tools
Removal of native2ascii tool
native2ascii tool is removed in JDK 9. JDK 9 supports UTF-8 based properties resource bundles (see JEP 226) and the conversion for UTF-8 based properties resource bundles to ISO-8859-1 is no longer needed.
官方解释
jdk9开始支持UTF8的properties不需要再转ISO-8859-1了