3007243 - Error retrieving certificates after changing SSLContext.properties file

Using SAP PI/PO for REST receiver adapter or SOAP adapter, it was observed the message processing fails with SSL-related errors. In Communication Channel Monitoring, the system throws the following message:

“Message processing failed. Cause: com.sap.aii.adapter.rest.ejb.security.SSLException: SSL-enabled call failed. Error while configuring SSL client. Error retrieving certificates.”

DefaultTrace logs show exceptions similar to:

15:34:00:371   ~nnel.Error retrieving certificates: Catching java.security.GeneralSecurityException: Error retrieving certificates:
at com.sap.aii.adapter.rest.ejb.security.IAIKSocketFactory.generateSSLContentxt(IAIKSocketFactory.java:156)
at com.sap.aii.adapter.rest.ejb.security.IAIKSocketFactory.<init>(IAIKSocketFactory.java:48)
at com.sap.aii.adapter.rest.ejb.receiver.RESTReceiverChannel.initalizeSSLfactory(RESTReceiverChannel.java:228)
at com.sap.aii.adapter.rest.ejb.receiver.RESTReceiverChannel.getSecureSocketFactory(RESTReceiverChannel.java:213)...
...at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:302)
Caused by: java.lang.IllegalArgumentException: Error loading config file: java.lang.Throwable: Cannot read config file "/usr/sap/<SID>/SYS/global/security/lib/tools/SSLContext.properties"!
at iaik.security.ssl.SSLContext.<init>(SourceFile:725)

• SAP NetWeaver
• SAP Process Integration

SSL error, SSLContext.properties, REST Receiver Adapter, SAP PI, SAP PO, Error retrieving certificates, SSL configuration, IAIKSocketFactory, SNI issue, SSL client initialization failure, SAP PI REST adapter SSL, SAP PO REST SSL error; , KBA , BC-XI-CON-AFW-SEC , Security , BC-JAS-SEC-CPG , Cryptography , Problem