Re: [kaffe] Bug Report: accessing array doesn't throw NullPointerException under MIPS

[Matthew Tippett]

Okay,

'make check' comes up with the following for each test.

        FAIL: ReflectInterfaces.java
        error compiling:
        Internal error: caught an unexpected exception.
        Please check your CLASSPATH and your installation.
        java/lang/NullPointerException
        Aborted
Is it work trying again with with intrp or jit?

Regards,

Matthew

Kevin D. Kissell wrote:
By a coincidence, I've re-opened Kaffe after working on other
stuff for the last several months, with the intention of trying to
get to the bottom of the remaining JIT problems.  So maybe,
*maybe*, I can investigate this problem further, but please
note that I'm much more a machine-code-and-OS kind of
guy than a JVM guru, so I'm certainly not the best person
to determine why a Java exception handler isn't being bound
correctly.
Matthew, you *did* explicitly configure your MIPS kaffe
to run interpreted, I hope?  The patched 1.0.7 will build
with jit3 by default, and it *mostly* works, but does fail
some half-dozen or so regression tests.  Interestingly,
neither the intrp nor the jit3 versions fail the NullPointer
regression test, which covers more-or-less the case
being described here.  So, Matthew, can you confirm
that you can run the regressions ("make check") and
that they all pass, particularly the NullPointer test?
If you modify your test program to look more like
the NullPointer.java regression test, does it still fail?
            Regards,

            Kevin K.

----- Original Message ----- 
From: "Dalibor Topic" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>; "Matthew Tippett"
<[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Thursday, March 06, 2003 11:53 AM
Subject: Re: [kaffe] Bug Report: accessing array doesn't throw
NullPointerException under MIPS



Hi Kevin,

could you take a look at it? 

cheers,
dalibor topic
--- Matthew Tippett <[EMAIL PROTECTED]>
wrote:
The quote code below has differing behaviour under a
MIPS (Little 
Endian) and an intel box, both running debian.

Both are against 1.0.7, but the MIPS platform has
had the following 
patch applied (which allowed it to work).


ftp://ftp.paralogos.com/pub/kaffe/mips/kaffe-1.0.7.patch_kevink_021001

public class Hello {
   public static void main(String arv[]) {
      int[][] test    = new int[1][];
      try {
         System.out.println("Getting test[0][0]");
         System.out.println("Got "+test[0][0]);
      } catch (NullPointerException e) {
         System.out.println("Caught Null POinter
Exception!");
      }
   }
}
The intel box does as expected ...

Getting test[0][0]
Caught Null POinter Exception!
But the MIPS box does

Getting test[0][0]
Internal error: caught an unexpected exception.
Please check your CLASSPATH and your installation.
java/lang/NullPointerException
Aborted
The java code we can work around (the code is
questionable but in the 
Xerces java library.

Looking forward to working through this problem.

Regards,

Matthew
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