reflection problem

hi all, i got a problem with this bunch of code:

[CODE]

Manager boss = new Manager("Paul Brown", 1000, 500);

Class c = boss.getClass();

try

{

Field field = c.getField("bonus");

Integer newBonus = field.getInt(boss);

newBonus = newBonus + 200;

field.setInt(boss, newBonus);

}

catch(NoSuchFieldException nsfe)

{

System.out.println(nsfe.getMessage());

nsfe.printStackTrace();

}

catch(IllegalAccessException iae)

{

System.out.println(iae.getMessage());

iae.printStackTrace();

}

[/CODE]

i got a class Manager with a public (otherwise i'd get a NoSuchFieldException) Integer bonus field. i'd like to modify it via reflection, but i get an error at this point:

Integer newBonus = field.getInt(boss);

[CODE]Exception in thread "main" java.lang.IllegalArgumentException: Attempt to get java.lang.Integer field "dynamicbinding.Manager.bonus" with illegal data type conversion to int

at sun.reflect.UnsafeFieldAccessorImpl.newGetIllegalArgumentException(Unknown Source)

at sun.reflect.UnsafeFieldAccessorImpl.newGetIntIllegalArgumentException(Unknown Source)

at sun.reflect.UnsafeObjectFieldAccessorImpl.getInt(Unknown Source)

at java.lang.reflect.Field.getInt(Unknown Source)

at reflection.Main.main(Main.java:30)[/CODE]

illegal data type conversion to int? what does it mean? how can i fix this? thank you all :)

[1492 byte] By [xplorer87a] at [2007-11-27 11:42:00]