I noticed this this morning when a Jenkins build failed on me: Download http://files.minecraftforge.net/maven/net/minecraftforge/forge/1.12.2-14.23.5.2772/forge-1.12.2-14.23.5.2772-userdev.jar FAILURE: Build failed with an exception. * What went wrong: Could not resolve all dependencies for configuration ':forgeGradleUserDevPackage'. > Could not download forge-userdev.jar (net.minecraftforge:forge:1.12.2-14.23.5.2772) > Could not close resource 'http://files.minecraftforge.net/maven/net/minecraftforge/forge/1.12.2-14.23.5.2772/forge-1.12.2-14.23.5.2772-userdev.jar'. > Premature end of Content-Length delimited message body (expected: 5199526; received: 86587 Trying with wget also reports an error, but wget auto-retries and manages to get the JAR ok.  Unfortunately, gradle (as run from Jenkins above, and also from the local command-line) gives up and fails the build immediately.  This seems to be pretty reproducable and happens both on my local machine and a remote Jenkins build server.   Something up with files.minecraftforge.net?