title: Spring tool suite- SunCertPathBuilderException: unable to find valid certification path to requested target
body: <p>I am working on STS and while creating a new spring-boot project, it shows following error:</p>
  
  <pre><code> SunCertPathBuilderException: unable to find valid certification path to requested target
  </code></pre>
  
  <p>since it access <a href="https://start.spring.io" rel="noreferrer">https://start.spring.io</a> as a service URL.</p>
  
  <p>I am working in a corporate network and they have their own certificates and security rules. I looked into web but could not find any clear solution for STS. How should I add certification path in STS for  given URL.
  Any help is appreciated.</p>