[Bug libgcj/35253] New: reflection on annotation objects throws IllegalAccessException

[Bug libgcj/35253] New: reflection on annotation objects throws IllegalAccessException

[marcus at better dot se]

The following test program throws an IllegalAccessException with gij,
but works with Sun Java.

~$ gij InvokeAnnotationMethod
Exception in thread "main" java.lang.IllegalAccessException
   at java.lang.reflect.Method.invoke(libgcj.so.90)
   at test.Helper.invoke(Helper.java:11)
   at InvokeAnnotationMethod.main(InvokeAnnotationMethod.java:11)

~$ java InvokeAnnotationMethod
~$ java -version
java version "1.6.0"
Java(TM) SE Runtime Environment (build 1.6.0-b105)
Java HotSpot(TM) 64-Bit Server VM (build 1.6.0-b105, mixed mode)

The odd thing is that if the test.Helper class below is moved up to
the default package, the program works. So there seems to be some
reflection bug.

Report forwarded from Debian:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=466538

------------------------- file InvokeAnnotationMethod.java ----------------
import java.lang.annotation.*;

import test.Helper;

public class InvokeAnnotationMethod
{
    public static void main(String[] args)
        throws Exception
    {
        Annotation ann = Inner.class.getAnnotation(Ann.class);
        new Helper().invoke(ann);
    }

    @Retention(RetentionPolicy.RUNTIME)
    public @interface Ann {
        public int param() default 0;
    }

    @Ann
    public class Inner
    {
    }
}
-------------------------------------------------------

------------------------- file test/Helper.java ----------------
package test;

import java.lang.reflect.Method;

public class Helper
{
    public void invoke(Object a)
        throws Exception
    {
        Method m = a.getClass().getMethod("param", new Class[0]);
        m.invoke(a, new Object[0]);
    }
}


-- 
           Summary: reflection on annotation objects throws
                    IllegalAccessException
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libgcj
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: marcus at better dot se
 GCC build triplet: x86_64-linux-gnu
  GCC host triplet: x86_64-linux-gnu
GCC target triplet: x86_64-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35253

[Bug libgcj/35253] reflection on annotation objects throws IllegalAccessException

[marcus at better dot se]

------- Comment #1 from marcus at better dot se  2008-02-19 14:41 -------
$ gij -version
java version "1.5.0"
gij (GNU libgcj) version 4.3.0 20080202 (experimental) [trunk revision 132072]


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35253

[Bug libgcj/35253] reflection on annotation objects throws IllegalAccessException

[marcus at better dot se]

------- Comment #2 from marcus at better dot se  2008-03-09 14:46 -------
BTW this bug makes TestNG fail horribly with gcj, it relies heavily on
reflection with annotations of this kind.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35253