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  • Memory dump much smaller than available memory

    - by Daniel
    I have a Tomcat Application Server that is configured to create a memory dump on OOM, and it is started with -Xmx1024M, so a Gigabyte should be available to him. Now I found one such dump and it contains only 260MB of unretained memory. How is it possible that the dump is so much smaller than the size he should have available?

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  • Quartz.properties

    - by pandi-sus
    I developed an EAR using Quartz API. I have put my quartz.properties file in the classpath(WEB-INF/classes in war). Added following lines to web.xml file <context-param> <param-name>config-file</param-name> <param-value>/WEB-INF/classes/quartz.properties</param-value> </context-param> But Quartz still loads the default properties file from the quartz.jar

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  • How to get fan list of Facebook page or can overwite facebook social plugin css?

    - by Vaibhav Bhalke
    Hi, We are trying it with facebook social plugin. The HTML code for it as follow: <iframe border='0' src='http://www.facebook.com/plugins/likebox.php?id=1185611481&width=243&height=400&connections=15&stream=false&header=false' scrolling='yes' frameborder='0' allowTransparency='false' style='border:0px; overflow:hidden; width:243px; height:300px; background-color: #03869E; color: white;'> <iframe> As it replace inner HTML of frame on load. We want our own CSS to apply to this HTML. But as it replace whole HTML and it have its own CSS we are unable to set our CSS. We are doing this in GWT. Is there any way we can get the list of fans so we can display it as we want and can apply css? Or check given user is fan of page?

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  • How to change the cursor type

    - by Jessy
    This question is related to the previous post. http://stackoverflow.com/questions/2532936/how-to-save-file-and-read How can I change the cursor to "Hand" only when the mouse pointed on grid which is not Null (contained images)? So far the cursor turn to "Hand" all over the grids (null or not null). public GUI() { .... JPanel pDraw = new JPanel(); .... for(Component component: pDraw.getComponents()){ JLabel lbl = (JLabel)component; //add mouse listener to grid box which contained image if (lbl.getIcon() != null) lbl.addMouseListener(this); } public void mouseEntered(MouseEvent e) { Cursor cursor = Cursor.getDefaultCursor(); //change cursor appearance to HAND_CURSOR when the mouse pointed on images cursor = Cursor.getPredefinedCursor(Cursor.HAND_CURSOR); setCursor(cursor); }

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  • Illegal forward reference

    - by Troy
    When trying to declare a static array in my program I receive a static forward reference error, i'm not sure what I am doing wrong here... static Square fieldGrid [ ] [ ] = new Square [ ROWSIZE ] [ COLSIZE ]; this is what I am using.

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  • Android: Context menu doesn't show up for ListView with members defined by LinearLayout?

    - by RandomEngy
    I've got a ListActivity and ListView and I've bound some data to it. The data shows up fine, and I've also registered a context menu for the view. When I display the list items as just a simple TextView, it works fine: <TextView xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/nametext" android:layout_width="wrap_content" android:layout_height="wrap_content"/> However when I try something a bit more complex, like show the name and a CheckBox, the menu never shows up: <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="horizontal"> <TextView android:id="@+id/nametext" android:layout_width="wrap_content" android:layout_height="wrap_content"/> <CheckBox android:id="@+id/namecheckbox" android:layout_width="wrap_content" android:layout_height="wrap_content" /> </LinearLayout> Can long-presses work on more complex elements? I'm building on 2.1.

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  • Apache POI Comment Excel

    - by Marquinio
    I need to add a comment to an HSSF Cell in Excel. Everything works fine the very first time but if I open the same file and run the code again it corrupts the file. I've also noticed that I need to create a Drawing object on a Sheet only once: _sheet.createDrawingPatriarch(); If the line above gets executed more than once comments will not work. So has anyone tried adding comments to Cells, closing the file, opening the file again and trying to add more comments to different cells? The below code works but if I open the file again then comments are not added, plus the file gets corrupted!!! Is there a way to get the existing Drawing object from a Sheet? Any ideas appreciated. Thanks!! _drawing = (HSSFPatriarch) _sheet.createDrawingPatriarch(); Row row = _sheet.getRow(rowIndex_); Cell cell = row.getCell(0); CreationHelper factory = _workbook.getCreationHelper(); HSSFAnchor anchor = new HSSFClientAnchor(0, 0, 0, 0, (short)4, 2, (short)6, 5); org.apache.poi.ss.usermodel.Comment comment = _drawing.createComment(anchor); RichTextString str = factory.createRichTextString("Hello, World "+rowIndex_); comment.setString(str); cell.setCellComment(comment);

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  • How would you handle making an array or list that would have more entries than the standard implemen

    - by faceless1_14
    I am trying to create an array or list that could handle in theory, given adequate hardware and such, as many as 100^100 BigInteger entries. The problem with using an array or standard list is that they can only hold Integer.MAX_VALUE number of entries. How would you work around this limitations? A whole new class/interface? A wrapper for list? another data type entirely?

