The newline (line feed code) behavior of ServletPrintWriter has been changed since JBoss EAP 7.3.5

Issue

• The newline (line feed code) behavior of ServletPrintWriter has been changed since JBoss EAP 7.3.5. It was LF (\n) before JBoss EAP 7.3.4, but it's CRLF (\r\n) since EAP 7.3.5+.
• ServletPrintWriter's line feed code is different between JBoss EAP 6 and JBoss EAP 7.
  • In JBoss EAP 6.x, it's CRLF (\r\n)
  • In JBoss EAP 7.x (before 7.3.5), it's LF (\n)