git: openjdk/jdk: 8255405: sun/net/ftp/imp/FtpClient uses SimpleDateFormat in not thread-safe manner

[Igor Ignatyev]

Changeset: 7e305ad1
Author:    Igor Ignatyev <iignatyev at openjdk.org>
Date:      2020-10-28 23:53:51 +0000
URL:       https://git.openjdk.java.net/jdk/commit/7e305ad1

8255405: sun/net/ftp/imp/FtpClient uses SimpleDateFormat in not thread-safe manner

Reviewed-by: chegar, ryadav, dfuchs

! src/java.base/share/classes/sun/net/ftp/impl/FtpClient.java
! test/jdk/sun/net/ftp/TestFtpTimeValue.java