java-devel August 2005

java-devel@lists.fedoraproject.org

50 participants
57 discussions

Re: [jonas-team] Monolog on gcj
by Vadim Nasardinov 19 Aug '05

19 Aug '05

On Thursday 18 August 2005 18:07, Florent BENOIT wrote: > I applied the change (+ some doc) in the current CVS head of > Monolog. The patch is a tad suboptimal. http://cvs.forge.objectweb.org/cgi-bin/viewcvs.cgi/monolog/monolog/src/org/… The reason java.util.logging.LogManager only keeps weak references to the loggers it manages is in order to avoid a resource leak. If the application chooses not to retain a hard reference to a logger, then the LogManager should not prevent the unneeded logger from getting GC-ed. Makes sense. The exact same logic applies to Monolog's LoggerFactory. It should not keep hard references to loggers it creates. It is up to the calling application to retain a reference if the app wishes to avoid the cost of creating a new logger instance every time it needs one. Where does that leave us? Andrew ran into the above problem in an old version of Carol. Recent versions do not have this problem for the simple reason that Carol no longer uses Monolog. It's been Monolog-free since March 15 (good job, Florent!): http://www.objectweb.org/wws/arc/carol-commits/2005-03/msg00078.html However, if we want to patch Monolog for those remaining parts of Jonas that continue to depend on it, then someone should take a closer look at whether or not the following class should be responsible for retaining hard references to loggers it creates: org.objectweb.util.monolog.file.monolog.PropertiesConfAccess This responsibility should most certainly not be born by the LoggerFactory class. > Andrew Haley wrote: ... > > Logger getLogger(String name) > > > > but LogManagers only keep weak references to their logs. So, as > > soon as a log has been created you need to keep a hard reference > > to it. > > > > In Monolog there is > > org.objectweb.util.monolog.wrapper.javaLog.LoggerFactory, and that > > uses a LogManager to keep track of the instances of Logger it > > creates. ... > >--- src/org/objectweb/util/monolog/wrapper/javaLog/LoggerFactory.java~ > >+++ src/org/objectweb/util/monolog/wrapper/javaLog/LoggerFactory.java > >@@ -45,6 +45,8 @@ > > */ > > protected static Logger rootLogger = null; > > > >+ private ArrayList loggers = new ArrayList(); > >+ > > /** > > * This static code initialize the value of the variable defined into > > * BasicLevel. > >@@ -145,6 +147,7 @@ > > if (o == null) { > > // It doesn't exist => creates and adds it > > Logger result = new Logger(name, resName); > >+ loggers.add(result); > > Monolog.debug("Instanciate the logger " + name); > > manager.addLogger(result); > > return result;

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Fwd: [platform-releng-dev] stick to JDK 1.4 for now
by Ismael Juma 19 Aug '05

19 Aug '05

Hi, mjw asked me to forward this to the list. ----- Original Message ----- From: Jim des Rivieres <Jim_des_Rivieres(a)ca.ibm.com> To: platform-releng-dev(a)eclipse.org Sent: Fri Aug 19 15:19 Subject: Fwd: [platform-releng-dev] stick to JDK 1.4 for now The plan of record is that Eclipse Platform 3.2 will be based on JDK 1.5 (aka J2SE 5). However, all scheduled builds from the 3.2 stream (HEAD) will continue to be compiled against JDK 1.4 until some time in the fall. This is being done so that the JDT folks can shake out the last 1.5 bugs before unleashing the rest of us upon it. At some point (exact date TBD), we'll switch to creating our builds using the JDK 1.5 compiler and libraries. Only at this point will committers be able to get away with releasing code to the Eclipse code base that relies on JDK 1.5 language features or libraries. If you are already running Eclipse with JDK 1.5, you need to be careful to not inadventently break the build. The new language features (esp. generic types and enumerations) bring up a number of new issues re: binary compatibility. The guidelines for evolving Java-based APIs will be revised to cover the new cases. ---jim _______________________________________________ platform-releng-dev mailing list platform-releng-dev(a)eclipse.org https://dev.eclipse.org/mailman/listinfo/platform-releng-dev

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Monolog on gcj
by Andrew Haley 17 Aug '05

