Why does InetAddress.getLocalHost().getHostName() return a value different from bash “hostname”?

Question

I\'ve got a build.gradle task that works like a champ on my dev box at producing a properties file that records the name of the machine that the build was generated on. The

Answer 1

From the API documentation for InetAddress.getHostName();

If this InetAddress was created with a host name, this host name will be remembered and returned; otherwise, a reverse name lookup will be performed and the result will be returned based on the system configured name lookup service. If a lookup of the name service is required, call getCanonicalHostName.

So you may need to configure the DNS on the Jenkins server. The easiest way to do this is to edit /etc/hosts (I'm assuming your Jenkins runs on Linux) and make sure it looks like this:

127.0.0.1           localhost       localhost.localdomain
       .