public static Path getJdkHome() {
		if (getenv("JAVA_HOME") != null) {
			return Paths.get(getenv("JAVA_HOME"));
		} else {
			return null;
		}
	}
Returns the Path to JAVA_HOME

@return A Path pointing to JAVA_HOME or null if it isn't defined
src/main/java/dev/jbang/util/JavaUtil.java