In \src\win32\native\sun\windows\awt_TextComponent.cpp,
the AddCR function deletes the buffer passed into it by
the client if it needs to allocate more memory. This
function really ought to be changed to allow the client
to do its own memory management. There ought to be a
new function that returns the amount of memory needed
for the new buffer, and the client code can allocate
memory as necessary.

One benefit of this would be to enable use of alloca
instead of malloc in places where it is not possible
now (e.g. using the TO_WSTRING macro in Unicode.h in
awt_TextArea.cpp - see bugid 4141477).