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• Exception in thread "main" java.lang.NoSuchMethodError: sun/misc/Unsafe.allocateDBBMemory

  - by user2524935

  Has anyone been able to compile JRuby on a s390x Linux system? I am trying to use LogStash, which apparently requires JRuby, however SLES 11 has no JRuby repo included. jar ant produces the following. compile-annotation-binder: [javac] Compiling 18 source files to /home/user7/jruby-1.7.4/build/classes/jruby [javac] warning: [options] bootstrap class path not set in conjunction with -source 1.6 [javac] Note: /home/user7/jruby-1.7.4/src/org/jruby/util/CodegenUtils.java uses unchecked or unsafe operations. [javac] Note: Recompile with -Xlint:unchecked for details. [javac] 1 warning compile-jruby: [javac] Compiling 1395 source files to /home/user7/jruby-1.7.4/build/classes/jruby [javac] Exception in thread "main" java.lang.NoSuchMethodError: sun/misc/Unsafe.allocateDBBMemory(J)J [javac] at java.nio.DirectByteBuffer.(DirectByteBuffer.java:127) [javac] at java.nio.ByteBuffer.allocateDirect(ByteBuffer.java:306) [javac] at sun.misc.Perf.createLong(Native Method) [javac] at sun.misc.PerfCounter.(PerfCounter.java:77) [javac] at sun.misc.PerfCounter.newPerfCounter(PerfCounter.java:83) [javac] at sun.misc.PerfCounter$CoreCounters.(PerfCounter.java:140) [javac] at java.lang.J9VMInternals.initializeImpl(Native Method) [javac] at java.lang.J9VMInternals.initialize(J9VMInternals.java:236) [javac] at sun.misc.PerfCounter.getZipFileOpenTime(PerfCounter.java:194) [javac] at java.util.zip.ZipFile.(ZipFile.java:230) [javac] at java.util.zip.ZipFile.(ZipFile.java:159) [javac] at java.util.jar.JarFile.(JarFile.java:167) [javac] at java.util.jar.JarFile.(JarFile.java:104) [javac] at sun.misc.URLClassPath$JarLoader.getJarFile(URLClassPath.java:958) [javac] at sun.misc.URLClassPath$JarLoader.access$700(URLClassPath.java:826) [javac] at sun.misc.URLClassPath$JarLoader$1.run(URLClassPath.java:909) [javac] at sun.misc.URLClassPath$JarLoader$1.run(URLClassPath.java:899) [javac] at java.security.AccessController.doPrivileged(AccessController.java:280) [javac] at sun.misc.URLClassPath$JarLoader.ensureOpen(URLClassPath.java:898) [javac] at sun.misc.URLClassPath$JarLoader.(URLClassPath.java:871) [javac] at sun.misc.URLClassPath$3.rtJarLoader(URLClassPath.java:596) [javac] at sun.misc.URLClassPath$3.run(URLClassPath.java:546) [javac] at sun.misc.URLClassPath$3.run(URLClassPath.java:536) [javac] at java.security.AccessController.doPrivileged(AccessController.java:280) [javac] at sun.misc.URLClassPath.getLoader(URLClassPath.java:535) [javac] at sun.misc.URLClassPath.getLoader(URLClassPath.java:498) [javac] at sun.misc.URLClassPath.getResource(URLClassPath.java:324) [javac] at java.net.URLClassLoader$ClassFinder.run(URLClassLoader.java:1157) [javac] at java.security.AccessController.doPrivileged(AccessController.java:314) [javac] at java.net.URLClassLoader.findClass(URLClassLoader.java:594) [javac] at java.lang.ClassLoader.loadClassHelper(ClassLoader.java:743) [javac] at java.lang.ClassLoader.loadClass(ClassLoader.java:711) [javac] at java.lang.ClassLoader.loadClassHelper(ClassLoader.java:735) [javac] at java.lang.ClassLoader.loadClass(ClassLoader.java:711) [javac] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:325) [javac] at java.lang.ClassLoader.loadClass(ClassLoader.java:690) [javac] at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:494) BUILD FAILED /home/user7/jruby-1.7.4/build.xml:636: The following error occurred while executing this line: /home/user7/jruby-1.7.4/build.xml:289: Compile failed; see the compiler error output for details. Total time: 1 minute 37 seconds Line 636 of build.xml <target name="jar" depends="init" description="Create the jruby.jar file. Used during dev."> -> <antcall target="jar-jruby" inheritall="true"/> </target> Line 289 of build.xml <javac destdir="${jruby.classes.dir}" fork="true" debug="true" source="${javac.version}" target="${javac.version}" -> deprecation="true" encoding="UTF-8" includeantruntime="true" memorymaximumsize="${jruby.compile.memory}"> <classpath refid="jruby.execute.classpath"/> <src path="${src.dir}"/> <exclude name="org/jruby/runtime/Constants.java"/> java -version java version "1.7.0" Java(TM) SE Runtime Environment (build pxz6470sr4fp1-20130325_01(SR4 FP1)) IBM J9 VM (build 2.6, JRE 1.7.0 Linux s390x-64 Compressed References 20130306_140761 (JIT enabled, AOT enabled) J9VM - R26_Java726_SR4_FP1_20130306_1011_B140761 JIT - r11.b03_20130131_32403ifx1 GC - R26_Java726_SR4_FP1_20130306_1011_B140761_CMPRSS J9CL - 20130306_140761) JCL - 20130315_01 based on Oracle 7u13-b08 ant -version Apache Ant version 1.7.1

