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*/
// ResolutionError objects are used to record errors encountered during // constant pool resolution (JVMS 5.4.3).
class ResolutionErrorTable : AllStatic {
public: staticvoid add_entry(const constantPoolHandle& pool, int which, Symbol* error, Symbol* message,
Symbol* cause, Symbol* cause_msg);
staticvoid add_entry(const constantPoolHandle& pool, int which, constchar* message);
// find error given the constant pool and constant pool index static ResolutionErrorEntry* find_entry(const constantPoolHandle& pool, int cp_index);
// purges unloaded entries from the table staticvoid purge_resolution_errors();
// RedefineClasses support - remove obsolete constant pool entry staticvoid delete_entry(ConstantPool* c);
// This value is added to the cpCache index of an invokedynamic instruction when // storing the resolution error resulting from that invokedynamic instruction. // This prevents issues where the cpCache index is the same as the constant pool // index of another entry in the table. staticconstint CPCACHE_INDEX_MANGLE_VALUE = 1000000;
// This function is used to encode an index to differentiate it from a // constant pool index. It assumes it is being called with a cpCache index // (that is less than 0). staticint encode_cpcache_index(int index) {
assert(index < 0, "Unexpected non-negative cpCache index"); return index + CPCACHE_INDEX_MANGLE_VALUE;
}
};
class ResolutionErrorEntry : public CHeapObj<mtClass> { private:
Symbol* _error;
Symbol* _message;
Symbol* _cause;
Symbol* _cause_msg; constchar* _nest_host_error;
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