In 2019. I was given access to HP's FTP server with I cached in collage all I got done after all my course work was building Netbeans 8.1 with java and ant in contract with HPE. I'm still working with that contract it has no expiration date. Neatbeans uses XML to build java and the internet. There are about 75 projects in the Netbeans build. In older versions the 'build.xml' file is at the the root of the directory and uses Apache Ant. Today it's built in the nbbuild directory It's my belief that Visual Studio is Oracle Developer Studio or it's more liberal counterpart Oracle now Apache Netbeans. Stemming back from Visual Studio 4.0 for Alpha, MIPS and x86. You can also use SharpDevelop from Oracle I'm also still working my the 2003 SCO contract with 2003 which was probably finished with Vista but I had to go to college.I have until 2029 with SCO and Microsoft. I personally build netbeans with netbeans I build 8.1 with 8.0 and just ran the build target from within netbeans.