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• Why isn't ValidateRequest="true" enough for XSS prevention?

  - by Microserf

  In the notes for Step 1 in the "How To: Prevent Cross-Site Scripting in ASP.NET" it is stated that you should "not rely on ASP.NET request validation. Treat it as an extra precautionary measure in addition to your own input validation." Why isn't it enough?

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• Tool to Convert table base design to table less design

  - by brz dot net

  What is the best optimized way to convert table base design to table less design? the layout should be cross browser compatible and SEO Friendly. Is there any tool/editor which converts existing table base design to table less design? Is there any option in dreamweaver to convert the design in tableless?

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• Spidermonkey pointing to a NSPR/DIST directory, HELP!

  - by giantKamote

  Hey guys, I've been trying to cross-compile Spidermonkey and I am stuck with the problem wherein prtypes.h(NSPR) is unrecognizable. I alread triedy modifying Makefile.ref/config.mk/jsconfig.mk to point to a desired NSPR/DIS directory. I must have missed some basic steps because it still won't make things work. Do you have any ideas on how to properly modify the makefiles to point my spidermonkey to the right NSPR libraries? Thanks!

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• Listing the processes running on one's computer in Python

  - by Moiz

  Is there a cross-platform way to list the processes running on one's computer through a python script? For Unix based system "ps -ef" works, but I am new to Python and don't know a way to write something that would work across any platform. Thanks!

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• Spring / Hibernate / JUnit - No Hibernate Session bound to Thread

  - by Marty Pitt

  Hi I'm trying to access the current hibernate session in a test case, and getting the following error: org.hibernate.HibernateException: No Hibernate Session bound to thread, and configuration does not allow creation of non-transactional one here at org.springframework.orm.hibernate3.SpringSessionContext.currentSession(SpringSessionContext.java:63) at org.hibernate.impl.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.java:574) I've clearly missed some sort of setup, but not sure what. Any help would be greatly appreciated. This is my first crack at Hibernate / Spring etc, and the learning curve is certainly steep! Regards Marty Code follows: The offending class: public class DbUnitUtil extends BaseDALTest { @Test public void exportDtd() throws Exception { Session session = sessionFactory.getCurrentSession(); session.beginTransaction(); Connection hsqldbConnection = session.connection(); IDatabaseConnection connection = new DatabaseConnection(hsqldbConnection); // write DTD file FlatDtdDataSet.write(connection.createDataSet(), new FileOutputStream("test.dtd")); } } Base class: @RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration(locations={"classpath:applicationContext.xml"}) public class BaseDALTest extends AbstractJUnit4SpringContextTests { public BaseDALTest() { super(); } @Resource protected SessionFactory sessionFactory; } applicationContext.xml: <?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="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClassName"> <value>org.hsqldb.jdbcDriver</value> </property> <property name="url"> <value>jdbc:hsqldb:mem:sample</value> </property> <property name="username"> <value>sa</value> </property> <property name="password"> <value></value> </property> </bean> <bean id="sessionFactory" class="com.foo.spring.AutoAnnotationSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <property name="entityPackages"> <list> <value>com.sample.model</value> </list> </property> <property name="schemaUpdate"> <value>true</value> </property> <property name="hibernateProperties"> <props> <prop key="hibernate.dialect">org.hibernate.dialect.HSQLDialect </prop> <prop key="hibernate.show_sql">true</prop> </props> </property> </bean> </beans>

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• Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/xmlbeans/XmlException

