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  • Can't debug Java Windows Services with jhat, jps, jstack

    - by Matthew McCullough
    I frequently showcase the jhat, jps, and jstack tool set to developers on Linux and Mac. However, a developer recently indicated that these are unusable in Windows if the Java app in question is running as a Windows Service. A Sun-filed bug says something very similar, but was closed due to inactivity. I have tested this out for myself, and indeed it appears true, though I can hardly believe it. Here is the setup: Tomcat or similar running as a Windows service with the "Log On As" == "Local System" A user with Admin privileges logged in to the same Windows machine. Admin opens Windows Task Manager, can see java.exe running Admin opens console, types "jps", gets back a list of processes that does not include Tomcat's java service process. As a brute force attempt, get the PID of tomcat as a service from Windows Task Manager. Type jstack < pid . Get a reply: < pid no such process This appears reproducible under Windows XP, Windows 2003 Server, and Windows 7. Java versions 1.5 and 1.6 yield the same outcome. Is there a way from the terminal, even though logged in as Admin, to "sudo up" to get JPS and the other tools to see the java service?

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  • How to debug move_uploaded_file() in PHP

    - by iamdadude
    move_uploaded_file() won't work for me anymore, it was working fine and just stopped out of nowhere. Is there a way for me to check why it's not working anymore? Here's what I currently have, but it only returns TRUE or FALSE. $status = move_uploaded_file($tempFile, $targetFile); if($status) { echo 'its good'; } else { echo 'it failed'; } I know the path is 100% correct and the directory is CHMOD 755. Is there anything I might be doing wrong?

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  • Compile error when trying to _debug_ a Visual Stuio integration project

    - by Rune FS
    I'm currently working on a Visual Studio integration project for VS2010 (a custom highlighter) I'm using Irony and the LanguageServiceTemplate from this Code project article. However that template is build for 2008 and the changes made in VS2010 when it comes to integrating breaks the template. When I try to compile I get the following error: Source.extension.vsixmanifest file not found in project. If a file with this name is present in the project, make sure the build action is set to "None". Any ides of what I can do to fix it?

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  • Is Debug.Assert obsolete if you write unit tests?

    - by Justin Pihony
    Just like the question asks, is there a need to add Debug.Assert into your code if you are writing unit tests (which has its own assertions)? I could see that this might make the code more obvious without having to go into the tests, however it just seems that you might end up with duplicated asserts. It seems to me that Debug.Assert was helpful before unit-testing became more prevalent, but is now unnecessary. Or, am I not thinking of some use case?

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  • Java : method to to print relative pathname?

    - by HH
    I am hesitant just to look at some env.vars and try to replace things with regexes. So is there a ready method to print relative pathnames system-independently? $ echo ~ /u/user $ pwd /u/user/OH/one/src $ echo "Like relative pathnames ~/OH/one/src, not /u/user/OH/one/src."

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  • Cannot run/debug Java applications in Eclipse (JavaTimeZone issue)

    - by Andre
    I'm trying to get started with Eclipse/Java/Scala on a MacBook. The installed JDK was 1.5. The SDT plugin for Scala requires 1.6 which was included in an OS update, but I also manually installed a package from Apple to update 1.6. The problem is that I cannot run anything from Eclipse. I always get the following error: An internal error occurred during: "Launching TestFooBasicTest". Could not initialize class com.ibm.icu.impl.JavaTimeZone I also tried to use the old 1.5 version, but to no avail. What is going wrong here?

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  • Need help to debug application using .Net and MySQL