17 Aug '05

I've been having a really bizarre time figuring out why on gcj the trace.properties file of JOnAS doesn't have any effect. It seems to be due to weak references. Java has a class called java.util.logging.LogManager, and you can get a Logger by calling getLogger: Logger getLogger(String name) but LogManagers only keep weak references to their logs. So, as soon as a log has been created you need to keep a hard reference to it. In Monolog there is org.objectweb.util.monolog.wrapper.javaLog.LoggerFactory, and that uses a LogManager to keep track of the instances of Logger it creates. So, still no hard references there and it's up to the caller of LoggerFactory to keep hard references. JOnAS calls org.objectweb.util.monolog.file.monolog.PropertiesConfAccess.load(java.util.Properties, org.objectweb.util.monolog.api.LoggerFactory, org.objectweb.util.monolog.api.HandlerFactory, org.objectweb.util.monolog.api.LevelFactory) to read the properties file for JOnAS logging, and this routine as a side-effect creates loggers for all of JOnAS's subsystems. Later on, TraceCarol does this: public static void configure(LoggerFactory lf) { carolLogger = lf.getLogger(prefix); But of course, the LoggerFactory lf only has weak references to its loggers, so these loggers it created might have disappeared. This is why it doesn't matter how I edit the properties files, I get no output: by the time carol calls getLogger, the logger no longer exists. It seems to me that this is a failure of Monolog. The only way to fix it is to have Monolog's LoggerFactory keep hard references for its loggers. All I have to do to make Monolog work correctly with gcj is add the patch below. Andrew. --- src/org/objectweb/util/monolog/wrapper/javaLog/LoggerFactory.java~ 2004-08-17 10:18:08.000000000 +0100 +++ src/org/objectweb/util/monolog/wrapper/javaLog/LoggerFactory.java 2005-08-17 19:25:51.000000000 +0100 @@ -45,6 +45,8 @@ */ protected static Logger rootLogger = null; + private ArrayList loggers = new ArrayList(); + /** * This static code initialize the value of the variable defined into * BasicLevel. @@ -145,6 +147,7 @@ if (o == null) { // It doesn't exist => creates and adds it Logger result = new Logger(name, resName); + loggers.add(result); Monolog.debug("Instanciate the logger " + name); manager.addLogger(result); return result;

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引き続きよろしくお願いします。
by takayama＠venusnetwoerk.cx 16 Aug '05

16 Aug '05

『VenusNetwork』代表　富田ゆかりでございます。前回は手違いでメールが届いていないという方が多数いらっしゃったそうで誤解をしてしまった方も多かったと思われます。大変申し訳ございませんでした。当クラブ「VenusNetwork」は女性会員2万名に対し、男性会員様が不足しております。そこで再びこの「VenusNetwork」メール読者の皆様から男性会員を募集することになりました。それではお決まりの会員様のご意見コーナーからスタートしたいと思います。岐阜県にお住まいのあきおさん ------------------------------------------------------------------------------ 自分は昨年離婚してからというもの不幸の連続でした。多額のローン返済、慰謝料、ギャンブルで作った借金・・・。そんな途方に暮れているときに『VenusNetwork』さんからのメールが届いたのです。初めは信じられませんでしたがスタッフの方が親切にサポートしてくださるので騙されたと思いここは登録してみようと思い紹介を希望しました。そのおかげで今はサポートをしてくれる素敵な恋人も見つかり日々楽しく過ごしています。皆さん、女性の方と連絡を取るのに有料掲示板を利用することに抵抗を感じているのではないですか？正直な話、自分も『VenusNetwork』が有料なのかと最初勘違いしていました。掲示板はあくまで連絡用で『VenusNetwork』とは関係ないのだと言う事に気づくまで時間がかかってしまい『VenusNetwork』さんには大変ご迷惑をお掛け致しました。暴言を吐いたことも多々ありました。この場を借りてお詫び申し上げます。疑ってばかりでは何も始まりません。ここは第一歩を踏み出すのが大切です。胸を張って言えます。『VenusNetwork』絶対と。それでは失礼致します。 ------------------------------------------------------------------------------ 貴重なご意見ありがとうございます。ご意見の中にもありました通り、男性の皆様にはお住まいの地域と女性のタイプをこちらに送信して頂きます。より選りの女性をご紹介させて頂きます。 VenusNetworkでは、女性会員様のプライバシーを優先させて頂くために、ポイント制の無料ポイントも付いた有料掲示板を利用させて頂いております。無料掲示板だと、どなたでも利用できるため、荒らし、冷やかしなどが非常に多くなる危険性があります。女性会員様もこの掲示板の利用には賛成して頂いております。利用させて頂いている掲示板は、個人情報の流失など絶対にない安全なことを確認の上、選び抜いたものですので気持ちよく利用して頂くことができます。当クラブでは『身元の確かな出会いに縁のない女性会員様と、誠実で秘密厳守を守れる男性会員様』の出会いを第一に考えております。また「VenusNetwork」では女性会員様の会費で運営されております。お会いする場合にはくれぐれも失礼のないようお願い致します。日本全国に女性会員様が多数在籍しておりますので、まずは貴方様の地域に該当している女性会員様をご紹介させて頂きたいと思います。簡単なシートですので、まずはお気軽にお書き下さいませ。Ｑ：ＮＯ,１　　貴方様のお会いするにあたってのご希望の地域(都道府県等) Ｑ：ＮＯ,２　　当クラブをご利用するにあたってのご利用タイプ【タイプ1】真面目に一般女性とお付き合い　　（真面目な交際・結婚前提）【タイプ2】女性スポンサーとお付き合い　　　（事業資金などサポートして欲しい）【タイプ3】割り切った大人のお付き合い　　　（愛人・セフレ）【タイプ4】40歳以上同士の新しい交際　　　　（人妻・熟女）以上のご質問にお答え頂きご返信いただければ、当クラブの各地域担当女性から貴方様のご希望に沿った女性をご案内させて頂きます。『VenusNetwork』代表　富田ゆかり ------------------------------------------------------------------------------ ☆注意☆ ご紹介の際に携帯電話番号、携帯電話メールアドレスが必ず必要になります。また、女性会員様も携帯電話をお持ちの方が絶対条件と申しておりますので何卒ご了承下さい。よろしくお願い致します。

