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  • java.lang.ClassNotFoundException: com.mysql.jdbc.Driver When run jar file

    - by user1024858
    Hi all, Connection conn = null; String url = "jdbc:mysql://localhost:3306/"; String dbName = "test"; String driver = "com.mysql.jdbc.Driver"; String userName = "root"; String password = "admin"; try { Class.forName(driver).newInstance(); conn = DriverManager.getConnection(url+dbName,userName,password); System.out.println("Connected to the database"); conn.close(); System.out.println("Disconnected from database"); } catch (Exception e) { e.printStackTrace();} I run in eclipse it's ok, but i built to jar file and run on command line java -jar Test.jar i get this error: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver at java.net.URLClassLoader$1.run(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) Please help me how to fix it. Thanks!!!

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  • PHP and Java interoperablity

    - by Jack
    I am working on windows using tomcat 6 and PHP/Java Bridge. I know how to access a Java file from PHP but how do we do it the other way i.e accessing PHP from Java <?php require_once("java\Java.inc"); $systemInfo = new Java("java.lang.System"); print "Total seconds since January 1, 1970: ".$systemInfo->currentTimeMillis(); ?> Also how do I access Java classes that are created by me. Do I write a CLASSPATH env variable or change the php.ini config file?

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  • java version 1.6 applet requistes

    - by gautam
    Hi, I upgraded my java version 1.5 to 1.6. My applet is not working what are prequesties ? i have changed classid and MIME type to 1.6. Its giving exception: load: class com.timer.AppletGenerator.class not found. java.lang.ClassNotFoundException: com.timer.AppletGenerator.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:http://localhost:8080/Perfmonitoringgui-000.004.000/com/timer/AppletGenerator/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: com.timer.AppletGenerator.class Thanks

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  • Can we build websites in Java

    - by Mirage
    IF some says to me to build webisite in java. What does that mean. That means building in core java, java servlets , jsp , java beans , j2ee or what. What thing i need to learn if some tells me to make webiste in java. Just like there are ready made login scripts in php , are those available in java as well thanks

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  • regarding java programming language

    - by giri
    Hi I am java professional since last one year. I am pretty familier with core java and JSP and SERVLET technologies.Now I am hired by a telcom company where java is not used.The question I like to ask here is how to keep java enviornment around me so that I should not be unfamiler with java. As I come from company I get much time to work with java. I like to know any real time projects in java available so that I can work with java also. Please let me know... Thanks in advance

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  • Eclipse NullPointerException at getFontList

    - by Jan Fabry
    Eclipse doesn't start anymore. I get a dialog box that points me to a log file with the following entry: !SESSION 2009-12-08 08:49:16.263 ----------------------------------------------- eclipse.buildId=M20090917-0800 java.version=1.6.0_17 java.vendor=Apple Inc. BootLoader constants: OS=macosx, ARCH=x86_64, WS=cocoa, NL=en_US Framework arguments: -product org.eclipse.epp.package.php.product -keyring /Users/cheezy/.eclipse_keyring -showlocation Command-line arguments: -os macosx -ws cocoa -arch x86_64 -product org.eclipse.epp.package.php.product -keyring /Users/cheezy/.eclipse_keyring -showlocation !ENTRY org.eclipse.osgi 4 0 2009-12-08 08:49:19.993 !MESSAGE Application error !STACK 1 java.lang.NullPointerException at org.eclipse.swt.graphics.Device.getFontList(Device.java:369) at org.eclipse.jface.resource.FontRegistry.filterData(FontRegistry.java:465) at org.eclipse.jface.resource.FontRegistry.createFont(FontRegistry.java:499) at org.eclipse.jface.resource.FontRegistry.defaultFontRecord(FontRegistry.java:563) at org.eclipse.jface.resource.FontRegistry.getFontRecord(FontRegistry.java:673) at org.eclipse.jface.resource.FontRegistry.get(FontRegistry.java:613) at org.eclipse.jface.resource.JFaceResources.getDialogFont(JFaceResources.java:273) at org.eclipse.jface.dialogs.Dialog.initializeDialogUnits(Dialog.java:925) at org.eclipse.jface.dialogs.TitleAreaDialog.createContents(TitleAreaDialog.java:131) at org.eclipse.jface.window.Window.create(Window.java:431) at org.eclipse.jface.dialogs.Dialog.create(Dialog.java:1089) at org.eclipse.jface.window.Window.open(Window.java:790) at org.eclipse.ui.internal.ide.ChooseWorkspaceDialog.prompt(ChooseWorkspaceDialog.java:91) at org.eclipse.ui.internal.ide.application.IDEApplication.promptForWorkspace(IDEApplication.java:275) at org.eclipse.ui.internal.ide.application.IDEApplication.checkInstanceLocation(IDEApplication.java:223) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:103) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:194) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:368) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:559) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514) at org.eclipse.equinox.launcher.Main.run(Main.java:1311) I did clean up my font list in Font Book by disabling duplicate fonts. I also upgraded to Mac OS X 10.6.2.

