How to overcome the untrusted certificate validation error in Performance Tester

Performance Tester is a performance test tool that measures the performance of an IT system by generating load on it and measuring the response times of the system under load. The performance tester generates load by simulating actions on the system of multiple simultaneous users. The main measures of performance are transaction response times and throughput.

Each user is simulated by a thread running a simple program called a script. In performance tester, scripts are created by recording the user actions that are to be tested. At the end of the recording, the script is generated automatically.
 
However, in some scenarios where the use-case demands downloading of a file (probably the application could open a new browser tab), the application under test might get into a “Not Responding” state and display the following security warning. ​

This warning might be seen when the browser is invoked by the recording action of the performance tester.
 
How do we overcome such security warnings related to the certificate validations?
 
Note that the performance tester installs its own Java (IBM Java) and is in the install folder of the performance tester (for example, C:\Program Files\IBM\SDP).  You must check whether you have updated Java on the machine where the performance tester is installed. Also, you must check the environment variables and ensure that the PATH variable is pointing to the correct IBM Java.

Alternatively, you can navigate to the Control Panel > Java > Security tab and add the URL of the website (application under test) in the Exception Site List field. ​
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This task would be required only if the Java update on the machine doesn’t address the problem. ​

Rajesh Avanthi
​Technical Architect

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Rajesh Avanthi is a Technical Architect for Test Workbench suite of Products with HCL Technologies, Products and Platforms division, working with global teams delivering L2 technical assistance focused on application performance testing and service virtualization technologies. He also performs Client Advocacy role assisting focal clients with required technical support and guidance, providing solutions to various customer queries.
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