Make and javac compliler problem in bash

[Woody Jin]

<Problem 1>
I have a Makefile which compiles java program, if I type
make, after the screen shows the "javac xxxx.java", and then
hangs.  The Makefile doesn't need to
be complex. Any simple Makefile that compiles even HelloWorld.java
will make the bash console stuck.
<Problem 2>
It seems to me that javac in Windows will accept directories only in
MS-DOS way. For example, "javac -classpath /a/b/c" won't work.

I am running on Windows NT 4.0 with service pack 5.
My Cygwin version: I grabbed the most recent version of *.tar.gz files
of each component from ftp site and installed using the setup program.
I am not sure of the version of this. Maybe the most recent snapshot
of b20 ?
Anyway I am including the  result of  "cygcheck -s -v -r"

Thanks,