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#157 SpellCheck freeze

closed-fixed
None
5
2008-06-22
2003-08-12
No

Running SpellCheck release 004 which i've installed
throught Plugin Manager with jEdit 4.1 it simply freeze
the VM and the only way to get at it is a -15 signal to
the java process

Enviroment:
Linux 2.4.20
JDK 1.4.2 (build 1.4.2-b28)
aspell 0.33.7.1

I've also runned jedit from a terminal to see more
output but nothing happens.

Discussion

  • Eric Le Lay

    Eric Le Lay - 2007-12-06

    Logged In: YES
    user_id=1725856
    Originator: NO

    I have a patch against R004 for this bug, but I don't know how to attach it.

    Here it is:
    >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
    diff -r SpellCheck-R004/SpellCheck/cswilly/jeditPlugins/spell/SpellCheckOptionPane.java ./cswilly/jeditPlugins/spell/SpellCheckOptionPane.java
    37a38,40
    > import org.gjt.sp.util.Log;
    >
    > import cswilly.spell.SpellException;
    60,61c63,64
    < Vector values = SpellCheckPlugin.getAlternateLangDictionaries();
    <
    ---
    > Vector values = null;
    >
    90,97c93
    < String aspellMainLanguage = jEdit.getProperty( SpellCheckPlugin.ASPELL_LANG_PROP, "" );
    <
    < if ( !values.contains( aspellMainLanguage ) )
    < values.add( aspellMainLanguage );
    <
    < _aspellMainLanguageList = new JComboBox( values );
    < _aspellMainLanguageList.setSelectedItem( aspellMainLanguage );
    < _aspellMainLanguageList.setEditable( true );
    ---
    > String aspellMainLanguage = jEdit.getProperty( SpellCheckPlugin.ASPELL_LANG_PROP, "" );
    99c95,111
    < addComponent( _aspellMainLanguageList );
    ---
    > try{
    > values = SpellCheckPlugin.getAlternateLangDictionaries();
    > if (!"".equals(aspellMainLanguage) && !values.contains( aspellMainLanguage ) )
    > values.add( aspellMainLanguage );
    >
    > _aspellMainLanguageList = new JComboBox( values );
    > _aspellMainLanguageList.setSelectedItem( aspellMainLanguage );
    > _aspellMainLanguageList.setEditable( true );
    >
    > addComponent( _aspellMainLanguageList );
    > }catch(SpellException spe){
    > Log.log(Log.ERROR,SpellCheckOptionPane.class,spe);
    > JLabel erreur = new JLabel(jEdit.getProperty("list-dict-error.message",
    > new Object[]{spe.getMessage()}));
    > addComponent(erreur);
    > _aspellMainLanguageList=null;
    > }
    159c171,174
    < jEdit.setProperty( SpellCheckPlugin.ASPELL_LANG_PROP, _aspellMainLanguageList.getSelectedItem().toString().trim() );
    ---
    > if(_aspellMainLanguageList != null)
    > jEdit.setProperty( SpellCheckPlugin.ASPELL_LANG_PROP, _aspellMainLanguageList.getSelectedItem().toString().trim() );
    > else
    > jEdit.unsetProperty( SpellCheckPlugin.ASPELL_LANG_PROP);
    diff -r SpellCheck-R004/SpellCheck/cswilly/jeditPlugins/spell/SpellCheckPlugin.java ./cswilly/jeditPlugins/spell/SpellCheckPlugin.java
    26a27
    > import cswilly.spell.TimeoutInputStreamNoPoll;
    40a42,45
    > import java.util.regex.Pattern;
    > import java.util.regex.Matcher;
    >
    >
    52a58,61
    > public static final long LIST_DICTS_DEFAULT_TIMEOUT = 2000;
    > public static final String LIST_DICTS_TIMEOUT_PROP = "list-dicts-timeout";
    > public static final long SPELL_CHECK_DEFAULT_TIMEOUT = 5000;
    > public static final String SPELL_CHECK_TIMEOUT_PROP = "spell-check-timeout";
    59,60c68
    < private static String aspellCommandLine;
    <
    ---
    > private static List aspellCommandLine;
    62,65d69
    < /**
    < * Method called by jEdit to initialize the plugin.
    < */
    < //public void start() {}
    67,96d70
    < /**
    < * Method called by jEdit before exiting. Usually, nothing
    < * needs to be done here.
    < */
    < //public void stop() {}
    <
    < /**
    < * Method called every time a view is created to set up the
    < * Plugins menu. Menus and menu items should be loaded using the
    < * methods in the GUIUtilities class, and added to the list.
    < * @param menuItems Add menuitems here
    < */
    < public void createMenuItems(Vector menuItems)
    < {
    < menuItems.addElement( GUIUtilities.loadMenu( SPELL_CHECK_ACTIONS ) );
