Spring tool suite- SunCertPathBuilderException: unable to find valid certification path to requested target

Question

I am working on STS and while creating a new spring-boot project, it shows following error:

 SunCertPathBuilderException: unable to find valid certification          


        

Answer 1

In the case if none of above work, try below steps. It works fine for me as I was also working under corporate network, had same issue.

1. Close STS tool if open.
2. Locate STS.ini file (mostly where you have installed STS tool and have STS.exe)

3. Edit STS.ini. Add following two line at the bottom (Use your JDK location, below one is just a sample)

   -Djavax.net.ssl.trustStore=C:\Program Files\Java\jdk1.8.0_20\jre\lib\security\cacerts

   -Djava.net.ssl.trustStorePassword=changeit

4. Save STS.ini and restart the STS.exe.

It works in my case. Thank you.