I have a very simple project . It jush have one controller, use org.springframework.web.client.RestTemplate.postForObject to get info. But heap is bigger and bigger, old gen is bigger and bigger。 old gen max 1G, if full gc , old gen 100m . It can be full gc, but can't be young gc。 I dump heap. char[] have 444k+ . one kind of char[] has 100k-200k it is be reference by java.net.URL. watch 'jmap -histo 20213 |grep java.net.URL' and gc info young gc can destroy part java.net.URL，but it is bigger and bigger.
Comment From: wilkinsona
@shihu19860215 Please do not open duplicate issues. This is a repeat of #19664.