Error: Unable to resolve requested uri using Fast Resolve Assertion on Layer7 API Gateway 11.2.1

Products

• CA API Gateway

Issue/Introduction

When upgrading to v11.2.1, API calls using the Fast Resolve tactical assertion fail. This typically occurs when resolving complex URI patterns such as /api/*/yyy. The gateway logs indicate a failure to resolve the requested URI. This article provides the compatible assertion version required for Java 21 environments and addresses a known Policy Manager UI defect.

Symptoms:

• API calls return error: Unable to resolve requested uri.
• Legacy tactical assertion versions (e.g., 9.3.00) fail after Gateway upgrade.

Environment

• Layer7 API Gateway 11.2.x
• Java 21
• FastResolveServiceAssertion (Tactical)

Cause

The legacy tactical assertion builds are incompatible with the Java 21 runtime introduced in Gateway 11.2.x. Additionally, earlier 11.2-compatible builds contained a UI bug that prevented property persistence in the Policy Manager.

Resolution

Fixed in FastResolveServiceAssertion version 11.2.1.26071 and higher.

To resolve the issue, install the updated modular assertion:

1. Request the  FastResolveServiceAssertion-11.2.1.26071.saar by raising a support case 
2. Open the Policy Manager.
3. Navigate to Tasks > Extensions and Add-Ons > Manage Modular Assertions.
4. Click Install and select the .saar file.
5. Restart the Gateway service if prompted: service ssg restart.
6. Verify that URI resolution for endpoints like /api/*/yyy functions correctly.