No not really. The employer has some documentation, it is not complete but is starting point when issues pop up. For example, a JDK neeed to have special certif

No not really. The employer has some documentation, it is not complete but is starting point when issues pop up. For example, a JDK neeed to have special certificates installed if Java tries to talk SSL. And when you juggle with different JDKs for different Java versions it becomes a nightmare. The best you can do is to try not to touch anything when it eventually works but eventually something unforeseen breaks it anyways.