src/share/vm/prims/jvmtiEnv.cpp
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*** old/src/share/vm/prims/jvmtiEnv.cpp Thu Aug 4 08:30:59 2016
--- new/src/share/vm/prims/jvmtiEnv.cpp Thu Aug 4 08:30:57 2016
*** 3558,3589 ****
--- 3558,3595 ----
// property_ptr - pre-checked for NULL
jvmtiError
JvmtiEnv::GetSystemProperties(jint* count_ptr, char*** property_ptr) {
jvmtiError err = JVMTI_ERROR_NONE;
*count_ptr = Arguments::PropertyList_count(Arguments::system_properties());
+ // Get the number of readable properties.
+ *count_ptr = Arguments::PropertyList_readable_count(Arguments::system_properties());
+ // Allocate memory to hold the exact number of readable properties.
err = allocate(*count_ptr * sizeof(char *), (unsigned char **)property_ptr);
if (err != JVMTI_ERROR_NONE) {
return err;
}
! int i = 0 ;
for (SystemProperty* p = Arguments::system_properties(); p != NULL && i < *count_ptr; p = p->next(), i++) {
! int readable_count = 0;
+ // Loop through the system properties until all the readable properties are found.
+ for (SystemProperty* p = Arguments::system_properties(); p != NULL && readable_count < *count_ptr; p = p->next()) {
+ if (p->is_readable()) {
const char *key = p->key();
! char **tmp_value = *property_ptr+i;
! char **tmp_value = *property_ptr+readable_count++;
err = allocate((strlen(key)+1) * sizeof(char), (unsigned char**)tmp_value);
if (err == JVMTI_ERROR_NONE) {
strcpy(*tmp_value, key);
} else {
// clean up previously allocated memory.
! for (int j=0; j<i; j++) {
! for (int j=0; j<readable_count; j++) {
Deallocate((unsigned char*)*property_ptr+j);
}
Deallocate((unsigned char*)property_ptr);
break;
}
}
+ }
+ assert(err != JVMTI_ERROR_NONE || readable_count == *count_ptr, "Bad readable property count");
return err;
} /* end GetSystemProperties */
// property - pre-checked for NULL
*** 3591,3604 ****
--- 3597,3608 ----
jvmtiError
JvmtiEnv::GetSystemProperty(const char* property, char** value_ptr) {
jvmtiError err = JVMTI_ERROR_NONE;
const char *value;
if (Arguments::is_internal_module_property(property)) {
! return JVMTI_ERROR_NOT_AVAILABLE;
}
value = Arguments::PropertyList_get_value(Arguments::system_properties(), property);
+ // Return JVMTI_ERROR_NOT_AVAILABLE if property is not readable or doesn't exist.
! value = Arguments::PropertyList_get_readable_value(Arguments::system_properties(), property);
if (value == NULL) {
err = JVMTI_ERROR_NOT_AVAILABLE;
} else {
err = allocate((strlen(value)+1) * sizeof(char), (unsigned char **)value_ptr);
if (err == JVMTI_ERROR_NONE) {
src/share/vm/prims/jvmtiEnv.cpp
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