Thanks a lot, Krystal! It's very helpful. Du
On Mon, Feb 29, 2016 at 6:25 PM, Krystal Mok <rednaxel...@gmail.com> wrote: > Hi Du, > > 1. Yes, in various places. e.g. the ClassLoaderData object itself, the > Dependencies arrays, and the Klasses. > > 2. Please refer to [1]: > > // ClassLoaderData are stored in the runtime representation of classes and > the > // system dictionary, are roots of garbage collection, and provides > iterators > // for root tracing and other GC operations. > > You might want to read the source code around from process_roots() -> > ClassLoaderDataGraph::roots_cld_do() and then down to > ClassLoaderData::oops_do()/classes_do(). > > [1]: > http://hg.openjdk.java.net/jdk9/jdk9/hotspot/file/0e6f2f47479c/src/share/vm/classfile/classLoaderData.hpp#l48 > > - Kris > > On Mon, Feb 29, 2016 at 4:32 PM, Du Li <dawn2...@gmail.com> wrote: > >> Hi guys, >> >> I have a few questions regarding metaspace in hotspot. >> >> 1. Can an object in metaspace reference to an object in java heap? >> 2. If 1. is yes, how does GC handle such references when deciding the >> liveness of an object in java heap? >> >> Thanks. >> >> Du >> >> _______________________________________________ >> hotspot-gc-use mailing list >> hotspot-gc-use@openjdk.java.net >> http://mail.openjdk.java.net/mailman/listinfo/hotspot-gc-use >> >> >
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