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8238358: Implementation of JEP 371: Hidden Classes

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Co-authored-by: Lois Foltan <lois.foltan@oracle.com>
Co-authored-by: David Holmes <david.holmes@oracle.com>
Co-authored-by: Harold Seigel <harold.seigel@oracle.com>
Co-authored-by: Serguei Spitsyn <serguei.spitsyn@oracle.com>
Co-authored-by: Alex Buckley <alex.buckley@oracle.com>
Co-authored-by: Jamsheed Mohammed C M <jamsheed.c.m@oracle.com>
Co-authored-by: Jan Lahoda <jan.lahoda@oracle.com>
Co-authored-by: Amy Lu <amy.lu@oracle.com>
Reviewed-by: alanb, cjplummer, coleenp, dholmes, dlong, forax, jlahoda, psandoz, plevart, sspitsyn, vromero
This commit is contained in:
Mandy Chung 2020-04-21 06:55:38 -07:00
parent 642041adbc
commit 7cc1371059
198 changed files with 9526 additions and 1575 deletions
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21
src/hotspot/share/oops/instanceKlass.hpp
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@ -195,7 +195,10 @@ class InstanceKlass: public Klass {
// that is the nest-host of this class. This data has not been validated.
jushort _nest_host_index;
// Resolved nest-host klass: either true nest-host or self if we are not nested.
// Resolved nest-host klass: either true nest-host or self if we are not
// nested, or an error occurred resolving or validating the nominated
// nest-host. Can also be set directly by JDK API's that establish nest
// relationships.
// By always being set it makes nest-member access checks simpler.
InstanceKlass* _nest_host;
@ -469,6 +472,8 @@ class InstanceKlass: public Klass {
// nest-host index
jushort nest_host_index() const { return _nest_host_index; }
void set_nest_host_index(u2 i) { _nest_host_index = i; }
// dynamic nest member support
void set_nest_host(InstanceKlass* host, TRAPS);
// record components
Array<RecordComponent*>* record_components() const { return _record_components; }
@ -482,9 +487,13 @@ private:
bool has_nest_member(InstanceKlass* k, TRAPS) const;
public:
// Returns nest-host class, resolving and validating it if needed
// Returns NULL if an exception occurs during loading, or validation fails
InstanceKlass* nest_host(Symbol* validationException, TRAPS);
// Used to construct informative IllegalAccessError messages at a higher level,
// if there was an issue resolving or validating the nest host.
// Returns NULL if there was no error.
const char* nest_host_error(TRAPS);
// Returns nest-host class, resolving and validating it if needed.
// Returns NULL if resolution is not possible from the calling context.
InstanceKlass* nest_host(TRAPS);
// Check if this klass is a nestmate of k - resolves this nest-host and k's
bool has_nestmate_access_to(InstanceKlass* k, TRAPS);
@ -819,8 +828,8 @@ public:
}
bool supers_have_passed_fingerprint_checks();
static bool should_store_fingerprint(bool is_unsafe_anonymous);
bool should_store_fingerprint() const { return should_store_fingerprint(is_unsafe_anonymous()); }
static bool should_store_fingerprint(bool is_hidden_or_anonymous);
bool should_store_fingerprint() const { return should_store_fingerprint(is_hidden() || is_unsafe_anonymous()); }
bool has_stored_fingerprint() const;
uint64_t get_stored_fingerprint() const;
void store_fingerprint(uint64_t fingerprint);