The official Eclipse site seems to indicate this is not possible:

https://bugs.eclipse.org/bugs/show_bug.cgi?id=216051

which says:

Apple is not supporting the 64-bit carbon API.  SWT is written using carbon so
it must be 32-bit.  Apple won't support 32-bit JDK 1.6.  Therefore SWT won't
run on JDK 1.6 (along with any other Java program that had natives that made
carbon calls).

Nothing we can do here other than port to cocoa (which has been started but is
still in the early stages).

Is this still true? (This bug report comment is from over a year ago.) Is there no way to write an SWT app that I can distribute and will run on any Mac unless the user installs an old/Sun VM?