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  • Large margin by long title

    - by Kevin Koenen
    I try to show a list of offers. When an advertiser insert a large title, the margin of an item (offer) will be showed what shouldn't. I've tried different layouts but that doesn't work. Link to image :) You see, some of the items has a large margin. Here's the code: <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/gallerylayout" android:layout_width="fill_parent" android:layout_height="fill_parent"> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_height="wrap_content" android:gravity="left|center" android:layout_width="wrap_content" android:paddingBottom="2dp" android:paddingTop="2dp" android:paddingLeft="5dp" android:background="#20000000" android:cacheColorHint="#00000000"> <ImageView android:id="@+id/ad_image_small" android:layout_width="wrap_content" android:layout_height="fill_parent" android:layout_marginRight="6dip" android:src="@drawable/ic_launcher"/> <LinearLayout android:orientation="vertical" android:layout_width="0dip" android:layout_weight="1" android:layout_height="fill_parent"> <TextView android:id="@+id/ad_id" android:visibility="gone" android:layout_width="wrap_content" android:layout_height="wrap_content"/> <TextView android:id="@+id/ad_img_url" android:visibility="gone" android:layout_width="wrap_content" android:layout_height="wrap_content"/> <LinearLayout android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="wrap_content"> <TextView android:id="@+id/ad_title" android:layout_width="wrap_content" android:layout_height="wrap_content" android:padding="3dp" android:gravity="left" android:textColor="#000000" android:ellipsize="end" android:singleLine="true"/> <TextView android:id="@+id/ad_km" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_margin="3dp" android:layout_marginBottom="1dp" android:textColor="#000000" android:gravity="right"/> </LinearLayout> <LinearLayout android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="wrap_content"> <TextView android:id="@+id/ad_text" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="3dp" android:textColor="#0099CC" android:ellipsize="end" android:singleLine="true"/> </LinearLayout> <LinearLayout android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_margin="2dp" android:padding="5dp"> <ImageView android:id="@+id/ad_clock" android:layout_width="20dp" android:layout_height="20dp" android:layout_marginRight="5dip" android:src="@drawable/icon_clock"/> <ProgressBar android:id="@+id/progressbar" android:layout_width="match_parent" android:layout_height="8dp" android:layout_margin="5dp" android:paddingLeft="2dp" android:max="100" style="?android:attr/progressBarStyleHorizontal" android:progressDrawable="@drawable/color_progressbar" /> </LinearLayout> </LinearLayout> </LinearLayout> <ImageView android:id="@+id/overlay_image" android:background="#0000" android:src="@drawable/verlopen2x" android:layout_alignTop="@id/ad_image_small" android:layout_alignBottom="@id/ad_image_small" android:layout_width="fill_parent" android:layout_height="wrap_content" android:adjustViewBounds="true" android:visibility="visible" /> I can't see what i'm doing wrong. Thanks in advance!

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  • Google App Engine ClassNotPersistenceCapableException

    - by Frank
    I have the following class : import javax.jdo.annotations.IdGeneratorStrategy; import javax.jdo.annotations.IdentityType; import javax.jdo.annotations.PersistenceCapable; import javax.jdo.annotations.Persistent; import javax.jdo.annotations.PrimaryKey; import com.google.appengine.api.datastore.*; @PersistenceCapable(identityType=IdentityType.APPLICATION) public class PayPal_Message { @PrimaryKey @Persistent(valueStrategy=IdGeneratorStrategy.IDENTITY) private Long id; @Persistent private Text content; @Persistent private String time; public PayPal_Message(Text content,String time) { this.content=content; this.time=time; } public Long getId() { return id; } public Text getContent() { return content; } public String getTime() { return time; } public void setContent(Text content) { this.content=content; } public void setTime(String time) { this.time=time; } } It used to be in a package, and works fine, now I put all classes in the default package, which caused me this error : org.datanucleus.jdo.exceptions.ClassNotPersistenceCapableException: The class "The class "PayPal_Message" is not persistable. This means that it either hasnt been enhanced, or that the enhanced version of the file is not in the CLASSPATH (or is hidden by an unenhanced version), or the Meta-Data/annotations for the class are not found." is not persistable. This means that it either hasnt been enhanced, or that the enhanced version of the file is not in the CLASSPATH (or is hidden by an unenhanced version), or the Meta-Data for the class is not found. NestedThrowables: org.datanucleus.exceptions.ClassNotPersistableException: The class "PayPal_Message" is not persistable. This means that it either hasnt been enhanced, or that the enhanced version of the file is not in the CLASSPATH (or is hidden by an unenhanced version), or the Meta-Data/annotations for the class are not found. What should I do to fix it ?

