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8141132: JEP 254: Compact Strings

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Adopt a more space-efficient internal representation for strings.

Co-authored-by: Brent Christian <brent.christian@oracle.com>
Co-authored-by: Vivek Deshpande <vivek.r.deshpande@intel.com>
Co-authored-by: Charlie Hunt <charlie.hunt@oracle.com>
Co-authored-by: Vladimir Kozlov <vladimir.kozlov@oracle.com>
Co-authored-by: Roger Riggs <roger.riggs@oracle.com>
Co-authored-by: Xueming Shen <xueming.shen@oracle.com>
Co-authored-by: Aleksey Shipilev <aleksey.shipilev@oracle.com>
Co-authored-by: Sandhya Viswanathan <sandhya.viswanathan@intel.com>
Reviewed-by: alanb, bdelsart, coleenp, iklam, jiangli, jrose, kevinw, naoto, pliden, roland, smarks, twisti
This commit is contained in:
Tobias Hartmann 2015-11-03 09:41:03 +01:00
parent 4e24e2cc6c
commit 7af927f9c1
74 changed files with 4838 additions and 1683 deletions
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4
hotspot/src/share/vm/oops/instanceKlass.cpp
View file

@ -2921,12 +2921,10 @@ void InstanceKlass::oop_print_on(oop obj, outputStream* st) {
if (this == SystemDictionary::String_klass()) {
typeArrayOop value = java_lang_String::value(obj);
juint offset = java_lang_String::offset(obj);
juint length = java_lang_String::length(obj);
if (value != NULL &&
value->is_typeArray() &&
offset <= (juint) value->length() &&
offset + length <= (juint) value->length()) {
length <= (juint) value->length()) {
st->print(BULLET"string: ");
java_lang_String::print(obj, st);
st->cr();