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by info＠torauma.com 16 Aug '05

16 Aug '05

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by info＠raja-lion.com 16 Aug '05

16 Aug '05

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16 Aug '05

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いかがお過ごしでしょうか。
by saeki＠venusnetwoerk.cx 15 Aug '05

15 Aug '05

女性紹介サークル『Venus Network』代表　富田ゆかりでございます。簡単に当サークルのご説明をさせて頂きますので下記をご覧くださいませ。当サークル男性会員様の利用明細でございます。 −−会員Ａ様のサークル利用明細−− 入会金：０円年会費：０円運営費：０円女性紹介料：０円 ************************ 小計：０円税：０円合計：０円 ************************ −−−−−−−−−−−−−−−−− この明細をご覧いただきおわかりになると思いますが、当Venus Networkは紹介料などの諸費用は一切無用の完全無料の出会いサークルでございます。そして、ご紹介するだけではなく紹介後の女性とのお付き合いの仕方いわゆる女心についての疑問や質問などに対しても全面的にバックアップさせて頂きます。その都度カスタマーセンターの者が丁寧に対応致しますのでご安心くださいませ。ご紹介につきましては日本全国に多数の女性会員様がおりますのでまず貴方様の・お住まいの地域・理想の交際方法以上２点をお聞きした上で貴方様にあった女性をピックアップしご紹介させて頂きます。お手数ですが下記の質問にお答えいただきご返信くださいませ。 ■ ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ ◆Ｑ１、貴方様がお住まいの都道府県名　　　ご記入下さい。『　　　　　』 ◆Ｑ２、女性会員と理想の交際方法１、真面目にお付き合い　　（真面目な交際・結婚前提）２、高所得女性とお付き合い（事業資金などサポートして欲しい）３、割り切ったお付き合い　（愛人・セフレ・人妻）４、過激なお付き合い　　　（３Ｐ・乱交・ＳＭ）　　　数字でご記入下さい。『　　』 ■ ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ 貴方様からのご返信を頂きましたら好みの近い女性をご紹介させて頂きます。それではご連絡お待ちしております。 Venus Network 代表　富田ゆかり

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java issues on ppc
by Orion Poplawski 15 Aug '05

15 Aug '05

I'm working on packaging plplot for Fedora Extras. It has a Java interface that appears to work fine on x86 but not on ppc. Basically the Java stuff is just a JNI wrapper to the C library. Is there any way to run the java byte-code/JVM under a debugger? My first attempt to debug was to compile the program to native code and run under gdb as mentioned on the gcj website, but the native code appears to run fine. Thanks! -- Orion Poplawski System Administrator 303-415-9701 x222 Colorado Research Associates/NWRA FAX: 303-415-9702 3380 Mitchell Lane, Boulder CO 80301 http://www.co-ra.com

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jUploadr
by Colin Charles 15 Aug '05

15 Aug '05

Hi, Downloaded the http://juploadr.sourceforge.net/ (at version 0.6) - this is a cross-platform Flickr uploader Running it on FC-4, I get: ./jUploadr Starting JUploadr... Java exec found in PATH. Verifying... Suitable java version found [java = 1.4.2] Configuring environment... java -cp :commons-codec-1.3.jar:commons-httpclient-3.0-beta1.jar:commons-logging.jar:juploadr.jar:Piccolo.jar:swt.jar:swt-mozilla.jar:swt-pi.jar -Djava.library.path=/home/byte/bin/jUploadr-0.6-linuxGTK-i386 org.scohen.juploadr.app.JUploadr '' Exception in thread "main" java.lang.UnsatisfiedLinkError: g_utf16_to_utf8 at org.eclipse.swt.internal.Converter.wcsToMbcs(java.lang.String, char[], boolean) (/usr/lib/eclipse/plugins/org.eclipse.swt.gtk_3.1.0.jar.so) at org.eclipse.swt.internal.Converter.wcsToMbcs(java.lang.String, java.lang.String, boolean) (/usr/lib/eclipse/plugins/org.eclipse.swt.gtk_3.1.0.jar.so) at org.eclipse.swt.dnd.Transfer.registerType(java.lang.String) (Unknown Source) at org.eclipse.swt.dnd.TextTransfer.<clinit>() (Unknown Source) at java.lang.Class.initializeClass() (/usr/lib/libgcj.so.6.0.0) at org.scohen.juploadr.app.JUploadr.JUploadr() (Unknown Source) at org.scohen.juploadr.app.JUploadr.main(java.lang.String[]) (Unknown Source) at gnu.java.lang.MainThread.call_main() (/usr/lib/libgcj.so.6.0.0) at gnu.java.lang.MainThread.run() (/usr/lib/libgcj.so.6.0.0) I've been told by Rahul (on #fedora-java) that it seems to start the application up in Rawhide, so am just curious to know why its dumping in FC-4 Thanks -- Colin Charles, http://www.bytebot.net/

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java-devel August 2005