    - by Tim Murphy
    What advice can you give me on how to track down a bug I have while inserting data into MySQL database with .Net? The error message is: MySql.Data.MySqlClient.MySqlException: Duplicate entry '26012' for key 'StockNumber_Number_UNIQUE' Reviewing of the log proves that StockNumber_Number of 26012 has not been inserted yet. Products in use. Visual Studio 2008. mysql.data.dll 6.0.4.0. Windows 7 Ultimate 64 bit and Windows 2003 32 bit. Custom built ORM framework (have source code). Importing data from Access 2003 database. The code works fine for 3000 - 5000 imports. The record being imported that causes the problem in a full run works fine if just importing by itself. I've also seen the error on other records if I sort the data to be imported a different way. Have tried import with and without transactions. Have logged the hell out of the system. The SQL command to create the table: CREATE TABLE `RareItems_RareItems` ( `RareItemKey` CHAR(36) NOT NULL PRIMARY KEY, `StockNumber_Text` VARCHAR(7) NOT NULL, `StockNumber_Number` INT NOT NULL AUTO_INCREMENT, UNIQUE INDEX `StockNumber_Number_UNIQUE` (`StockNumber_Number` ASC), `OurPercentage` NUMERIC , `SellPrice` NUMERIC(19, 2) , `Author` VARCHAR(250) , `CatchWord` VARCHAR(250) , `Title` TEXT , `Publisher` VARCHAR(250) , `InternalNote` VARCHAR(250) , `DateOfPublishing` VARCHAR(250) , `ExternalNote` LONGTEXT , `Description` LONGTEXT , `Scrap` LONGTEXT , `SuppressionKey` CHAR(36) NOT NULL, `TypeKey` CHAR(36) NOT NULL, `CatalogueStatusKey` CHAR(36) NOT NULL, `CatalogueRevisedDate` DATETIME , `CatalogueRevisedByKey` CHAR(36) NOT NULL, `CatalogueToBeRevisedByKey` CHAR(36) NOT NULL, `DontInsure` BIT NOT NULL, `ExtraCosts` NUMERIC(19, 2) , `IsWebReady` BIT NOT NULL, `LocationKey` CHAR(36) NOT NULL, `LanguageKey` CHAR(36) NOT NULL, `CatalogueDescription` VARCHAR(250) , `PlacePublished` VARCHAR(250) , `ToDo` LONGTEXT , `Headline` VARCHAR(250) , `DepartmentKey` CHAR(36) NOT NULL, `Temp1` INT , `Temp2` INT , `Temp3` VARCHAR(250) , `Temp4` VARCHAR(250) , `InternetStatusKey` CHAR(36) NOT NULL, `InternetStatusInfo` LONGTEXT , `PurchaseKey` CHAR(36) NOT NULL, `ConsignmentKey` CHAR(36) , `IsSold` BIT NOT NULL, `RowCreated` DATETIME NOT NULL, `RowModified` DATETIME NOT NULL ); The SQL command and parameters to insert the record: INSERT INTO `RareItems_RareItems` (`RareItemKey`, `StockNumber_Text`, `StockNumber_Number`, `OurPercentage`, `SellPrice`, `Author`, `CatchWord`, `Title`, `Publisher`, `InternalNote`, `DateOfPublishing`, `ExternalNote`, `Description`, `Scrap`, `SuppressionKey`, `TypeKey`, `CatalogueStatusKey`, `CatalogueRevisedDate`, `CatalogueRevisedByKey`, `CatalogueToBeRevisedByKey`, `DontInsure`, `ExtraCosts`, `IsWebReady`, `LocationKey`, `LanguageKey`, `CatalogueDescription`, `PlacePublished`, `ToDo`, `Headline`, `DepartmentKey`, `Temp1`, `Temp2`, `Temp3`, `Temp4`, `InternetStatusKey`, `InternetStatusInfo`, `PurchaseKey`, `ConsignmentKey`, `IsSold`, `RowCreated`, `RowModified`) VALUES (@RareItemKey, @StockNumber_Text, @StockNumber_Number, @OurPercentage, @SellPrice, @Author, @CatchWord, @Title, @Publisher, @InternalNote, @DateOfPublishing, @ExternalNote, @Description, @Scrap, @SuppressionKey, @TypeKey, @CatalogueStatusKey, @CatalogueRevisedDate, @CatalogueRevisedByKey, @CatalogueToBeRevisedByKey, @DontInsure, @ExtraCosts, @IsWebReady, @LocationKey, @LanguageKey, @CatalogueDescription, @PlacePublished, @ToDo, @Headline, @DepartmentKey, @Temp1, @Temp2, @Temp3, @Temp4, @InternetStatusKey, @InternetStatusInfo, @PurchaseKey, @ConsignmentKey, @IsSold, @RowCreated, @RowModified) @RareItemKey = 0b625bd6-776d-43d6-9405-e97159d172a6 @StockNumber_Text = 199305 @StockNumber_Number = 26012 @OurPercentage = 22.5 @SellPrice = 1250 @Author = SPARRMAN, Anders. @CatchWord = COOK: SECOND VOYAGE @Title = A Voyage Round the World with Captain James Cook in H.M.S. Resolution… Introduction and notes by Owen Rutter, wood engravings by Peter Barker-Mill. @Publisher = @InternalNote = @DateOfPublishing = 1944 @ExternalNote = The first English translation of Sparrman’s narrative, which had originally been published in Sweden in 1802-1818, and the only complete version of his account to appear in English. The eighteenth-century translation had appeared some time before the Swedish publication of the final sections of his account. Sparrman’s observant and well-written narrative of the second voyage contains much that appears nowhere else, emphasising naturally his interests in medicine, health, and natural history.&lt;br&gt;&lt;br&gt;One of 350 numbered copies: a handsomely produced and beautifully illustrated work. @Description = Small folio, wood-engravings in the text; original olive glazed cloth, top edges gilt, a very good copy. London, Golden Cockerel Press, 1944. @Scrap = @SuppressionKey = 00000000-0000-0000-0000-000000000000 @TypeKey = 93f58155-7471-46ad-84c5-262ab9dd37e8 @CatalogueStatusKey = 00000000-0000-0000-0000-000000000003 @CatalogueRevisedDate = @CatalogueRevisedByKey = c4f6fc06-956d-44c4-b393-0d5462cbffec @CatalogueToBeRevisedByKey = 00000000-0000-0000-0000-000000000000 @DontInsure = False @ExtraCosts = @IsWebReady = False @LocationKey = 00000000-0000-0000-0000-000000000000 @LanguageKey = 00000000-0000-0000-0000-000000000000 @CatalogueDescription = @PlacePublished = Golden Cockerel Press @ToDo = @Headline = @DepartmentKey = 529578a3-9189-40de-b656-eef9039d00b8 @Temp1 = @Temp2 = @Temp3 = @Temp4 = v @InternetStatusKey = 00000000-0000-0000-0000-000000000000 @InternetStatusInfo = @PurchaseKey = 00000000-0000-0000-0000-000000000000 @ConsignmentKey = @IsSold = True @RowCreated = 8/04/2010 8:49:16 PM @RowModified = 8/04/2010 8:49:16 PM Suggestions on what is causing the error and/or how to track down what is causing the problem?

