Update Java version bundled found in the installer to a version >= 1.8u71

Update the bundled version of java to a version >= 1.8u71 (1.8 update 71), which fixes many security issues (http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html#AppendixJAVA).
Included in the security fixes is a fix for CVE-2016-0483 “An out-of-bounds write flaw was found in the JPEG image format decoder in the AWT component in OpenJDK. A specially crafted JPEG image could cause a Java application to crash or, possibly execute arbitrary code. An untrusted Java application or applet could use this flaw to bypass Java sandbox restrictions”.