gmane.comp.java.harmony.devel

[ANNOUNCE] Apache Harmony 5.0M8 available

Tim Ellison — 2008-11-20T21:28:28

The Apache Harmony team are pleased to announce the immediate availability of Apache Harmony 5.0M8. Apache Harmony is the Java platform project of the Apache Software Foundation. Apache Harmony 5.0M8 is the latest stable build containing numerous bug fixes, and enhancements to the policytool and pack200 support. Source code and binary builds are available from the project download site: http://harmony.apache.org/download.cgi Apache Harmony welcomes your help. For more information on how to report problems, successes, and to get involved in Apache Harmony visit the project website at http://harmony.apache.org The Apache Harmony Team

[classlib/tools] using nativebridge tool

Stanley Gambarin — 2008-11-20T07:45:59

Hello, there are references in the classlib code for nativebridge tool that was (originally) used to generate java stubs/proxy calls for AWT module from C header files (for X server). I am unable to find that tool anywhere in svn, so any help in locating this would be appreciated. I need to generate some java stubs/proxy based on different set of headers, and doing it manually does not appeal to me :) thanks,

[classlib][luni] Redundant and repeated external properties loading using ResourceBundle may degrade performance.

Kevin Zhou — 2008-11-20T02:08:14

Hi, I read some code in LUNI module of Harmony. (org.apache.harmony.luni.util.Msg/MsgHelp and java.util.ResourceBundle) I found that Harmony uses ResourceBundle to load messages from external properties file. e.g. Once it requires a message "K0046", it will always use ResourceBundle to go through the org.apache.harmony.luni.util.ExternalMessages.properties file to search it. I think such redundant and repeated I/O operations may degrade our performance. Why not use a hashtable to store all the external messages? It only requires several I/O operations initially!

About

Kevin Zhou — 2008-11-20T02:02:09

[classlib] Any reason not to commit HARMONY-5934 - HARMONY-5938?

Sian January — 2008-11-17T11:45:44

Andrew Cornwall has contributed a set of patches that wrap calls to loadLibrary in an AccessController.doPrivileged(){} block. It seems fine to me, but the JIRAs have been around for a while so I was just wondering if there's any reason not to commit the patches that I'm missing? Thanks, Sian

Result for r713673 (Was: Re: [vote] Declare r713673 as M8)

Sian January — 2008-11-17T10:52:45

It has been just over 72 hours since we started voting for r713673 so the vote is now closed. The results are nine +1s from Aleksey Shiplev, Chunrong, Xiao-Feng, Sian, Alexey Petrenko, Alexei Fedetov, Tim, Sean and Mark and no other votes. At least 3 committers voted in favour, so according to Apache rules the vote passes. r713673 is declared as M8 and the codebase is re-opened for development. Thanks to everyone who voted. 2008/11/17 Sean Qiu gmail.com>:

[vote] Declare r713673 as M8

Sian January — 2008-11-14T10:15:40

This is our second formal vote for M8, the first one having been cancelled when a critical bug was found[1] r713673 consists of r711744, which we were previously voting on, plus a fix for HARMONY-6013, which was deemed critical. The snapshot builds [2] and integrity testing results [3] are available. So shall we declare r713673 as M8? This vote will be open for 3 days, or until all binding votes have been cast (if earlier). [1] http://harmony.markmail.org/message/x7ajrwkdhf36s7kt [2] http://people.apache.org/builds/harmony/snapshots/r713673/ [3] http://people.apache.org/~chunrong/harmony-integrity/

A few questions/help.

Diab Abuaiadh — 2008-11-13T10:08:47

Dear Sir/Madam, I have a few questions/help. Please let me introduce myself.My name is diab abuaiadh. I worked at ibm and invented the parallel compactionalgorithms implemented at ibm products (sov and j9). I left IBM at 2006.I have new algorithms for the garbage collection and I am very interested to implementthese algorithms. I have a few questions for you: did IBM gave j9 to the open source community?In other words, can I get the code for j9 and implement/test my new algorithms? I will be happy to share some of the ideas I have with the open source community. Thank you for your help,Diab. _________________________________________________________________ Invite your mail contacts to join your friends list with Windows Live Spaces. It's easy! http://spaces.live.com/spacesapi.aspx?wx_action=create&wx_url=/friends.aspx&mkt=en-us

Enable the MACRO _DEBUG_CHECK_NULL_

chunrong lai — 2008-11-12T09:08:19

hi, colleagues: I am asking for the support of other committers to enable the MACRO _DEBUG_CHECK_NULL_ (in include/jit_runtime_support.h), because of the rule of M8 code frozen period. I need the MACRO to enable the test case as in HARMONY-6013, which throws uncaught NullPointerException. The exception comes with the stub of vm_rt_monitor_enter. We had not met the reported exception because we originally have two null checkings with that. The first one is just before the stub. The second is inside the stub. Now we find that the first null checking before the stub will be removed after some aggressive optimizations. Also a commit r659128 moved the null checking (and exception throwing) codes inside the stub into the regions guarded by the disabled macro MACRO _DEBUG_CHECK_NULL_ . As the result drlvm just fails in running such test cases. Buqi is checking JIT codes to prepare another patch. But I am not sure if we should wait and include the patch in M8. Or we can just try that after code unfrozen.

