JAWin install

I tried to test if JAWin is installed correctlly on my laptop.  And it
gave the errors listed below. Do I miss something for the setup?

Thanks in advance.

C:\JAWin>ant -Djunit.jar=c:\junit3.8.1\junit.jar
Buildfile: build.xml

init:
     [copy] Copying 1 file to C:\JAWin
     [copy] Replacing: @DATE@ -> May 24 2004
     [copy] Replacing: @TIME@ -> 1512
     [copy] Replacing: @ANTFILE@ -> C:\JAWin\build.xml
     [copy] Replacing: @USER@ -> JIN
     [copy] Replacing: @JAVAVM@ -> 9.0.3.744 cdov

genstubs:

compile:
    [javac] Compiling 271 source files to C:\JAWin\build\classes
    [javac] C:\JAWin\src\com\develop\code\Generator.java:78: cannot
resolve symb
ol
    [javac] symbol  : class Preferences
    [javac] location: package prefs
    [javac]        java.util.prefs.Preferences
prefs=java.util.prefs.Preferences
.userRoot();
    [javac]                       ^
    [javac] C:\JAWin\src\com\develop\code\Generator.java:78: cannot
resolve symb
ol
    [javac] symbol  : class Preferences
    [javac] location: package prefs
    [javac]        java.util.prefs.Preferences
prefs=java.util.prefs.Preferences
.userRoot();
    [javac]                                                         ^
    [javac] C:\JAWin\src\com\develop\code\Generator.java:129: cannot
resolve sym
bol
    [javac] symbol  : method setMaximizedBounds  (java.awt.Rectangle)
    [javac] location: class com.develop.code.Generator
    [javac]         setMaximizedBounds(new java.awt.Rectangle(0, 0, 600,
600));
    [javac]         ^
    [javac] C:\JAWin\src\com\develop\code\Generator.java:389: cannot
resolve sym
bol
    [javac] symbol  : class Preferences
    [javac] location: package prefs
    [javac]         java.util.prefs.Preferences
preferences=java.util.prefs.Pref
erences.userRoot();
    [javac]                        ^
    [javac] C:\JAWin\src\com\develop\code\Generator.java:389: cannot
resolve sym
bol
    [javac] symbol  : class Preferences
    [javac] location: package prefs
    [javac]         java.util.prefs.Preferences
preferences=java.util.prefs.Pref
erences.userRoot();
    [javac]
^
    [javac] C:\JAWin\src\com\develop\code\Generator.java:501: cannot
resolve sym
bol
    [javac] symbol  : class Preferences
    [javac] location: package prefs
    [javac]                 java.util.prefs.Preferences
preferences=java.util.pr
efs.Preferences.userRoot();
    [javac]                                ^
    [javac] C:\JAWin\src\com\develop\code\Generator.java:501: cannot
resolve sym
bol
    [javac] symbol  : class Preferences
    [javac] location: package prefs
    [javac]                 java.util.prefs.Preferences
preferences=java.util.pr
efs.Preferences.userRoot();
    [javac]
   ^
    [javac] C:\JAWin\src\com\develop\code\Generator.java:519: cannot
resolve sym
bol
    [javac] symbol  : class Preferences
    [javac] location: package prefs
    [javac]                 java.util.prefs.Preferences
preferences=java.util.pr
efs.Preferences.userRoot();
    [javac]                                ^
    [javac] C:\JAWin\src\com\develop\code\Generator.java:519: cannot
resolve sym
bol
    [javac] symbol  : class Preferences
    [javac] location: package prefs
    [javac]                 java.util.prefs.Preferences
preferences=java.util.pr
efs.Preferences.userRoot();
    [javac]
   ^
    [javac] C:\JAWin\src\org\jawin\code\Generator.java:77: cannot resolve
symbol

    [javac] symbol  : class Preferences
    [javac] location: package prefs
    [javac]        java.util.prefs.Preferences
prefs=java.util.prefs.Preferences
.userRoot();
    [javac]                       ^
    [javac] C:\JAWin\src\org\jawin\code\Generator.java:77: cannot resolve
symbol

    [javac] symbol  : class Preferences
    [javac] location: package prefs
    [javac]        java.util.prefs.Preferences
prefs=java.util.prefs.Preferences
.userRoot();
    [javac]                                                         ^
    [javac] C:\JAWin\src\org\jawin\code\Generator.java:128: cannot resolve
symbo
l
    [javac] symbol  : method setMaximizedBounds  (java.awt.Rectangle)
    [javac] location: class org.jawin.code.Generator
    [javac]         setMaximizedBounds(new java.awt.Rectangle(0, 0, 600,
600));
    [javac]         ^
    [javac] C:\JAWin\src\org\jawin\code\Generator.java:388: cannot resolve
symbo
l
    [javac] symbol  : class Preferences
    [javac] location: package prefs
    [javac]         java.util.prefs.Preferences
preferences=java.util.prefs.Pref
erences.userRoot();
    [javac]                        ^
    [javac] C:\JAWin\src\org\jawin\code\Generator.java:388: cannot resolve
symbo
l
    [javac] symbol  : class Preferences
    [javac] location: package prefs
    [javac]         java.util.prefs.Preferences
preferences=java.util.prefs.Pref
erences.userRoot();
    [javac]
^
    [javac] C:\JAWin\src\org\jawin\code\Generator.java:500: cannot resolve
symbo
l
    [javac] symbol  : class Preferences
    [javac] location: package prefs
    [javac]                 java.util.prefs.Preferences
preferences=java.util.pr
efs.Preferences.userRoot();
    [javac]                                ^
    [javac] C:\JAWin\src\org\jawin\code\Generator.java:500: cannot resolve
symbo
l
    [javac] symbol  : class Preferences
    [javac] location: package prefs
    [javac]                 java.util.prefs.Preferences
preferences=java.util.pr
efs.Preferences.userRoot();
    [javac]
   ^
    [javac] C:\JAWin\src\org\jawin\code\Generator.java:518: cannot resolve
symbo
l
    [javac] symbol  : class Preferences
    [javac] location: package prefs
    [javac]                 java.util.prefs.Preferences
preferences=java.util.pr
efs.Preferences.userRoot();
    [javac]                                ^
    [javac] C:\JAWin\src\org\jawin\code\Generator.java:518: cannot resolve
symbo
l
    [javac] symbol  : class Preferences
    [javac] location: package prefs
    [javac]                 java.util.prefs.Preferences
preferences=java.util.pr
efs.Preferences.userRoot();
    [javac]
   ^
    [javac] 18 errors

BUILD FAILED
C:\JAWin\build.xml:270: Compile failed; see the compiler error output for
detail
s.