    < }
    <
    < /**
    < * Method called every time the plugin options dialog box is
    < * displayed. Any option panes created by the plugin should be
    < * added here.
    < * @param optionsDialog The plugin options dialog box
    < *
    < * @see OptionPane
    < * @see OptionsDialog#addOptionPane(OptionPane)
    < */
    < public void createOptionPanes(OptionsDialog optionsDialog)
    < {
    < optionsDialog.addOptionPane( new SpellCheckOptionPane() );
    < }
    165c139
    < String aspellCommandLine = "";
    ---
    > List aspellCommandLine = new ArrayList(4);
    169c143
    < aspellCommandLine += " --mode=sgml";
    ---
    > aspellCommandLine.add("--mode=sgml");
    172,173c146,157
    < if ( !aspellMainLanguage.equals("") )
    < aspellCommandLine += " --lang=" + aspellMainLanguage + " --language-tag=" + aspellMainLanguage;
    ---
    > if ( !aspellMainLanguage.equals("") ){
    > aspellCommandLine.add("--lang=" + aspellMainLanguage);
    > //can't find this option, so removing:
    > //aspellCommandLine.add("--language-tag=" + aspellMainLanguage);
    > }
    >
    > if ( !aspellMainLanguage.equals("") ){
    > String aspellOtherParams = getAspellOtherParams();
    > for(StringTokenizer st=new StringTokenizer(aspellOtherParams);st.hasMoreTokens();){
    > aspellCommandLine.add(st.nextToken());
    > }
    > }
    175,181c159
    < String aspellOtherParams = getAspellOtherParams();
    < if ( !aspellMainLanguage.equals("") )
    < aspellCommandLine += " " + aspellOtherParams;
    <
    < aspellCommandLine += " pipe";
    <
    < setAspellCommandLine( aspellCommandLine);
    ---
    > aspellCommandLine.add("pipe");
    182a161
    > setAspellCommandLine(aspellCommandLine);
    210a190
    > Log.log(Log.ERROR,SpellCheckPlugin.class,"Aspell command line is: "+aspellCommandLine);
    218a199
    > Log.log(Log.ERROR,SpellCheckPlugin.class,"Aspell command line is: "+aspellCommandLine);
    236,237c217,218
    < String aspellCommandLine = getAspellCommandLine();
    <
    ---
    > String[] aspellCommandLine = (String[])getAspellCommandLine().toArray(new String[]{});
    > long timeout = getSpellCheckTimeout();
    242c223
    < _fileSpellChecker = new FileSpellChecker( aspellExeFilename, aspellCommandLine );
    ---
    > _fileSpellChecker = new FileSpellChecker( aspellExeFilename, aspellCommandLine, timeout );
    245c226
    < || !aspellCommandLine.equals( _fileSpellChecker.getAspellCommandLine() ) )
    ---
    > || !Arrays.asList(aspellCommandLine).equals( Arrays.asList(_fileSpellChecker.getAspellCommandLine()) ) )
    248c229
    < _fileSpellChecker = new FileSpellChecker( aspellExeFilename, aspellCommandLine );
    ---
    > _fileSpellChecker = new FileSpellChecker( aspellExeFilename, aspellCommandLine, timeout );
    282c263
    < String getAspellCommandLine()
    ---
    > List getAspellCommandLine()
    285c266
    < aspellCommandLine = "";
    ---
    > aspellCommandLine = new ArrayList();
    291c272
    < void setAspellCommandLine(String newCommandLine)
    ---
    > void setAspellCommandLine(List newCommandLine)
    338a320,349
    > private static long getListDictionnariesTimeout(){
    > long timeout = LIST_DICTS_DEFAULT_TIMEOUT;
    > String stimeout = jEdit.getProperty(LIST_DICTS_TIMEOUT_PROP);
    > if(stimeout != null){
    > try{
    > timeout = Long.parseLong(stimeout);
    > }catch(NumberFormatException nfe){
    > jEdit.setProperty(LIST_DICTS_TIMEOUT_PROP,String.valueOf(LIST_DICTS_DEFAULT_TIMEOUT));
    > }
    > }else{
    > jEdit.setProperty(LIST_DICTS_TIMEOUT_PROP,String.valueOf(LIST_DICTS_DEFAULT_TIMEOUT));
    > }
    > return timeout;
    > }
    >
    > private static long getSpellCheckTimeout(){
    > long timeout = SPELL_CHECK_DEFAULT_TIMEOUT;
    > String stimeout = jEdit.getProperty(SPELL_CHECK_TIMEOUT_PROP);
    > if(stimeout != null){
    > try{
    > timeout = Long.parseLong(stimeout);
    > }catch(NumberFormatException nfe){
    > jEdit.setProperty(SPELL_CHECK_TIMEOUT_PROP,String.valueOf(SPELL_CHECK_DEFAULT_TIMEOUT));
    > }
    > }else{
    > jEdit.setProperty(SPELL_CHECK_TIMEOUT_PROP,String.valueOf(SPELL_CHECK_DEFAULT_TIMEOUT));
