Unable to reference sun.*

[Jonathan Gibbons]

Guys,

This list is for the discussion of issues relevant to the development  
of the
JDK compiler, javac. I let this thread go for a while because there  
was the
  of a bug being uncovered here, but now we're getting further afield.  
Can
you please take further discussion off this list.

-- Jon


On May 10, 2008, at 3:31 PM, Andrew John Hughes wrote:

> On 10/05/2008, Brendon McLean <java.net at twistedprotein.com> wrote:
>> Hi,
>>
>> I've been developing an application on the Mac, but the target  
>> audience will
>> be cross platform.  I've just discovered that the application doesn't
>> compile on either Windows or Linux on Java 6.  The compiler is  
>> complaining
>> that one of the sun.* package I'm importing doesn't exist.  I'm  
>> very well
>> aware that linking to these packages is strongly discouraged, but I  
>> was
>> wondering whether perhaps it is now enforced?  I have the following  
>> file:
>> import sun.reflect.misc.MethodUtil;
>>
>> public class Test {
>> public static void main(String[] args) throws NoSuchMethodException {
>> MethodUtil.getMethod(Test.class, "main", new Class[] 
>> {String[].class});
>> }
>> }
>> This file will:
>> * Compile on all platforms under Java 5
>> * Compile on all platforms when compiled in IntelliJ IDEA
>> * Compile on Java 6 using javac on the Mac.
>> * Fail to compile on Linux and Windows using Java 6 javac.
>>
>> The package is located in classes.jar on the Mac and in rt.jar on  
>> all other
>> platforms.  In other words, this class should compile without any  
>> classpath
>> argument.  Also of interest, is that referencing classes in the  
>> com.sun.*
>> packages will work but generate a warning.  I can only conclude  
>> that there
>> is something about the Java 6 compiler that is actively preventing  
>> me from
>> linking to sun.* packages.
>>
>> Is this true?  Or have I missed something so obvious I'm going to  
>> have to
>> give up programming and pursue farming?
>>
>> Brendon McLean.
>>
>>
>
> Not only is this non-portable and thus contrary to your goals, but the
> correct way is shorter:
>
> Test.class.getMethod("main", String[].class);
>
> so why do it at all???
> -- 
> Andrew :-)
>
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