import statements generated by dava make ambiguity of class ref.

[Haruyuki Kawabe <Haruyuki.Kawabe@unisys.co.jp>]

 Suppose there is package/class hierarchy:
pkg1.class1
pkg2.class1
pkg2.class2

and some class file refers to pkg1.class1 and pkg2.class2.

In this situation, I tried to decompile the class file using dava,
dava generates import statements as follows:
import pkg1.*;
import pkg2.*;
then the reference to class1 becomes ambiguous and
could not recompile the generated java file.

Haruyuki Kawabe