    > }
    > return timeout;
    > }
    >
    340c351
    < Vector getAlternateLangDictionaries()
    ---
    > Vector getAlternateLangDictionaries() throws SpellException
    342d352
    < String dictDirPath = null;
    346,382c356,391
    < try
    < {
    < // first we try to dump the aspell config into a BufferedReader
    < BufferedReader input = new BufferedReader( new InputStreamReader( Runtime.getRuntime().exec( aspellExeFilename + " dump config" ).getInputStream() ) );
    < // then we search for the dict-dir keyword to pick up its value
    < while ( ( line = input.readLine() ) != null )
    < {
    < if ( line.indexOf( "dict-dir" ) > 0 )
    < dictDirPath = line.trim().substring( line.lastIndexOf( " " ) + 1 );
    < }
    < input.close();
    < if ( dictDirPath != null )
    < {
    < // ok, we have found it
    < File dictDir = new File( dictDirPath );
    < // now, we check that the value found is a directory...
    < if ( dictDir.isDirectory() )
    < {
    < // ...inside which we get all installed dictionaries (all files)
    < File[] langFiles = dictDir.listFiles();
    < for (int i = 0; i < langFiles.length; i++)
    < {
    < // we remove suffix if any
    < String dict = langFiles[i].getName();
    < int pos = dict.lastIndexOf(".");
    < if ( pos >= 0 )
    < dict = dict.substring(0,pos);
    < // and then add the dictionary into the vector unless it is already there
    < if ( ! langs.contains(dict) )
    < langs.add( dict );
    < }
    < }
    < }
    < }
    < catch ( IOException e )
    < {
    < }
    ---
    > Process process = null;
    > try
    > {
    > //directly dump the aspell dicts
    > long timeout = getListDictionnariesTimeout();
    >
    > ProcessBuilder pb = new ProcessBuilder(
    > Arrays.asList(new String[]{aspellExeFilename,"dump","dicts"}));
    >
    > pb.redirectErrorStream(true);
    >
    > Log.log(Log.MESSAGE,SpellCheckPlugin.class, "Executing "+pb.command());
    > process = pb.start();
    >
    > BufferedReader input = new BufferedReader(new InputStreamReader(
    > new TimeoutInputStreamNoPoll(process.getInputStream(),timeout) ) );
    >
    > // each line is a dictionnary
    > Pattern p = Pattern.compile("^[a-z]{2}[-\\w]*$");//at least 2 letters language code, then anything
    >
    > while ( ( line = input.readLine() ) != null )
    > {
    > if(!p.matcher(line).matches())
    > throw new IOException("Suspect dictionnary name ("+line+")");
    > langs.add(line);
    > }
    > }
    > catch ( IOException e )
    > {
    > Log.log(Log.ERROR, SpellCheckPlugin.class, "Exception while listing dicts");
    > Log.log(Log.ERROR, SpellCheckPlugin.class,e);
    > throw new SpellException(e.getMessage());
    > }finally{
    > if(process != null)process.destroy();
    > }
    >
    diff -r SpellCheck-R004/SpellCheck/cswilly/jeditPlugins/spell/SpellCheckPlugin.props ./cswilly/jeditPlugins/spell/SpellCheckPlugin.props
    4,5c4,5
    < plugin.cswilly.jeditPlugins.spell.SpellCheckPlugin.author=C. Scott Willy, L. Fiol
    < plugin.cswilly.jeditPlugins.spell.SpellCheckPlugin.version=R004
    ---
    > plugin.cswilly.jeditPlugins.spell.SpellCheckPlugin.author=C. Scott Willy, L. Fiol, Eric Le Lay
    > plugin.cswilly.jeditPlugins.spell.SpellCheckPlugin.version=R004-patch-timeout
    7c7,8
    <
    ---
    > plugin.cswilly.jeditPlugins.spell.SpellCheckPlugin.activate=defer
    > plugin.cswilly.jeditPlugins.spell.SpellCheckPlugin.usePluginHome=true
    10,11c11,12
    < plugin.cswilly.jeditPlugins.spell.SpellCheckPlugin.depend.0=jedit 04.00.01.00
    < plugin.cswilly.jeditPlugins.spell.SpellCheckPlugin.depend.1=jdk 1.2
    ---
    > plugin.cswilly.jeditPlugins.spell.SpellCheckPlugin.depend.0=jedit 04.03.11.00
    > plugin.cswilly.jeditPlugins.spell.SpellCheckPlugin.depend.1=jdk 1.5
    13a15,16
    > plugin.cswilly.jeditPlugins.spell.SpellCheckPlugin.option-pane=SpellCheck
    > options.SpellCheck.code=new cswilly.jeditPlugins.spell.SpellCheckOptionPane();
    28c31
    < spell-check-menu=\
    ---
    > plugin.cswilly.jeditPlugins.spell.SpellCheckPlugin.menu=\
    45a49,54
    >
    > list-dict-error.message=<html><p style='color:red'>Unable to list dictionnaries :<br>{0}</p>
