R***Z
发帖数: 1167 | 1 In Java, suppose obj A has a reference to obj B, obj B has a reference to obj
C, and obj C has a reference to obj A. And no one else has any reference to
these 3 objs. So each of them has a reference count of 1. But they should
really be GCed because they are not reachable by any means. How does the
garbage collector know these 3 objs can be GCed? Thanks. | m******t
发帖数: 2416 | 2
obj
JVM does not use reference counting-based GC. These object would be GC'ed
without any problem.
【在 R***Z 的大作中提到】
: In Java, suppose obj A has a reference to obj B, obj B has a reference to obj
: C, and obj C has a reference to obj A. And no one else has any reference to
: these 3 objs. So each of them has a reference count of 1. But they should
: really be GCed because they are not reachable by any means. How does the
: garbage collector know these 3 objs can be GCed? Thanks.
| g*****g
发帖数: 34805 | 3 http://www.brpreiss.com/books/opus5/html/page424.html
Algorithm like mark and sweep, does the job.
Note Java standard didn't specify how JVM should implement
its recycle scheme.
【在 m******t 的大作中提到】
:
: obj
: JVM does not use reference counting-based GC. These object would be GC'ed
: without any problem.
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