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From "Alexei Zakharov" <alexei.zakha...@gmail.com>
Subject Re: [general][M3] Classlibrary test suite crashes (Was: Re: [general] M3 - code frozen)
Date Thu, 27 Sep 2007 13:18:00 GMT
Stepan, Tim,

I'm currently working on
crash on Linux. During last few hours I've successfully removed all
security stuff from it and created simpler reproducer:

import java.io.*;

public class Test113 {

    static class A implements Serializable {
        private final byte[] encoding = null;

        protected A() {}

        protected Object writeReplace() {
            return new String(encoding.clone());

    public static void main(String argv[]) throws Exception {
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        ObjectOutputStream oos = new ObjectOutputStream(out);
	A a = new A();

        for (int i = 0; i < 2; i++) {
           try {
	       System.out.println("ITERATION " + i);
	   } catch (NullPointerException e) {
	       System.out.println("NPE catched");

It passes on J9 and RI but leads to segmentation fault on DRLVM at my
Debian stable Linux IA32 machine. Tomorrow I'm going to unwrap it
further till I see obvious bug in DRLVM or probably in LUNI natives.
However, if someone else like to join - I open to any kind of help.

I can't reproduce
org.apache.harmony.security.tests.asn1.der.DerUTCTimeEDTest failure on

Besides crash of CertificateTest I also see
tests.api.java.net.MulticastSocketTest failure on Linux. It can be a
bogus test indeed. I haven't looked at it yet.

With Best Regards,

2007/9/27, Tim Ellison <t.p.ellison@gmail.com>:
> Stepan Mishura wrote:
> > On 9/25/07, Alexei Zakharov <alexei.zakharov@gmail.com> wrote:
> >>> As I remember Sean took pack200 tests. And Alexei Zakharov took
> >>> security test crash.
> >> I've just said I'm able to reproduce failures :) However, I'll take a
> >> look. May be it can be fixed easily.
> >
> > Alexei, any progress in resolving classlib test crashes? Do we have
> > serious issue here?
> There are no serious issues with the pack200 tests which are now passing
> since the code was cleaned and rebuilt.
> There is a reported VM crash running the classlib tests on r579330, but
> no details available so maybe they timed out.
> Windows:
> org.apache.harmony.security.tests.asn1.der.DerUTCTimeEDTest
> Linux:
> org.apache.harmony.security.tests.java.security.cert.serialization.CertificateTest
> The other failure on Linux java.net code looks to me like a potentially
> bogus test?
> Regards,
> Tim

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