    >
    > ### Timeouts
    > list-dict-timeout=2000
    > spell-check-timeout=5000
    diff -r SpellCheck-R004/SpellCheck/cswilly/spell/AspellEngine.java ./cswilly/spell/AspellEngine.java
    41c41
    < public AspellEngine( String aSpellCommandLine )
    ---
    > public AspellEngine( String aspell, String[] aSpellArgs, long timeout)
    43a44,46
    > List l = new ArrayList(aSpellArgs.length+1);
    > l.add(aspell);
    > l.addAll(Arrays.asList(aSpellArgs));
    46,47c49,52
    < Runtime runtime = Runtime.getRuntime();
    < _aSpellProcess = runtime.exec( aSpellCommandLine );
    ---
    > ProcessBuilder pb = new ProcessBuilder(l);
    > //this to allow us to catch error messages from Aspell
    > pb.redirectErrorStream(true);
    > _aSpellProcess = pb.start();
    50c55
    < new BufferedReader( new InputStreamReader( _aSpellProcess.getInputStream() ) );
    ---
    > new BufferedReader( new InputStreamReader( new TimeoutInputStreamNoPoll(_aSpellProcess.getInputStream(), timeout)) );
    55a61,65
    > if(_aSpellWelcomeMsg == null){
    > throw new SpellException("Can't read Aspell Welcome Message");
    > }else if(_aSpellWelcomeMsg.startsWith("Error:")){
    > throw new SpellException("Aspell responded : "+_aSpellWelcomeMsg);
    > }
    59c69
    < String msg = "Cannot create aspell process.";
    ---
    > String msg = "Cannot create aspell process.\n("+l+")";
    diff -r SpellCheck-R004/SpellCheck/cswilly/spell/FileSpellChecker.java ./cswilly/spell/FileSpellChecker.java
    38c38,39
    < private String _aspellCommandLine;
    ---
    > private String[] _aspellCommandLine;
    > private long _aspellTimeout;
    71c72
    < public FileSpellChecker( String aspellExeFilename, String aspellCommandLine )
    ---
    > public FileSpellChecker( String aspellExeFilename, String[] aspellCommandLine, long aspellTimeout )
    74a76
    > _aspellTimeout = aspellTimeout;
    79c81
    < this( "O:\\local\\aspell\\aspell.exe", "" );
    ---
    > this( "O:\\local\\aspell\\aspell.exe",new String[]{"pipe"},2000);
    138c140
    < String getAspellCommandLine()
    ---
    > String[] getAspellCommandLine()
    158c160
    < _spellEngine = new AspellEngine( _aspellExeFilename + _aspellCommandLine );
    ---
    > _spellEngine = new AspellEngine( _aspellExeFilename, _aspellCommandLine, _aspellTimeout );
    diff -r SpellCheck-R004/SpellCheck/cswilly/spell/TestSpellChecker.java ./cswilly/spell/TestSpellChecker.java
    45c45,46
    < String aSpellCommandLine = "O:\\local\\aspell\\aspell.exe pipe";
    ---
    > String aSpellCommand ="O:\\local\\aspell\\aspell.exe";
    > String[] aSpellArgs = {"pipe"};
    47c48
    < AspellEngine spellChecker = new AspellEngine( aSpellCommandLine );
    ---
    > AspellEngine spellChecker = new AspellEngine( aSpellCommand, aSpellArgs, 2000 );
    92c93
    < changeToDialog.show();
    ---
    > changeToDialog.setVisible(true);
    diff -r SpellCheck-R004/SpellCheck/cswilly/spell/Validator.java ./cswilly/spell/Validator.java
    114c114
    < validationDialog.show();
    ---
    > validationDialog.setVisible(true);
    >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
    And a new file : cswilly/spell/TimeoutInputStreamNoPoll.java
    >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
    /*
    * $Revision: 117 $
    * $Date: 2007-12-06 11:41:04 +0100 (Jeu, 06 déc 2007) $
    * $Author: eric $
    *
    * Copyright (C) 2007 Eric Le Lay
    *
    * This program is free software; you can redistribute it and/or
    * modify it under the terms of the GNU General Public License Version 2, June 1991
    * as published by the Free Software Foundation
    *
    * This program is distributed in the hope that it will be useful,
    * but WITHOUT ANY WARRANTY; without even the implied warranty of
    * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    * GNU General Public License for more details.
    *
    * You should have received a copy of the GNU General Public License
    * along with this program; if not, write to the Free Software
    * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
    */
    package cswilly.spell;

