https://docs.oracle.com/javase/8/docs/api/java/net/FileNameMap.html
FileNameMap (Java Platform SE 8 )
java platformse
https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/net/FileNameMap.html
FileNameMap (Java SE 11 & JDK 11 )
java sejdk