IOException message not printed correctly when using Java 9 on Windows 10 set to Japan locale and language

问题

An Exception is thrown in this particular block.

   try
   {
       transport.m_readListener.onReadTransport(transport);
   }
   catch (IOException e)
   {
       ->onIOException(e,transport);
   }

The onIOException() method puts it on the log:

    private void onIOException(IOException e, AbstractConnection connection)
    {
        String reason = e.getMessage();
        ...
        log.error("Closing ",connection," because ",reason);
    }

The reason variable in Java 8 shows a correct japanese phrase:

reason : 既存の接続はリモート ホストに強制的に切断されました。 (meaning: The existing connection was forcibly disconnected to the remote host)

When ran on Java 9, the exception message is now broken:

reason : 譌｢蟄倥?ｮ謗･邯壹?ｯ繝ｪ繝｢繝ｼ繝? 繝帙せ繝医↓蠑ｷ蛻ｶ逧?縺ｫ蛻?譁ｭ縺輔ｌ縺ｾ縺励◆縲?

The code block that checks if the Socket port is still open is inside a try catch block that catches the IOException. The message from the IOException is acquired via

    String reason = e.getMessage();
    if (null == reason) reason = e.toString();

Tried running the app with java.locale.providers=COMPAT,CLDR,SPI to make it behave like in Java 8 but nothing happens. Anyone has an idea on this issue? Can anyone help? Thanks!

来源：https://stackoverflow.com/questions/47862637/ioexception-message-not-printed-correctly-when-using-java-9-on-windows-10-set-to