    import java.io.*;

    /**
    * A class providing non indefinitely blocking read(..) methods
    * It uses polling over the available() method of the given InputStream.
    * It is not thread-safe in the sense that two subsequent calls to read(..,timeout),
    * where timeout>0 on a blocking stream will not allways result on first call getting
    * first bytes of input, and second call trailing bytes.
    * But there is no shared data, and no lock what so ever.
    * As polling is used, one should choose wisely the pollInterval (obviously < timeout).
    * @author Eric Le Lay
    */
    public class TimeoutInputStreamNoPoll extends FilterInputStream{
    private long timeout;

    public TimeoutInputStreamNoPoll(InputStream in, long timeout){
    super(in);
    this.timeout = timeout;
    }

    public int read(byte[] b, int off, int len) throws IOException{
    //optimisation
    if(in.available()>=len)return in.read(b,off,len);

    InputStreamArrayWorker worker = new InputStreamArrayWorker(b,off,len);

    try{
    worker.start();
    worker.join (timeout);
    }catch(InterruptedException ie){
    throw new InterruptedIOException("Read interrupted (timeout of "+timeout+"ms)");
    }
    if(worker.isAlive()){
    throw new InterruptedIOException("Read timeout (timeout of "+timeout+"ms)");
    }else if(worker.ioe != null){
    throw worker.ioe;
    }else{
    return worker.ret;
    }
    }

    public int read() throws IOException{
    int avail = in.available();
    if(avail > 0)return in.read();

