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  • Applet class loader cannot find one of the classes in the jar

    - by Chry Cheng
    I get the ff. error in Java Console occassionally: Exception in thread "thread applet-my.package.MyApplet-10" java.lang.NoClassDefFoundError: another/package/SomeClass at my.package.MyApplet.init(MyApplet.java:95) at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Caused by: java.lang.ClassNotFoundException: another.package.SomeClass at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClassInternal(Unknown Source) ... 3 more Caused by: java.io.IOException: open HTTP connection failed:https://myserver/mycontext/applets/another/package/SomeClass.class at sun.plugin2.applet.Applet2ClassLoader.getBytes(Unknown Source) at sun.plugin2.applet.Applet2ClassLoader.access$000(Unknown Source) at sun.plugin2.applet.Applet2ClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) ... 7 more My applet tag is as follows: <applet codebase="../../applets" code="my.package.MyApplet" class="invisible" id="myApplet"> <param value="value0" name="param0"/> ... <param value="valueN" name="paramN" /> <param value="folder/myApplet__0.0.1177.jar,folder/commons-io-1.3.2__0.0.1177.jar,..." name="cache_archive"/> <param value="0.0.1177.0,0.0.1177.0,...," name="cache_version"/> </applet> It is important I stress the word "occasionally". Sometimes the applet is initialized without a hitch. This also means that, often, when the browser is restarted, the problem goes away. I am aware of http://stackoverflow.com/questions/698890/applet-fails-to-load-class-from-jar and http://stackoverflow.com/questions/872905/applet-class-loader-cannot-find-a-class-in-the-applets-jar but I think they are not applicable to my case. SomeClass and MyApplet are in the same jar and the page is being accessed locally.

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  • Google Maps API Key alert problem

    - by taudorf
    I have a problem with my Google Maps API key. I get an alert saying "This web site needs a different Google Maps API key." When I prees OK to the alert the map are loading and working fine. The same problem is already posted: http://stackoverflow.com/questions/1803327/google-maps-api-key-not-working I have tried to request the API key for both "http://www.domain.com" and "http://domain.com" but I still get the alert. When I follow the instructions from their FQA and use alert(window.location.host) I get www.domain.com but the api key generator will only accept the domain if the prefix is http:// Does anyone have a solution to this?

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  • Importing libraries from build.xml file in Eclipse

    - by user3873909
    I am developing a java app and I need to use jnativehook library. I have downloaded the .zip from https://code.google.com/p/jnativehook/downloads/list . There is a bin folder,src folder,build.xml,build.num and 3 .txt files when I extracted this folder. I have included this library in my project by File - project - Java project from existing Ant file And I have tried an example https://code.google.com/p/jnativehook/wiki/examples But I get the following error Exception in thread "main" java.lang.ExceptionInInitializerError at GlobalKeyListenerExample.main(GlobalKeyListenerExample.java:25) Caused by: java.lang.RuntimeException: Unable to locate the native library. at org.jnativehook.GlobalScreen.loadNativeLibrary(GlobalScreen.java:462) at org.jnativehook.GlobalScreen.<init>(GlobalScreen.java:71) at org.jnativehook.GlobalScreen.<clinit>(GlobalScreen.java:53) ... 1 more What location should I give in native library path?

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  • Source Control System. API. Get metrics

    - by w1z
    Hello all, I have next situation. I need to choise source control system for my project. This scs must provide the API to my .net application to get information about check-in-s for specified user and date period and about changes which was done in this check-in-s (the number of added and updated lines). What source control system provides this functionality? P.S. I can't use the TFS, it's a limitation

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  • Can I do the following with the Twitter API?

    - by Brian Scott
    Hi, I'm looking to do the 2 following tasks automatically via the twitter API? Allow a user to provide their credentials and have their twitter account to subscribe to my website feed directly from a form on the site. Allow a user to integrate tweets from my websites twitter feed into their outgoing tweets. I'm finding it hard to find any informationon how to achieve these, can anyone shed any light? Thanks in advance.

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  • Whats a good API for generating reports for a java web application?

    - by Ahmad
    I have a J2EE application that has a lot of reports, the situation now is the following: Report filters' values are sent to the application over DWR mainly, the data are retrieved from Oracle DB throw DB procedures and returned back to the client. However, some customization is required every now and then (new data filters, columns, ordering, ...), and these changes are painful to implement since we need to modify the JSPs, DB Procedures, the application itself, ... What API do you recommend to use for such reports?

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  • Using google maps API, how can we set the current location as the default set location using map.set

    - by vs1984
    I am writing Javascript code using Google maps API. map = new google.maps.Map2(document.getElementById("map_canvas")); map.setCenter(new google.maps.LatLng(37.4419, -122.1419), 13); The above code sets the default location of the map canvas to Palo Alto. How can we write the script in such a way that the setCenter function automatically points to the current location of the client?