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  • Flex/Flash 4 datagrid literally displays XML

    - by Setori
    Problem: Flex/Flash4 client (built with FlashBuilder4) displays the xml sent from the server exactly as is - the datagrid keeps the format of the xml. I need the datagrid to parse the input and place the data in the correct rows and columns of the datagrid. flow: click on a date in the tree and it makes a server request for batch information in xml form. Using a CallResponder I then update the datagrid's dataProvider. [code] <fx:Script> <![CDATA[ import mx.controls.Alert; [Bindable]public var selectedTreeNode:XML; public function taskTreeChanged(event:Event):void { selectedTreeNode=Tree(event.target).selectedItem as XML; var searchHubId:String = selectedTreeNode.@hub; var searchDate:String = selectedTreeNode.@lbl; if((searchHubId == "") || (searchDate == "")){ return; } findShipmentBatches(searchDate,searchHubId); } protected function findShipmentBatches(searchDate:String, searchHubId:String):void{ findShipmentBatchesResult.token = actWs.findShipmentBatches(searchDate, searchHubId); } protected function updateBatchDataGridDP():void{ task_list_dg.dataProvider = findShipmentBatchesResult.lastResult; } ]]> </fx:Script> <fx:Declarations> <actws:ActWs id="actWs" fault="Alert.show(event.fault.faultString + '\n' + event.fault.faultDetail)" showBusyCursor="true"/> <s:CallResponder id="findShipmentBatchesResult" result="updateBatchDataGridDP()"/> </fx:Declarations> <mx:AdvancedDataGrid id="task_list_dg" width="100%" height="95%" paddingLeft="0" paddingTop="0" paddingBottom="0"> <mx:columns> <mx:AdvancedDataGridColumn headerText="Receiving date" dataField="rd"/> <mx:AdvancedDataGridColumn headerText="Msg type" dataField="mt"/> <mx:AdvancedDataGridColumn headerText="SSD" dataField="ssd"/> <mx:AdvancedDataGridColumn headerText="Shipping site" dataField="sss"/> <mx:AdvancedDataGridColumn headerText="File name" dataField="fn"/> <mx:AdvancedDataGridColumn headerText="Batch number" dataField="bn"/> </mx:columns> </mx:AdvancedDataGrid> [/code] I cannot upload a pic, but this is the xml: [code] 2010-04-23 16:35:51.0 PRESHIP 2010-02-15 00:00:00.0 100000009 DF-Ocean-PRESHIPSUM-Quanta-PACT-EMEA-Scheduled Ship Date 20100215.csv 10053 [/code] and the xml is pretty much displayed exactly as is in the datagrid columns... I would appreciate your assistance.

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  • log4j vs. System.out.println - logger advantages?

    - by wishi_
    Hi! I'm newly using log4j in a project. A fellow programmer told me that using System.out.println is considered bas style and that log4j is something like standard for logging matters nowadays. We do lots of JUnit testing - System.out stuff turns out to be harder to test. Therefore I began utilizing log4j for a Console controller class, that's just handling commandline parameters. // some logger config org.apache.log4j.BasicConfigurator.configure(); Logger logger = LoggerFactory.getLogger(Console.class); Category cat = Category.getRoot(); Seems to work: logger.debug("String"); Produces: 1 [main] DEBUG project.prototype.controller.Console - String I got two questions regarding this: From my basic understanding using this logger should provide me comfortable options to write a logfile with timestamps - instead of spamming the console - if debug mode is enabled at the logger? Why is System.out.println harder to test? I searched stackoverflow and found a testing recipe. So I wonder what kind of advantage I really get by using log4j.

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  • Best way to fetch data from a single database table with multiple threads?

