When running the SPEC v15 harness with a debug malloc library, every button
press causes an illagal call to free() from the awt_g library.

To reproduce:

- get the SPEC v15 harness (resident expert: Nik Shaylor)
- start it, click OK button
- select one of the benchmarks from list (e.g., _213_javac)
- click start button

The MSVC debug library then reports
"Invalid Address specified to RtlFreeHeap(7b0000, 7abf8a8)