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  • JNI invocation api: get method id for method with multiple parameters ...

    - by Xinus
    I want to call java function from c++ which takes multiple parameters , I have tried following statement mid=env->GetMethodID(JDeployerClass,"deploy","(Ljava/io/File;,Lorg/glassfish/api/deployment/DeployCommandParameters;)Ljava/lang/String;"); But its not working out, is there anything wrong with above statement?, What is the correct way to get method id which accepts multiple parameters ?

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  • Did we always have to register to download the Java 5 JDK, or is this new Oracle fun?

    - by Ukko
    I could swear that just a couple of months ago I downloaded a copy of the Java 1.5 SE JDK and I did not have to give them information on my first born. Today, I had to go through the register-and-we-will-send-you-a-link-someday dance. I have not received the link yet, so I thought I would ask about it here. What is special about the Java 5 JDK? I can get 6 just by clicking, is this a stick to get us to migrate to Java 6? Am I just not remembering doing this before? What marketing genius thought this would be a value add for Java? "If we make them sweat for the JDK they won't just delete it willy-nilly the next time?" Does everyone picture the people designing systems like this as mustache twirling Snidely Whiplash clones like I do? Did I just miss the link for the Secret Squirrel route to the download page? Finally, I am in the U.S. so I should not have to worry about export restrictions. Any thoughts?

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  • Threads to make video out of images

    - by masood
    updates: I think/ suspect the imageIO is not thread safe. shared by all threads. the read() call might use resources that are also shared. Thus it will give the performance of a single thread no matter how many threads used. ? if its correct . what is the solution (in practical code) Single request and response model at one time do not utilizes full network/internet bandwidth, thus resulting in low performance. (benchmark is of half speed utilization or even lower) This is to make a video out of an IP cam that gives a new image on each request. http://149.5.43.10:8001/snapshot.jpg It makes a delay of 3 - 8 seconds no matter what I do. Changed thread no. and thread time intervals, debugged the code by System.out.println statements to see if threads work. All seems normal. Any help? Please show some practical code. You may modify mine. This code works (javascript) with much smoother frame rate and max bandwidth usage. but the later code (java) dont. same 3 to 8 seconds gap. <!DOCTYPE html> <html> <head> <script type="text/javascript"> (function(){ var img="/*url*/"; var interval=50; var pointer=0; function showImg(image,idx) { if(idx<=pointer) return; document.body.replaceChild(image,document.getElementsByTagName("img")[0]); pointer=idx; preload(); } function preload() { var cache=null,idx=0;; for(var i=0;i<5;i++) { idx=Date.now()+interval*(i+1); cache=new Image(); cache.onload=(function(ele,idx){return function(){showImg(ele,idx);};})(cache,idx); cache.src=img+"?"+idx; } } window.onload=function(){ document.getElementsByTagName("img")[0].onload=preload; document.getElementsByTagName("img")[0].src="/*initial url*/"; }; })(); </script> </head> <body> <img /> </body> </html> and of java (with problem) : package camba; import java.applet.Applet; import java.awt.Button; import java.awt.Graphics; import java.awt.Image; import java.awt.Label; import java.awt.Panel; import java.awt.TextField; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.net.URL; import java.security.Timestamp; import java.util.Date; import java.util.concurrent.TimeUnit; import java.util.concurrent.atomic.AtomicBoolean; import javax.imageio.ImageIO; public class Camba extends Applet implements ActionListener{ Image img; TextField textField; Label label; Button start,stop; boolean terminate = false; long viewTime; public void init(){ label = new Label("please enter camera URL "); add(label); textField = new TextField(30); add(textField); start = new Button("Start"); add(start); start.addActionListener(this); stop = new Button("Stop"); add(stop); stop.addActionListener(this); } public void actionPerformed(ActionEvent e){ Button source = (Button)e.getSource(); if(source.getLabel() == "Start"){ for (int i = 0; i < 7; i++) { myThread(50*i); } System.out.println("start..."); } if(source.getLabel() == "Stop"){ terminate = true; System.out.println("stop..."); } } public void paint(Graphics g) { update(g); } public void update(Graphics g){ try{ viewTime = System.currentTimeMillis(); g.drawImage(img, 100, 100, this); } catch(Exception e) { e.printStackTrace(); } } public void myThread(final int sleepTime){ new Thread(new Runnable() { public void run() { while(!terminate){ try { TimeUnit.MILLISECONDS.sleep(sleepTime); } catch (InterruptedException ex) { ex.printStackTrace(); } long requestTime= 0; Image tempImage = null; try { URL pic = null; requestTime= System.currentTimeMillis(); pic = new URL(getDocumentBase(), textField.getText()); tempImage = ImageIO.read(pic); } catch(Exception e) { e.printStackTrace(); } if(requestTime >= /*last view time*/viewTime){ img = tempImage; Camba.this.repaint(); } } }}).start(); System.out.println("thread started..."); } }

