Reviewed-by: valeriep

Reviewed-by: coffeys

Reviewed-by: valeriep

8049418: [macosx] PopupMenuListener.popupMenuWillBecomeVisible is not called for empty combobox on MacOS/aqua look and feel
Reviewed-by: anthony, pchelko

Reviewed-by: alanb

8048265: AWT crashes inside CCombinedSegTable::In called from Java_sun_awt_windows_WDefaultFontCharset_canConvert
Reviewed-by: anthony, pchelko, azvegint

Reviewed-by: pchelko, alexsch

Reviewed-by: psandoz

Summary: Uses common testlibrary to find executable. Removed NullPointerExceptions. Log more.
Reviewed-by: sla
Contributed-by: mattias.tobiasson@oracle.com

Reviewed-by: valeriep

Reviewed-by: naoto, yhuang

Reviewed-by: okutsu