A simple way to get the jre without going through the headaches of oracle’s disabled direct downloads is this:

wget --no-cookies --no-check-certificate --header "Cookie: oraclelicense=accept-securebackup-cookie" "https://download.oracle.com/otn-pub/java/jdk/7u65-b17/jre-7u65-linux-x64.tar.gz"                                                  

You can check the latest links by going to Java SE Runtime Environment 8 Downloads Page for example ( others available on the Java SE Downloads Page ), clicking ‘Accept License Agreement’ and copying the links of the wanted files.