  - by Dheeraj kumar

  I have to read xls file in java.I used poi-3.6 to read xls file in Eclipse.But i m getting this ERROR"Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/xmlbeans/XmlException at ReadExcel2.main(ReadExcel2.java:38)". I have added following jars 1)poi-3.6-20091214.jar 2)poi-contrib-3.6-20091214.jar 3)poi-examples-3.6-20091214.jar 4)poi-ooxml-3.6-20091214.jar 5)poi-ooxml-schemas-3.6-20091214.jar 6)poi-scratchpad-3.6-20091214.jar Below is the code which i m using: import org.apache.poi.ss.usermodel.Workbook; import org.apache.poi.ss.usermodel.Sheet; import org.apache.poi.ss.usermodel.Row; import org.apache.poi.ss.usermodel.Cell; import org.apache.poi.xssf.usermodel.XSSFWorkbook; import org.apache.poi.xssf.usermodel.XSSFCell; import org.apache.poi.xssf.usermodel.XSSFRow; import java.io.FileInputStream; import java.io.IOException; import java.util.Iterator; import java.util.List; import java.util.ArrayList; public class ReadExcel { public static void main(String[] args) throws Exception { // // An excel file name. You can create a file name with a full path // information. // String filename = "C:\\myExcel.xl"; // // Create an ArrayList to store the data read from excel sheet. // List sheetData = new ArrayList(); FileInputStream fis = null; try { // // Create a FileInputStream that will be use to read the excel file. // fis = new FileInputStream(filename); // // Create an excel workbook from the file system. // // HSSFWorkbook workbook = new HSSFWorkbook(fis); Workbook workbook = new XSSFWorkbook(fis); // // Get the first sheet on the workbook. // Sheet sheet = workbook.getSheetAt(0); // // When we have a sheet object in hand we can iterator on each // sheet's rows and on each row's cells. We store the data read // on an ArrayList so that we can printed the content of the excel // to the console. // Iterator rows = sheet.rowIterator(); while (rows.hasNext()) { Row row = (XSSFRow) rows.next(); Iterator cells = row.cellIterator(); List data = new ArrayList(); while (cells.hasNext()) { Cell cell = (XSSFCell) cells.next(); data.add(cell); } sheetData.add(data); } } catch (IOException e) { e.printStackTrace(); } finally { if (fis != null) { fis.close(); } } showExelData(sheetData); } private static void showExelData(List sheetData) { // // Iterates the data and print it out to the console. // for (int i = 0; i < sheetData.size(); i++) { List list = (List) sheetData.get(i); for (int j = 0; j < list.size(); j++) { Cell cell = (XSSFCell) list.get(j); System.out.print(cell.getRichStringCellValue().getString()); if (j < list.size() - 1) { System.out.print(", "); } } System.out.println(""); } } } Please help. thanks in anticipation, Regards, Dheeraj!

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• Cossfading possible with MVVM and datatemplated ViewModels ?

  - by msfanboy

  Hello, I know and have read some blogs about animating/fading in and out of viewmodels. But is it somehow possible to make 2 ViewModels cross fading? Or will that be a threading problem and I would have to use a vendor transition control for that?

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• Winforms for Mono on Mac, Linux and PC (Redux)

  - by yar

  (I asked this question in another way, and got some interesting responses but I'm not too convinced.) Is Mono's GtkSharp truly cross-platform? It seems to be Gnome based... how can that work with PC and Mac? Can someone give me examples of a working Mac/PC/Linux app that is written with a single codebase in Microsoft .Net?

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• Which GUI toolkit would you use for a touchscreen interface?

  - by Drealmer

  The only experience I have so far with a touchscreen interface was one where everything was custom drawn, and I get the feeling it's not the most efficient way of doing it (even the most basic layout change is hell to make). I know plenty of GUI toolkits intended at keyboard & mouse interfaces, but can you advise something suited for touchscreens? Target platform is Windows, but cross-platform would be nice.

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• Game engine with python scripting?

  - by Kayle

  Looking to put together a 3D side-scrolling action platformer. Since this is my first time trying to put together a non-simple adventure game, I'm at a loss for which engine to consider. I would prefer one that supports scripting in python, since that's my primary language. Without tight controls, the game will suck... so speed is a priority. Cross-platform is also important to me. Any suggestions?

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• How to target Safari for Mac only?

  - by Moak

  Hi I've cross browser fixed a site on all thinkable PC browsers, including Safari. Now my smart ass designer sent me a screen shot of the whole layout collapsing on mac. I have an idea how to solve it (reduce the margin on an element by a few pix), but i don't know how to target Safari only, preferably Safari mac only. What's the best way to do this?

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• Can a Mono application be deployed using ClickOnce?

