What does a setter for values from <SELECT/> look like?

I am using ThrowawayBean2 as the base class of my controllers, with the "model
as controller" style. When there are HTML form parameters in the request, these
get automatically transferred to fields in my controller/model objects,
providing that I write an appropriate setter method.

This has worked fine for text controls, checkboxes, radio buttons etc., but I
can't work out how to do <SELECT>. If my setter accepts a String or a String[]
array, it does not get called. If my setter accepts some type of Collection,
Maverick throws an IllegalArgumentException in the Apache BeanUtils. Some of the
stack trace is given below:

14:21:34.144 WARN!! Exception for /alarmlog.m
java.lang.IllegalArgumentException: argument type mismatch
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

     at java.lang.reflect.Method.invoke(Method.java:324)
     at
org.apache.commons.beanutils.PropertyUtils.setSimpleProperty(PropertyUtils.java:1386)

     at
org.apache.commons.beanutils.PropertyUtils.setNestedProperty(PropertyUtils.java:1298)

     at
org.apache.commons.beanutils.PropertyUtils.setProperty(PropertyUtils.java:1327)
     at org.apache.commons.beanutils.BeanUtils.populate(BeanUtils.java:562)
     at org.infohazard.maverick.ctl.ThrowawayBean2.go(ThrowawayBean2.java:39)
     at org.infohazard.maverick.ctl.Throwaway2.go(Throwaway2.java:48)

The above problem seems to be equally true whether or not the <SELECT> has
MULTIPLE set.

I presume that I am doing something wrong, but if so, what?

Where would I find documentation of what signature should be used for the setter
for data from each possible type of HTML control?

#:^P




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