java/6754: Casting to gnu.gcj.RawData causes SEGV

Mon May 20 19:27:00 GMT 2002

Adam Megacz wrote:
>Here's the test case; it's logged in the PR as well:
>> - a
>>>>import java.io.*;
>import gnu.gcj.RawData;
>>public class test {
>> public static native RawData foo();
>> public static RawData bar(Object o) {
> return (RawData)o;
> }
>> public static void main(String[] s) throws Exception {
> bar(foo());
> }
>>
This isn't a bug. It isn't really safe to do anything with non-Java 
objects in Java code, you certainly can't cast one.
RawData is just a hack to let you store non-Java data, which you don't 
want scanned by the GC, in a Java object. You probibly shouldn't 
actually use "RawData" in Java source for anything other than field 
declarations.
regards
Bryce.