Add this URL to your Eclipse Installation to reach this solution's update site.
Spring Tools 3 (Standalone Edition)
The Spring Tools 3 contain the previous generation Spring tooling for Eclipse, mostly focused on working with Spring apps configured using XML and providing validation support for various additional Spring projects, like Spring AOP, Spring Webflow, Spring Integration, etc.
Attention: this cannot be installed in addition to the new Spring Tools 4. If you want to combine both generations, please use the Spring Tools 3 Add-On for Spring Tools 4 marketplace entry.
Unsuccessful Installs in the last 7 Days: 146
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Submitted by Manoj Verma on Thu, 2020-01-16 03:58
Hi I am unable to install Spring tools plugin in eclipse 2019 12. I am getting below error:
Unable to read repository and .
sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target. How to fix this>
Submitted by Martin Lippert on Thu, 2020-01-23 05:34
This error is related to the local JDK installaiton not being able to validate the certificate, but you can tell your JDK to accept the certificate directly (if you search on stackoverflow for that error message, you will find a description how to do that for sure). Another option is to use the update site directly and use a non-https version of it to install the features manually into your Eclipse installation. The third option would be to download a ready-to-use Eclipse distribution that contains all the necessary parts pre-installed from https://spring.io/tools3/sts/all - or - even better - try the latest Spring Tools 4 version from https://spring.io/tools
Hope this helps!