Anyone plans to enable interpreter + jit in client mode?

Wenlong Li — 2008-11-12T03:52:40

Hello, all, Harmony now uses jet+jit in client mode, does anybody know why? Seems RI uses interpreter + jit or jit only to compile target program. Does anybody have done or plan to support the interpreter + jit in client mode? I am asking this question because RI has good startup performance, but Harmony has not good startup performance (one of the problems is compilation overhead). Thx, Wenlong

[vote] Declare r711744 as M8

Sian January — 2008-11-10T16:17:04

The testing cycle for r710036 [1] has been completed and the test results have been discussed [2]. Two bug fixes [3,4] have been committed since r710036 that we want to include in M8. r711744 has not been through the extended testing cycle, but has been through the standard integrity testing cycle with the same results as r710036.[5] As usual there are some long-standing issues and a few new ones, but nothing that has been considederd critical so far. Overall the pass rate is better than M7. If anyone thinks that a particular issue is a blocker for M8 please say so here. Otherwise, shall we declare r711744 as M8 and unfreeze the code base? [1] http://people.apache.org/~chunrong/snapshots/r710036/index.html [2] http://markmail.org/message/l72lba7xehacqyku [3] http://markmail.org/message/6fxgpa2azv27zsol [4] http://markmail.org/message/ljqwytbegtsfou2g [5] http://people.apache.org/~chunrong/harmony-integrity/

[general] M8 code freeze now in effect

Sian January — 2008-11-03T11:14:17

As agreed, we are now entering our code freeze for M8. No commits allowed except for critical bug fixes and they must be approved on the dev list by at least two committers. Let's use r710036 for our snapshot testing. Please could as many people as possible try to do some testing this week so that we can get M8 as stable as we can. Thanks, Sian

discussion for H5022

xiaoming gu — 2008-11-03T03:52:22

Hi, guys. I'm studying H5022 - incorrect codegeneration of compressed obj arithmetics[1]. In my understanding, the problem is that current JIT casts heap base address from 64-bit to 32-bit compulsorily in IA32 but that address must be in 64-bit even in a 32-bit platform. If I catch the point of this jira correctly, I'll try to delete the casts in Ia32InstCodeSelector.cpp recently. Any comment? Thanks. Xiaoming [1] - https://issues.apache.org/jira/browse/HARMONY-5022

[general] Harmony on PowerPC

Mark Gertsvolf — 2008-11-03T03:34:42

Hello, I am trying to run Java application on a PowerPC Linux distro, which is old - Kernel 2.4.22 and glibc 2.3.2. I could not use off-the-shelf binary distributions of JVM from Sun or IBM as I need to build the JVM from source using my toolchain. With help from this list (Thank you, Tim) I was able to successfully run my Java application with Harmony on CentOS 5, x86 as an initial proof of concept. I am now trying to build Harmony on PowerPC platform. I have built a few modules of classlib, but encountered a problem in threads portlib module, where a number of functions are implemented in assembly language and the ppc implementation is missing. Apart from portlib thread module there seem to exist only two more VM modules with assembly code and PPC specific implementation is missing. The "supported platforms" section on the project website indicates that the PPC port is in progress. What is the current status of PowerPC porting? Is anybody running Harmony on PowerPC? Thank you in advance, Mark.

[admin] Automated Monthly Reminder

2008-11-01T00:00:03

This is a monthly automated mailing to the Apache Harmony dev list. The Apache Harmony project welcomes the participation and input of anyone interested in open source Java SE, the goal of our project. For more information about the Apache Harmony project, please see the project website. http://harmony.apache.org/ The terms of use for the Harmony mail lists can be found here : http://harmony.apache.org/mailing.html and they are This forum has been created for public communication about projects of The Apache Software Foundation (the "Foundation"), a Delaware nonprofit corporation classified as a public charity under 501(c)(3). All communication intentionally submitted to the Foundation on this forum is considered a Contribution to the Foundation unless otherwise noted in the communication. The terms and conditions that apply to your Contributions are defined by either a contributor license agreement (CLA) signed by you and/or your employer or, if no such CLA is on file at the Foundation, by the terms and conditions of Contributions as defined by the Apache License, Version 2.0. Note : * If you do not wish your post to be a Contribution, we would prefer that you do not post it. However, in the event that you do, please mark as "NOT A CONTRIBUTION" at the top of the posting. * Do not post any code that is not your original work, or code that you do not have clear authorization to contribute. * Do not engage in detailed discussion of any implementation that you have been exposed to unless such implementation is available to everyone under an open source license or is your own implementation. * Under no circumstances will any committer accept code for inclusion in our SVN repository contributed on the mailing list unless it is from an Authorized Contributor, as defined here. If you have any questions, please do not hesitate to ask on either the dev list. If there are any questions that are of a private or sensitive nature, please send them to private< at >harmony.apache.org

[testing][concurrent] Should we exclude failing concurrent tests?

