**Actionable comments posted: 1**

🤖 Prompt for all review comments with AI agents

``` Verify each finding against the current code and only fix it if needed. Inline comments: In `@crypto/src/main/java/org/tron/common/crypto/SignUtils.java`: - Around line 51-55: Check for null before calling signatureInterface.getClass() in SignUtils: when validating that signatureInterface is an instance of ECDSASignature, replace the direct getClass() call in the error message with a null-safe expression (e.g., use (signatureInterface == null ? "null" : signatureInterface.getClass().getName())) or explicitly branch to throw an IllegalArgumentException stating the parameter is null; apply the same null-guard change to the second occurrence mentioned so neither the instanceof check nor the error formatting can cause a NullPointerException. ```

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR: - [ ] Push a commit to this branch (recommended) - [ ] Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

**Configuration used**: defaults **Review profile**: CHILL **Plan**: Pro **Run ID**: `4e22e54c-4b89-4830-ad7b-e88639c15d97`

📥 Commits

Reviewing files that changed from the base of the PR and between 3ab5adf8220f7b5bb07d0a66056bdf3d942996f3 and c8adb6c55c7ca0ad5b9f777d70e1564541658545.

📒 Files selected for processing (3)

* `crypto/src/main/java/org/tron/common/crypto/ECKey.java` * `crypto/src/main/java/org/tron/common/crypto/SignUtils.java` * `crypto/src/main/java/org/tron/common/crypto/sm2/SM2.java`

💤 Files with no reviewable changes (1)

* crypto/src/main/java/org/tron/common/crypto/ECKey.java