  - by Jephir

  I am using Mono to write a cross-platform application. On Windows, is it possible to deploy this application using ClickOnce?

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• AJAX, Subdomains and the 200 OK response.

  - by b. e. hollenbeck

  A non-hypothetical but abstracted situation: I have a domain www.foo.com, from which I'm making an AJAX POST to beta.foo.com. Examining the XHR object, I see a response header of 200 OK, but no response text - I even get a response 12B long, which is the exact response (a 12-character string) that I'm expecting - but the response text is blank. If this is a cross-domain issue, why am I getting 200 OK, and better yet - why am I seeing the PHP functions fire on the beta.foo.com side - yet getting no response?

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• ASP.NET MVC 2 JSONP with MVC Futures

  - by mighty_man

  I´m using mvc futures 2 with WebApiEnabled for XML and JSON support. But due to cross domain issues with jQuery $.ajax I´m lookin in to JSONP. Is there a simple way to extend futures rest function for JSONP or should I do something else. Do anyone have some hints on this subject ?

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• Extract external javascript query string/anchor value: file.js#foo=bar

  - by jfroom

  http://mycloud.net/js/file.js#foo=bar I'm trying to load a cross domain javascript file, and want to pass a variable along on the query string. I have seen the above '#' method used, but am unsure of how to extract the 'foo' value from within the file.js. Any clues how to handle this without the aid of server side help? Thanks.

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• How can I integrate Java with .Net?

  - by Luke

  I have one SDK that is available in Java and another SDK that is available for .Net and would like to write a single application that interfaces with both of them. I imagine I will need to use a cross platform communication framework that can support named pipes (or other in memory communication), what is the best choice? After some more research I found Hessian -- does anyone know anything about the maturity of this project?

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• Any C/C++ to non-native bytecode compiler/interpreters?

  - by Matt

  As the title indicates, are there any C/C++ bytecode compilers/interpreters? I'm writing an application in an interpreted language that depends on certain libraries that are fully cross-compilable (there are no special flags to indicate code changes during compilation for a certain platform) but are written in C and C++. Rather than shipping n-platform-specific-libs with each platform, it would be nice to ship one set of libs which are interpreted by one platform specific interpreter. Possible and/or available?

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• Getting the DLL name from a mingw32-compiled lib/a file

  - by epsy

  Hi, I am changing our build system in order to handle cross-compiling and packaging. It is a common thing to ship dependencies' DLLs but CMake's FindXXX modules(./configure checks) don't provide the path to these DLLs but only to .a files. I quickly looked inside the .a libs and they all seem to contain the DLL's name. What would be a proper way of extracting them from the .a file on a Linux build machine?

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• Best Practice: User generated HTML cleaning

  - by Martin

  I'm coding a WYSIWYG editor width designMode="on" on a iframe. The editor works fine and i store the code as is in the database. Before outputing the html i need to "clean" with php on the server-side to avoid cross-site-scripting and other scary things. Is there some sort of best practice on how to do this? What tags can be dangerous? UPDATE: Typo fixed, it's What You See Is What You Get. Nothing new :)

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• Catch all DOM events on a page (without Firebug et. al.)

  - by Morten Bergfall

  How would I go about creating a cross-browser script, that would intercept all events firing on a page/browser window/DOM-tree (regardless of browser)? What I'm hoping to accomplish is basically to get a better understanding of the different handling of events in different browsers; I know the basic theory, but need to see to believe...

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• Drag'n'Drop and Paste detection with contentEditable or designMode enabled

  - by Fionn

  Does anyone of you know a cross browser working way to detect paste or drag'n'drop inserts into an editable html document (with designMode or contentEditable enabled). Detecting paste works as long as the user uses the Ctrl-V shortcut as it generated key events, but if you use the browsers Edit-Paste no events are generated it seems.

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• Differently styled HTML elements in browser's default css is the only factor for the different looks

  - by metal-gear-solid

  Why same website looks different in different browser. Differently styled HTML elements in all browser's default css is the only factor for the different looks in different browser of website? Is there any other factors related to cross browser compatibility?

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• Can I use boost library for crossplatform application executing?

  - by Heisenberg

  Is there any WinAPI WinExec analog in boost (c++) libraries? I need to run executable from my program, and pass parameters to it. Should I use any other cross-platform libraries for this, or handle myself what OS my program is compiled for?

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• Is there a C++ graphing library?

  - by thyrgle

  Is there a C++ graphing library that can display visual graphs (such as hyperbolas and parabolas and linear equations) based on the equation it is given and that is cross platform? Or am I just asking for too much...

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