Can't Build Vaadin Apps - Maven Repo Gone

General
1

Does anybody know what’s going on with maven central. Cannot build Vaadin apps. Maven changed their URL. I updated my build scripts (Gradle) but Vaadin will not compile due to missing dependencies.

> Could not resolve all files for configuration ':MY_UI:vaadin-theme-compiler'.
   > Could not resolve com.vaadin:vaadin-sass-compiler:+.
     Required by:
         project :MY_UI
      > Failed to list versions for com.vaadin:vaadin-sass-compiler.
         > Unable to load Maven meta-data from http://central.maven.org/maven2/com/vaadin/vaadin-sass-compiler/maven-metadata.xml.
            > Could not HEAD 'http://central.maven.org/maven2/com/vaadin/vaadin-sass-compiler/maven-metadata.xml'. Received status code 501 from server: HTTPS Required
2

Maven switches to https, since 16.01.2020 SSL is mandandory - see the exact error message. HTTPS Required

For more details:

https://support.sonatype.com/hc/en-us/articles/360041287334-Central-501-HTTPS-Required

https://stackoverflow.com/questions/59763531/maven-dependencies-are-failing-with-a-501-error

3

The problem was partly resolved by updating the gradle repositories for the project. However, the other part of the problem is that Vaadin 7/8 are built on top of GWT which is a dead project, which makes Vaadin 7/8 dead as well. GWT does not support any version of Java past 8. So, until we are able to move to a newer version of Vaadin our product is also dead. Not good.