Jan Luehe wrote:
> Hi Gigi,
>
> Gigi Lee wrote On 03/28/07 03:31 PM,:
>
>> Hi,
>>
>> I'd like to update the jaxb classes used in glassfish. I found that
>> the classes were packaged in javaee.jar in installdir/lib, which I
>> presume is part of the system library.
>>
>> From the documentation of classpath, it is unclear whether I can use
>> classpath-prefix to overwrite jars in system lib. I tried put my
>> jaxb jars in classpath-prefix in domain.xml, but I do not see any
>> effect. I guess classpath-prefix only applies to non system libraries.
>>
>> Any suggestion?
>>
>
> I assume you're running on JDK 1.6?
>
> Notice that starting with JDK 1.6, the jaxb classes have been added to the
> default bootstrap classpath ("rt.jar").
>
> The only way to override any classes in "rt.jar" is by using the
> "-Xbootclasspath/p:path" option, which is documented as follows:
The documented portable way to override Java SE classes is to use the
Endorsed Standards Override Mechanism found here...
http://java.sun.com/javase/6/docs/technotes/guides/standards/index.html
>
> Specify a colon-separated path of directires, JAR archives, and ZIP
> archives to prepend in front of the default bootstrap
> class path. Note: Applications that use this option for the purpose
> of overriding a class in rt.jar should not be deployed as
> doing so would contravene the Java 2 Runtime Environment binary
> code license.
>
> See
>
> http://java.sun.com/j2se/1.5.0/docs/tooldocs/solaris/java.html
>
> for more details.
>
>
>
> Jan
>
>
>> Thanks,
>>
>> Gigi
>>
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