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  • how would you debug this javascript problem?

    - by pedalpete
    I've been travelling and developing for the past few weeks. The site I'm developing was running well. Then, the other day, i connected to a network and the page 'looked' fine, but it turns out the javascript wasn't running. I checked firebug, and there were no errors, as I was suspecting that maybe a script didn't load (I'm using the google api for jQuery and jQuery UI, as well as loading google maps api and fbconnect). I would suspect that if the issue was with one of these pages not loading I would get an error, and yet there was nothing. Thinking maybe i didn't connect properly or something, i reconnected to the network and even restarted my computer, as well as trying to run the local version. I got nothing. The local version not running also hinted to me that it was the loading of an external javascript which caused the problem. I let it pass as something strange with that one network. Unfortunately now I'm 100s of miles away. Today my brother sent me an e-mail that the network he was on at the airport wouldn't load my page. Same issue. Everything is laid out properly, and part of the layout is set in Javascript, so clearly javascript is running. he too got no errors. Of course, he got on his plane, and now he is no longer at the airport. Now the site works on his computer (and i haven't changed anything). How on earth would you go about figuring out what happened in this situation? That is two of maybe 12 or so networks. But I have no idea how i would find a network that doesn't work (and living in a small town, it could be difficult for me to find a network that doesn't work). Any ideas? The site is still in Dev, so I'd rather not post a link just yet (but could in a few days). What I can see not working is the javascript functions which are called on load, and on click. So i do think it is a javascript issue, but no errors. This wouldn't be as HUGE an issue if I could find and sit on one of these networks, but I can't. So what would you do? EDIT ---------------------------------------------------------- the first function(s - their linked) that doesn't get called is below. I've cut the code of at the .ajax call as the call wasn't being made. function getResultsFromForm(){ jQuery('form#filterList input.button').hide(); var searchAddress=jQuery('form#filterList input#searchTxt').val(); if(searchAddress=='' || searchAddress=='<?php echo $searchLocation; ?>'){ mapShow(20, -40, 0, 'areaMap', 2); jQuery('form#filterList input.button').show(); return; } if (GBrowserIsCompatible()) { var geo = new GClientGeocoder(); geo.setBaseCountryCode(cl.address.country); geo.getLocations(searchAddress, function (result) { if(!result.Placemark && searchAddress!='<?php echo $searchLocation; ?>'){ jQuery('span#addressNotFound').text('<?php echo $addressNotFound; ?>').slideDown('slow'); jQuery('form#filterList input.button').show(); } else { jQuery('span#addressNotFound').slideUp('slow').empty(); jQuery('span#headerLocal').text(searchAddress); var date = new Date(); date.setTime(date.getTime() + (8 * 24 * 60 * 60 * 1000)); jQuery.cookie('address', searchAddress, { expires: date}); var accuracy= result.Placemark[0].AddressDetails.Accuracy; var lat = result.Placemark[0].Point.coordinates[1]; var long = result.Placemark[0].Point.coordinates[0]; lat=parseFloat(lat); long=parseFloat(long); var getTab=jQuery('div#tabs div#active').attr('class'); jQuery('div#tabs').show(); loadForecast(lat, long, getTab, 'true', 0); var zoom=zoomLevel(); mapShow(lat, long, accuracy, 'areaMap', zoom ); } }); } } function zoomLevel(){ var zoomarray= new Array(); zoomarray=jQuery('span.viewDist').attr('id'); zoomarray=zoomarray.split("-"); var zoom=zoomarray[1]; if(zoom==''){ zoom=5; } zoom=parseFloat(zoom); return(zoom); } function loadForecast(lat, long, type, loadForecast, page){ jQuery('div#holdForecast').empty(); var date = new Date(); var d = date.getDate(); var day = (d < 10) ? '0' + d : d; var m = date.getMonth() + 1; var month = (m < 10) ? '0' + m : m; var year='2009'; toDate=year+'-'+month+'-'+day; var genre=jQuery('span.genreblock span#updateGenre').html(); var numDays=''; var numResults=''; var range=jQuery('span.viewDist').attr('id'); var dateRange = jQuery('.updateDate').attr('id'); jQuery('div#holdShows ul.showList').html('<li class="show"><div class="showData"><center><img src="../hwImages/loading.gif"/></center></div></li>'); jQuery('div#holdShows ul.'+type+'List').livequery(function(){ jQuery.ajax({ type: "GET", url: "processes/formatShows.php", data: "output=&genre="+genre+"&numResults="+numResults+"&date="+toDate+"&dateRange="+dateRange+"&range="+range+"&lat="+lat+"&long="+long+'&page='+page, success: function(response){ EDIT 2 ----------------------------------------------------------------------------- Please keep in mind that the problem is not that I can't load the site, the site works fine on most connections, but there are times when the site doesn't work, and no errors are thrown, and nothing changes. My brother couldn't run it earlier today while I had no problems, so it was something to do with his location/network. HOWEVER, the page loads, he had a connection, it was his first time visiting the site, so nothing could have been cashed. Same with when I had the issue a few days before. I didn't change anything, and I got to a different network and everything worked fine.

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  • Need to debug LINQ simple queries in Visual Studio 2010

    - by maxima120
    I often get in a position when I need to know why my LINQ doesnt work as intended... I use object collections and extensions. I dont want spend more than couple of minutes on it. LINQ supposed to make developer's life easier not harder. I hoped VS 2010 will have it fixed but I now use RC and it still doesnt let me type LINQ and check what is going on... Says as before "Expression cannot contain lambda expressions"... Is there some add-on for Visual Studio so I can quickly and effectively run ad-hoc queries and find out what is going on and where I am wrong?

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  • Helping using FirePHP to debug a .php application

    - by Angela
    Hi, just set up FirePHP and using a framework called Qcodo / Qcubed. Has anyone heard of these on SO? Been having challenges debugging -- trying to do a fairly simple new() and save() and then output via Ajax but not getting any kind of responsiveness from errors. Any help for us, two of us have checked it out but can't seem to get a response. Thanks! BTW, here's the class which seems to be creating the problems: http://github.com/allyforce/AF-upload/blob/master/Library/Target1.class.php

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  • How can you debug Lego Mindstorms programs?

