD_REQUEST:
-          {
-            const badRequestResponse =
-              (await userAuthenticationRequestResponse.json()) as FailedAuthenticationReponseData;
-            log(`${badRequestResponse.error!}: ${badRequestResponse.error_description}`);
-            const errorCode = TokenFetchErrorCode[badRequestResponse.error!];
-            switch (errorCode) {
-              case TokenFetchErrorCode.invalid_client:
-              case TokenFetchErrorCode.invalid_grant:
-              case TokenFetchErrorCode.unsupported_grant_type: {
-                throw new Error('createUserAuthentication: ' + errorCode);
-              }
-              case TokenFetchErrorCode.authorization_pending: {
-                // I have to keep this `await sleep` and the while in the same function context
-                await sleep(this.waitDuration.getCurrentDuration());
-                continue;
-              }
-              case TokenFetchErrorCode.slow_down: {
-                this.waitDuration.increase();
-                await sleep(this.waitDuration.getCurrentDuration());
-                break;
-              }
-              default: {
-                throw new Error(`createUserAuthentication: Unhandled error code [ ${badRequestResponse.error} ]`);
-              }
-            }
-          }
+          await this.handleCreateUserAuthenticationBadRequest(userAuthenticationRequestResponse);
           break;
         case HttpStatusCode.OK: {
-          const successRequestResponse =
-            (await userAuthenticationRequestResponse.json()) as SuccessfulAuthenticationResponseData;
-          this.accessToken = successRequestResponse.access_token ?? '';
-          this.refreshToken = successRequestResponse.refresh_token ?? '';
+          await this.handleCreateUserAuthenticationSuccessRequest(userAuthenticationRequestResponse);
           break;
         }
         default: {
@@ -192,6 +163,38 @@ export default class KeycloakOAuth2DeviceFlowConnection {
       }
     }
   }
+
+  private async handleCreateUserAuthenticationBadRequest(userAuthenticationRequestResponse: Response) {
+    const badRequestResponse = (await userAuthenticationRequestResponse.json()) as FailedAuthenticationReponseData;
+    const errorCode = TokenFetchErrorCode[badRequestResponse.error!];
+    switch (errorCode) {
+      case TokenFetchErrorCode.invalid_client:
+      case TokenFetchErrorCode.invalid_grant:
+      case TokenFetchErrorCode.unsupported_grant_type: {
+        err(`${badRequestResponse.error!}: ${badRequestResponse.error_description}`);
+        throw new Error('createUserAuthentication: ' + errorCode);
+      }
+      case TokenFetchErrorCode.authorization_pending: {
+        await sleep(this.waitDuration.getCurrentDuration());
+        break;
+      }
+      case TokenFetchErrorCode.slow_down: {
+        this.waitDuration.increase();
+        await sleep(this.waitDuration.getCurrentDuration());
+        break;
+      }
+      default: {
+        throw new Error(`createUserAuthentication: Unhandled error code [ ${badRequestResponse.error} ]`);
+      }
+    }
+  }
+
+  private async handleCreateUserAuthenticationSuccessRequest(userAuthenticationRequestResponse: Response) {
+    const successRequestResponse =
+      (await userAuthenticationRequestResponse.json()) as SuccessfulAuthenticationResponseData;
+    this.accessToken = successRequestResponse.access_token ?? '';
+    this.refreshToken = successRequestResponse.refresh_token ?? '';
+  }
 }
 
 /**