    - by Ravi Bhatt
    Hi, we have a system where we collect data every second on user activity on multiple web sites. we dump that data into a database X (say MS SQL Server). we now need to fetch data from this single table from daatbase X and insert into database Y (say mySql). we want to fetch time based data from database X through multiple threads so that we fetch as fast as we can. Once fetched and stored in database Y, we will delete data from database X. Are there any best practices on this sort of design? any specific things to take care on table design like sharing or something? Are there any other things that we need to take care to make sure we fetch it as fast as we can from threads running on multiple machines? Thanks in advance! Ravi

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  • How to avoid SQLiteException locking errors

    - by TheArchedOne
    I'm developing an android app. It has multiple threads reading from and writing to the android SQLite db. I am receiving the following error: SQLiteException: error code 5: database is locked I understand the SQLite locks the entire db on inserting/updating, but these errors only seems to happen when inserting/updating while I'm running a select query. The select query returns a cursor which is being left open quite a wile (a few seconds some times) while I iterate over it. If the select query is not running, I never get the locks. I'm surprised that the select could be locking the db.... is this possible, or is something else going on? What's the best way to avoid such locks? Thanks TAO

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  • MySQLNonTransientConnectionException in jdbc program at run time

    - by Sunil Kumar Sahoo
    Hi I have created jdbc mysql connection. my program works fine for simple execution of query. But if i run the same program for more than 10 hour and execute query then i receives the following mysql exception. I have not used close() method anywhere. i created database connection and opened it forever and always execute query. there is no where that i explicitly mentioned timeout for connection. i am unable to identify the problem com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Connection.close() has already been called. Invalid operation in this state. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after statement closed. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) sample code for database connection: String driver = PropertyReader.getDriver(); String url = dbURLPath; Class.forName(driver); connectToServerDB = DriverManager.getConnection(url); connectToServerDB.setAutoCommit(false);

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  • migrating an embedded jetty server from v6 to v7

    - by Ceilingfish
    Hi chaps, I have an embedded servlet which I use in unit tests, looks like this: public class UnitTestWebservices extends AbstractHandler { private Server server; private Map<Route,String> data = new HashMap<Route,String>(); public UnitTestWebservices(int port) throws Exception { server = new Server(port); server.setHandler(this); server.start(); } public void handle(String url, HttpServletRequest request, HttpServletResponse response, int arg3) throws IOException, ServletException { final Route route = Route.valueOf(request.getMethod(), url); final String content = data.get(route); if(content != null) { final ServletOutputStream stream = response.getOutputStream(); stream.print(content); stream.flush(); stream.close(); } else { response.sendError(HttpServletResponse.SC_NOT_FOUND); } } .... } That's written using version 6.1.24 of Jetty. I tried switching over to use Jetty 7.1.1.v20100517, and updated that code to this: public class UnitTestWebservices extends AbstractHandler { private Server server; private Map<Route,String> data = new HashMap<Route,String>(); public UnitTestWebservices(int port) throws Exception { server = new Server(port); server.setHandler(this); server.start(); } public void handle(String url, Request request, HttpServletRequest servletRequest, HttpServletResponse response) throws IOException, ServletException { final Route route = Route.valueOf(request.getMethod(), url); final String content = data.get(route); request.setHandled(true); response.setContentType("application/json"); if(content != null) { response.setStatus(HttpServletResponse.SC_OK); final Writer stream = response.getWriter(); stream.append(content); } else { response.sendError(HttpServletResponse.SC_NOT_FOUND); } } } But whenever I tried to access make a request to the server it would hang indefinitely. Has anyone experienced anything similar?. It also printed this into the log: log4j:WARN No appenders could be found for logger (org.eclipse.jetty.util.log). log4j:WARN Please initialize the log4j system properly. org.eclipse.jetty.server.Server@670655dd STOPPED +-UnitTestWebservices@50ef5502 started

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  • How to use a Spring config file in a Maven dependency

    - by javamonkey79
    In dependency A I have the following: <beans> <bean id="simplePersonBase" class="com.paml.test.SimplePerson" abstract="true"> <property name="firstName" value="Joe" /> <property name="lastName" value="Smith" /> </bean> </beans> And then in project B, I add A as a dependency and have the following config: <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> <bean id="simplePersonAddress01" parent="simplePersonBase"> <property name="firstName" value="BillyBob" /> <property name="address" value="1060 W. Addison St" /> <property name="city" value="Chicago" /> <property name="state" value="IL" /> <property name="zip" value="60613" /> </bean> </beans> When I use ClassPathXmlApplicationContext like so: BeanFactory beanFactory = new ClassPathXmlApplicationContext( new String[] { "./*.xml" } ); SimplePerson person = (SimplePerson)beanFactory.getBean( "simplePersonAddress01" ); System.out.println( person.getFirstName() ); Spring complains as it can not resolve the parent xml. Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'simplePersonBase' is defined I am sure there is a way to do this, however, I have not found it. Does anyone know how?

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