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  • Applet problem with IPlanet and Firefox (class not found)

    - by JB Hurteaux
    I have an applet which loads nicely when accessed locally (both IE and Firefox). However, when I put my webpage in a webserver (local IPlanet), it refuses to load on Firefox (but still fine on IE). I get the following error in the java console: load: class XXX.localprinting.LocalPrintingApplet.class not found. java.lang.ClassNotFoundException: XXX.localprinting.LocalPrintingApplet.class at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source) at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source) at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Caused by: java.io.IOException: open HTTP connection failed:https://XXX/test/XXX/localprinting/LocalPrintingApplet/class.class at sun.plugin2.applet.Applet2ClassLoader.getBytes(Unknown Source) at sun.plugin2.applet.Applet2ClassLoader.access$000(Unknown Source) at sun.plugin2.applet.Applet2ClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) ... 7 more Exception: java.lang.ClassNotFoundException: XXX.localprinting.LocalPrintingApplet.class Any idea what could explain the different behavior in the webserver? I researched the issue of "class not found" already but without finding something relevant.

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  • How can I create a Searchstring for a Google AJAX Search API?

    - by elmaso
    Hello, i have this code to get the search resutls from the api: querygoogle.php: <?php session_start(); // Here's the Google AJAX Search API url for curl. It uses Google Search's site:www.yourdomain.com syntax to search in a specific site. I used $_SERVER['HTTP_HOST'] to find my domain automatically. Change $_POST['searchquery'] to your posted search query $url = 'http://ajax.googleapis.com/ajax/services/search/web?rsz=large&v=1.0&start=20&q=' . urlencode('' . $_POST['searchquery']); // use fopen and fread to pull Google's search results $handle = fopen($url, 'rb'); $body = ''; while (!feof($handle)) { $body .= fread($handle, 8192); } fclose($handle); // now $body is the JSON encoded results. We need to decode them. $json = json_decode($body); // now $json is an object of Google's search results and we need to iterate through it. foreach($json->responseData->results as $searchresult) { if($searchresult->GsearchResultClass == 'GwebSearch') { $formattedresults .= ' <div class="searchresult"> <h3><a href="' . $searchresult->unescapedUrl . '">' . $searchresult->titleNoFormatting . '</a></h3> <p class="resultdesc">' . $searchresult->content . '</p> <p class="resulturl">' . $searchresult->visibleUrl . '</p> </div>'; } } $_SESSION['googleresults'] = $formattedresults; header('Location: ' . $_SERVER['HTTP_REFERER']); exit; ?> search.php <?php session_start(); ?> <form method="post" action="querygoogle.php"> <label for="searchquery"><span class="caption">Search this site</span> <input type="text" size="20" maxlength="255" title="Enter your keywords and click the search button" name="searchquery" /></label> <input type="submit" value="Search" /> </form> <?php if(!empty($_SESSION['googleresults'])) { echo $_SESSION['googleresults']; unset($_SESSION['googleresults']); } ?> but with this code, I cant add a searchstring.. how can i add a search string like search.php?search=keyword ? thanks

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  • How to get the name of a placemark using google earth api?

    - by user1444402
    I'm trying to create a web page where an user could manage diferent placemark. The management is based on create, drag and drop and delete placemarks. At the moment, I've achieved to create multiple placemarks and drag&drop them but I'm not able to delete it because I cannot identify them individually. I'm using the google earth api examples1 but I cannot find this functionality. I want to get the name of the different placemarks, any idea?

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  • Can I set Java max heap size for running from a jar file?

    - by Kip
    I am launching a java jar file which often requires more than the default 64MB max heap size. A 256MB heap size is sufficient for this app though. Is there anyway to specify (in the manifest maybe?) to always use a 256MB max heap size when launching the jar? (More specific details below, if needed.) This is a command-line app that I've written in Java, which does some image manipulation. On high-res images (about 12 megapixels and above, which is not uncommon) I get an OutOfMemoryError. Currently I'm launching the app from a jar file, i.e. java -jar MyApp.jar params... I can avoid an OutOfMemoryError by specifying 256MB max heap size on the command line, i.e.: java -Xmx256m -jar MyApp.jar params... However, I don't want to have to specify this, since I know that 256MB is sufficient even for high-res images. I'd like to have that information saved in the jar file. Is that possible?

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