Unable to lookup cached value: org/apache/commons/lang/StringUtils. Exception caught!

Products

• CA API Gateway

Issue/Introduction

Upgraded API Gateway from 11.1.1 to 11.2, after upgrade RemoteCacheAssertion is failing with Exception.

root@servername/opt/SecureSpan/Gateway/runtime/modules/assertions> ls -l |grep -i remote
-r--r--r-- 1 layer7 layer7 45738318 Feb 24  2023 RemoteCacheAssertion-1.5.3.aar

                    <l7:assertionResult
                        assertion="l7p:RemoteCacheLookup" status="Error in Assertion Processing">
                        <l7:detailMessage id="6">Unable to lookup cached value: org/apache/commons/lang/StringUtils.  Exception caught! </l7:detailMessage>
                    </l7:assertionResult>

SSG logs: shows 

2026-03-06T12:49:07.699-0500 WARNING 322  com.l7tech.server.MessageProcessor: 3016: Request routing failed with status -1 (Undefined)
2026-03-06T12:49:07.699-0500 WARNING 322  com.l7tech.server.message: Message was not processed: Undefined (-1)
2026-03-06T12:49:12.638-0500 SEVERE  424  com.l7tech.server.SoapMessageProcessingServlet: org/apache/commons/lang/StringUtils
2026-03-06T12:49:12.788-0500 SEVERE  453  com.l7tech.server.SoapMessageProcessingServlet: org/apache/commons/lang/StringUtils
2026-03-06T12:49:22.485-0500 SEVERE  529  com.l7tech.server.SoapMessageProcessingServlet: org/apache/commons/lang/StringUtils
2026-03-06T12:49:22.485-0500 WARNING 529  com.l7tech.server.message: Message was not processed: Undefined (-1)
2026-03-06T12:49:22.600-0500 SEVERE  538  com.l7tech.server.SoapMessageProcessingServlet: org/apache/commons/lang/StringUtils
2026-03-06T12:49:22.600-0500 WARNING 538  com.l7tech.server.message: Message was not processed: Undefined (-1)
2026-03-06T12:49:23.207-0500 SEVERE  542  com.l7tech.server.SoapMessageProcessingServlet: org/apache/commons/lang/StringUtils
2026-03-06T12:49:23.207-0500 WARNING 542  com.l7tech.server.message: Message was not processed: Undefined (-1)

Environment

CA API Gateway 11.2 

Cause

Version Compatibility

Resolution

Open a  support case to request RemoteCacheAssertion-1.5.9.aar  compatible with Gateway 11.2 version