    InputStreamIntWorker worker = new InputStreamIntWorker();

    try{
    worker.start();
    worker.join (timeout);
    }catch(InterruptedException ie){
    throw new InterruptedIOException("Read interrupted (timeout of "+timeout+"ms)");
    }
    if(worker.isAlive()){
    throw new InterruptedIOException("Read timeout (timeout of "+timeout+"ms)");
    }else if(worker.ioe != null){
    throw worker.ioe;
    }else{
    return worker.ret;
    }
    }

    public int available() throws IOException{
    return in.available();
    }

    class InputStreamArrayWorker extends Thread{

    private IOException ioe;

    private byte[] b;
    private int off;
    private int len;
    private int ret;

    InputStreamArrayWorker(byte[] b, int off, int len){
    this.b = b;
    this.off = off;
    this.len = len;

    ioe = null;
    ret = 0;
    }

    public void run(){
    try{
    ret = in.read(b,off,len);
    }catch(IOException ioe){
    this.ioe = ioe;
    }
    }

    }

    class InputStreamIntWorker extends Thread{

    private IOException ioe;

    private int ret;

    InputStreamIntWorker(){
    ioe = null;
    ret = 0;
    }

    public void run(){

    try{
    ret = in.read();
    }catch(IOException ioe){
    this.ioe = ioe;
    }
    }

    }
    }
    >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

    Tested on:
    Mac OS X 10.4.9
    Apple JDK 1.5.0_07
    jEdit 4.3pre11
    Aspell 0.60.5

     
  • Eric Le Lay

    Eric Le Lay - 2007-12-06

    Logged In: YES
    user_id=1725856
    Originator: NO

    Oups,
    - Thunderbird makes a mess out of the diff
    - In AspellEngine, I don't destroy the process in case of Errors => New Diff for AspellEngine.java coming soon...

    By the way, the bug with SpellCheck was that it reads aspell command output in the main thread, and assumes that read will never block. But this is not true if the user specifies a wrong executable, or if one option is wrong.

    So I added TimeoutInputStreamNoPoll, which creates a new thread for each read() and waits for it with a timeout. If the timeout expires, it throws an exception. This allows to transparently handle the freezing problem.

    I also switched to ProcessBuilder, to merge error and output streams, so we can get the error messages from aspell (like Error : wrong option xyz). It's more informative for the user.

    I also changed the procedure to list the dictionaries: "aspell dump dicts" directly gives us the list of dictionaries, instead of finding the directory where dicts are and then looking for each and every file.

    If SpellCheckPlugin.listDictionnaries() fails, it throws an exception, so that SpellCheckOptionPane._init() can report the error (nice red text) and don't display the combo-box with languages.

    Timeout values are controlled by properties, so that the user can adjust them.
    For the moment, it must be done via Beanshell.

    Also added a property for deferred loading and fixed the way the menus and option-pane are constructed.

     
  • Eric Le Lay

    Eric Le Lay - 2008-05-03
    • assigned_to: nobody --> kerik-sf
     
  • Alan Ezust

    Alan Ezust - 2008-05-04

    Logged In: YES
    user_id=935841
    Originator: NO

    On the bottom of the page you used to add a comment, there is a link "upload and attach file".
    Pasting patches into the tracker won't work at all.

     
  • Eric Le Lay

    Eric Le Lay - 2008-05-04

    Logged In: YES
    user_id=1725856
    Originator: NO

    Sure, thank you for the tip.
    I ended issuing a patch request, which is there: https://sourceforge.net/tracker/?func=detail&aid=1850005&group_id=588&atid=997937

    But now I'm working on the source in jEdit repository.
    I think the bug is resolved in revision r12546.
    Soon I will upload a pre-built jar, if you would like to test it.

     
  • Eric Le Lay

    Eric Le Lay - 2008-06-22

    Logged In: YES
    user_id=1725856
    Originator: NO

    Fixed in release R005

     
  • Eric Le Lay

    Eric Le Lay - 2008-06-22
    • status: open --> closed-fixed
     

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