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6646946: Kernel installation failed on Japanese and Chinese XP SP2 (VM part)

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Convert strings from Download Manager into native encoding in the VM

Reviewed-by: sbohne, never, phh, kamg, xlu
This commit is contained in:
Coleen Phillimore 2008-01-17 13:38:17 -08:00
parent 1bfa153ebe
commit 218615259d
3 changed files with 35 additions and 2 deletions
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32
hotspot/src/share/vm/classfile/javaClasses.cpp
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@ -143,13 +143,43 @@ Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRA
jstring js = NULL;
{ JavaThread* thread = (JavaThread*)THREAD;
assert(thread->is_Java_thread(), "must be java thread");
ThreadToNativeFromVM ttn(thread);
HandleMark hm(thread);
ThreadToNativeFromVM ttn(thread);
js = (_to_java_string_fn)(thread->jni_environment(), str);
}
return Handle(THREAD, JNIHandles::resolve(js));
}
// Converts a Java String to a native C string that can be used for
// native OS calls.
char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) {
typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*);
static to_platform_string_fn_t _to_platform_string_fn = NULL;
if (_to_platform_string_fn == NULL) {
void *lib_handle = os::native_java_library();
_to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, hpi::dll_lookup(lib_handle, "GetStringPlatformChars"));
if (_to_platform_string_fn == NULL) {
fatal("GetStringPlatformChars missing");
}
}
char *native_platform_string;
{ JavaThread* thread = (JavaThread*)THREAD;
assert(thread->is_Java_thread(), "must be java thread");
JNIEnv *env = thread->jni_environment();
jstring js = (jstring) JNIHandles::make_local(env, java_string());
bool is_copy;
HandleMark hm(thread);
ThreadToNativeFromVM ttn(thread);
native_platform_string = (_to_platform_string_fn)(env, js, &is_copy);
assert(is_copy == JNI_TRUE, "is_copy value changed");
JNIHandles::destroy_local(js);
}
return native_platform_string;
}
Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) {
oop obj = java_string();
// Typical usage is to convert all '/' to '.' in string.

1
hotspot/src/share/vm/classfile/javaClasses.hpp
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@ -96,6 +96,7 @@ class java_lang_String : AllStatic {
// String converters
static char* as_utf8_string(oop java_string);
static char* as_utf8_string(oop java_string, int start, int len);
static char* as_platform_dependent_str(Handle java_string, TRAPS);
static jchar* as_unicode_string(oop java_string, int& length);
static bool equals(oop java_string, jchar* chars, int len);

4
hotspot/src/share/vm/classfile/systemDictionary.cpp
View File

@ -1242,7 +1242,9 @@ static instanceKlassHandle download_and_retry_class_load(
oop obj = (oop) result.get_jobject();
if (obj == NULL) { return nk; }
char* new_class_name = java_lang_String::as_utf8_string(obj);
Handle h_obj(THREAD, obj);
char* new_class_name = java_lang_String::as_platform_dependent_str(h_obj,
CHECK_(nk));
// lock the loader
// we use this lock because JVMTI does.