I'm using Neon. Updated my JDK to 1.8.0_131 ... and I tried the security update listed above. No joy. So tried downloading the zip & exploded it, then tried to manually import. Tried the content.jar, tried the artifacts.jar, then even tried the .zip file. Each time Eclipse came back and told me "Unable to read repository at ....!/content.xml" I'm dying here. Would someone tell SF & Tomcat to fix this issue.