    - by chris
    Is there any way to add any sort of debugging to a Lego Mindstorms program, when using the NXT drag-and-drop environment? It would be nice to be able to monitor the status of the various sensors, but even knowing what step in the program was running would be nice.

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  • Copied App.config to (Assembly).exe.config but from folder debug application doesn't run

    - by uugan
    Gives error: "The specified named connection is either not found in the configuration, not intended to be used with the EntityClient provider, or not valid" App.config looks like and it's same as (Assembly.exe.config) config file for output: <?xml version="1.0" encoding="utf-8"?> <configuration> <connectionStrings> <add name="Entities1" connectionString="metadata=res://*/;provider=System.Data.SqlClient;provider connection string='data source=localhost;initial catalog=DatabaseName;integrated security=True;multipleactiveresultsets=True;App=EntityFramework'" providerName="System.Data.EntityClient" /> </connectionStrings> </configuration> How to run exe with it's configuration file? I tried to change '' to quot but nothing has changed.

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  • Visual ++ print from main with inheritance on visual form in listbox

    - by captencrunch
    I´ve made a "main" class lets call it A(Veichle), and i have two classes that inherits from A Lets call them B(Car) and C(MC). i also have a handler lets call it "D" that binds A,B and C. Then i have the Form1 class lets call that E(Visual) I want to print out the private members from A on the visual form "E" in a Listbox If i try ex) this-listbox1-items-add(X.veichles[i]-getBrand()); it complains that veichles is a private member in D. How can i get around that?

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  • Java: using foreach over strings from arrayList does not print anything

    - by HH
    $ javac ArrayListTest.java $ java ArrayListTest $ cat ArrayListTest.java import java.io.*; import java.util.*; public class ArrayListTest{ public static void main(String[] args) { try { String hello ="oeoaseu oeu hsoae sthoaust hoaeut hoasntu"; ArrayList<String> appendMe = null; for(String s : hello.split(" ")) appendMe.add(s+" "); for(String s : appendMe) System.out.println(s); //WHY DOES IT NOT PRINT? }catch(Exception e){ } } }

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  • Java: how to debug an invalid JSTL declaration?

    - by Webinator
    I've seen this kind of issue on SO (and on the Net overall) quite a few times. For example here: http://stackoverflow.com/questions/1884529 Earlier today I was trying on a JSP (regular .jsp, not .jspx) to do this, because I stupidly cut/pasted some example found on the net: <%@ taglib prefix = "c" uri = "http://java.sun.com/jstl/core"%> Then my .jsp was giving a blank page. No error message in the Tomcat log. No nothing. Just a blank page. While, of course (I'm being sarcastic here), the correct line was this: <%@ taglib prefix = "c" uri = "http://java.sun.com/jsp/jstl/core"%> There was a "jsp/" missing (which I found a hint to in yet another SO question). So obviously such issues are common. I can't believe you have to wait for things "not to work" to know you've there's an error and I'm honestly a bit confuzzabled by the number of questions found on the net (and here on SO) where the answer is basically "fix your declaration". My question here is simple: how do you know that it's a declaration issue? What thought process is required here to diagnose and troubleshoot such issues? Are there tools that can help here? (I don't know, like, say, IntelliJ IDEA or Eclipse or Emacs in nxml-mode warning you in real time that the declared URI is invalid?)

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  • How do I debug random Timeout::Error: execution expired

    - by ChrisH
    We are using Rails 2.3.5 and have been experiencing seemingly random Timeout::Error: execution expired errors. The errors reported by Hoptoad are not consistently in any particular controller and show up everywhere from user sessions to account settings to some of our core functionality controllers. The vast majority of requests do not Timeout but there are enough to cause concern. Is this normal? If so, what are some things to look at to decrease the occurance? If not, has anyone run into this and what are some common problems that can trigger an error like this.

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  • Tinymce print issue with application server

    - by Ashok
    Hi, I have incorporated tinymce into my application. When i execute the jsp standalone, the print size seem consistent to what it should be i.e. 12Pt comes out as 12pt. Whereas when i run the same jsp from oracle developer using oracle application server 12pt comes out to be more like 8pt. Any thoughts. Please share any pointers. Thanks, Ashok

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