Sian January — 2008-10-31T15:43:47

IIRC the concurrent tests have only recently been included in the normal class library test suite, so the failures we are seeing are due to missing functionality rather than regressions. If that's right, should we exclude them in the short term and raise a JIRA to track the issue? According to the integrity testing page the classes with failures on Windows are: AbstractQueuedSynchronizerTest ThreadLocalTest ReentrantLockTest ExecutorsTest ScheduledExecutorTest and on Linux are: ExecutorsTest ThreadLocalTest

[general] Clean on test machines?

Sian January — 2008-10-31T13:37:30

Hello, Is it possible to do a clean on any classlib test machines? I think I have fixed the test failures: org.apache.harmony.archive.util.UtilTest.testToASCIIUpperCaseByte() and org.apache.harmony.archive.util.UtilTest.testToASCIIUpperCaseChar() at r709179, but I had to do a clean on my computer first, so I think the test machine(s) will need one too. Is it Chunrong who could do this? (http://people.apache.org/~chunrong/harmony-integrity/) Thanks, Sian

[Build]Problem on Mac OS

Tony Wu — 2008-10-31T07:27:08

Hi, all IIRC Harmony was compatible with mac. but I just came across a build problem on Mac when I try to build Harmony. It's a assemble problem which I'm not familiar with, do you know what happened there? -build-native-thread: [echo] Making "" in /Users/tonywu/trunk/modules/portlib/src/main/native/thread/unix [exec] as -o x86/thrhelp.o x86/thrhelp.s [exec] x86/thrhelp.s:37:Unknown pseudo-op: .type [exec] x86/thrhelp.s:37:Rest of line ignored. 1st junk character valued 104 (h). [exec] x86/thrhelp.s:39:Unknown pseudo-op: .type [exec] x86/thrhelp.s:39:Rest of line ignored. 1st junk character valued 99 (c). [exec] x86/thrhelp.s:41:Unknown pseudo-op: .type [exec] x86/thrhelp.s:41:Rest of line ignored. 1st junk character valued 104 (h). [exec] x86/thrhelp.s:70:Unknown pseudo-op: .size [exec] x86/thrhelp.s:70:Rest of line ignored. 1st junk character valued 99 (c). [exec] x86/thrhelp.s:95:Unknown pseudo-op: .size [exec] x86/thrhelp.s:95:Rest of line ignored. 1st junk character valued 104 (h). [exec] x86/thrhelp.s:120:Unknown pseudo-op: .size [exec] x86/thrhelp.s:120:Rest of line ignored. 1st junk character valued 104 (h). [exec] make: *** [x86/thrhelp.o] Error 1

[testing] Exception java.nio.channels.IllegalSelectorException thrown in dnsjava

Mark Gertsvolf — 2008-10-30T15:41:07

Hi, I am running Harmony JVM 5.0 on CentOS 5, x86 and I am using dnsjava library. The following simple A lookup works as expected with IBM JVM 5.0 and results in exception with Harmony. try { org.xbill.DNS.Record[] records = new org.xbill.DNS.Lookup("magma.ca").run(); } catch (Throwable ex) { ex.printStackTrace(); } Exception: java.nio.channels.IllegalSelectorException at java.nio.channels.spi.AbstractSelectableChannel.register(AbstractSelecta bleChannel.java:137) at java.nio.channels.SelectableChannel.register(SelectableChannel.java:115) at org.xbill.DNS.Client.(Client.java:22) at org.xbill.DNS.UDPClient.(UDPClient.java:14) at org.xbill.DNS.UDPClient.sendrecv(UDPClient.java:64) at org.xbill.DNS.SimpleResolver.send(SimpleResolver.java:256) at org.xbill.DNS.ResolveThread.run(ResolveThread.java:37) I studied dnsjava code and I do not see any reason for IllegalSelectorException to be thrown. http://dnsjava.cvs.sourceforge.net/viewvc/dnsjava/dnsjava/org/xbill/DNS/ Client.java?revision=1.5&view=markup http://dnsjava.cvs.sourceforge.net/viewvc/dnsjava/dnsjava/org/xbill/DNS/ UDPClient.java?revision=1.4&view=markup How does one troubleshoot this type of problem? Any help will be appreciated. Thanks, Mark.

[performance] Up to date numbers?

Tim Ellison — 2008-10-30T12:39:57

Do we have any up to date performance numbers published? There have been posts on this list about people running SPEC benchmarks, and recent work on the JIT. The website [1] shows some very old results. [1] http://harmony.apache.org/performance.html Regards, Tim

[general] M8 Feature Freeze

Sian January — 2008-10-27T15:16:09

Let's start our feature freeze today for M8. As previously agreed, new functionality, big changes and code redesign are forbidden; only bugs fixes and code tidy-up are allowed. I'm aware that there haven't been a huge number of responses either way on the other M8 thread so if anyone disagrees with the freeze for any reason please say so here, otherwise we'll assume that the code is frozen. Thanks, Sian