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All,
On 10/14/2010 3:24 PM, Christopher Schultz wrote:
> Pid,
>
> On 10/14/2010 3:21 PM, Pid wrote:
>> On 14/10/2010 20:03, Oliver Siegmar wrote:
>>> Hi Pid,
>>>
>>> Am Thursday 14 October 2010 schrieb Pid:
>>>> Which JSTL implementation are you using and which Java version was it
>>>> compiled for/on?
>>>
>>> http://repo2.maven.org/maven2/javax/servlet/jstl/1.2/jstl-1.2.jar
>>>
>>> Using Sun/Oracle Java 6u21
>
>> OK.
>
>> The related sources jar was built in 2006, and the pom for that
>> indicates that it's dependent on JSP 2.0, rather than 2.1.
>
>> At a guess, JSTL doesn't know what an enum is, so it's just doing what
>> it would do for any other unknown Object subclass, and is calling the
>> .toString() method.
>
> Something I didn't bother asking: what does the default Enum.toString
> return?
Answer to my own question:
public class EnumTest
{
public enum Weekday {
SUNDAY, MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY
}
public static void main(String[] args)
{
System.out.println(Weekday.SUNDAY);
}
}
This produces "SUNDAY" as output.
The EnumTest.Weekday "class" doesn't override the toString method,
allowing java.lang.Enum (it's superclass) to handle that.
java.lang.Enum.toString is implemented like this:
public String toString()
{
return name;
}
... and "name" is a String which is initialized in the constructor (when
I decompile EnumTest.Weekday, I can see it uses the string "Sunday", as
one might expect).
So I'm surprised that Oliver is getting that weird output.
- -chris
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