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  • installing jdk1.7.0 on Ubuntu 11.04 machine

    - by Yogesh
    I am facing a problem while trying to install Java 7 on Ubuntu. The following are the steps that I performed for installing: I installed the setup file from the link given below: wget http://download.oracle.com/otn-pub/java/jdk/7u1-b08/jdk-7u1-linux-x64.tar.gz I have a file: jdk-7u1-linux-x64.tar.gz I Untared it: tar -xvf jdk-7u1-linux-x64.tar.gz sudo mv ./jdk1.7.0_01 /usr/lib/jvm/jdk1.7.0_01 sudo update-alternatives –config java Here it gave me the following output: There is only one alternative in link group java: /usr/lib/jvm/java-6-sun/jre/bin/java Nothing to configure. sudo update-alternatives --install /usr/bin/java java /usr/lib/jvm/jdk1.7.0_01/jre/bin/java 1(I entered 1 here.) sudo update-alternatives --config java java -version. It showed the following output java version "1.6.0_26" Java(TM) SE Runtime Environment (build 1.6.0_26-b03) Java HotSpot(TM) 64-Bit Server VM (build 20.1-b02, mixed mode) I am not sure if jdk1.7.0 is installed as its showing the version as 1.6.0_26.

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  • preverification error in netbeans and eclipse while including j2ssh maverick

    - by user568651
    problem-- Preverification errors: Error preverifying class com.maverick.ssh.components.ComponentFactory java/lang/NoClassDefFoundError: java/lang/Cloneable j2ssh Unknown Java Problem this error comes while j2ssh is added as a library in my application. console-- Uncaught exception: java.lang.NoClassDefFoundError: com/maverick/ssh/LicenseManager - mobilessh.MobileSSH.run(), bci=2 - java.lang.Thread.run(), bci=11 this error shows both in eclipse and netbeans ide 6.9.1 jdk 1.6 installed.. wtk 3.0 and 2.5.2.

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  • ASUS EAH5450 Graphics Card (ATI Radeon HD5450 - 1 GB DDR3) on Windows 2003? Anybody got it to work?

    - by JJarava
    Hi all! I've just bought an ASUS EAH5450 Graphics Card (ATI Radeon HD5450, 1 GB DDR3) for my main system, but I haven't been able to make it work under Windows 2003 (my OS in that system). When I plugged the card, I got a couple of "installing drivers" prompt for things such as "ATI High Definition Audio Device" that got themselves sorted out of the Internet, and then a "Standard VGA Graphics Adapter". The CD that came with the card installs something called "ATI Catalyst Install Manager" and .net 2.0, but no drivers. I've downloaded the latest (WinXP 32bits) drivers from ATI, and the experience is the same: I don't get any drivers installed. My Motherboard is an ASUS A8N-SLI with nVidia nForce 4 chipset (for an Athlon 64X2, somewhat old), but my previous card was an ATi Radeon X700, so it's been working with ATI cards before. On POST, during boot I see a "Display Card" Device (Vendor ID 1002-68F9-0300) and a "Multimedia Device" (1002-AA68-0403), and when viewing the properties of the "Standard VGA", they match the device ID. Any hints? I'd really hate having to get rid of the card, and I'm sure it's not that strange what I'm trying to do...

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  • 3 monitors + a TV on a single card with Eyefinity?

    - by Paul Accisano
    Greetings all, Right now I have a fairly standard video card with 2 DVI ports, one powering my single monitor and another powering my HDTV (with a DVI-to-HDMI cable), which are in separate rooms. I never need to have my monitor and TV active at the same time. I'm looking into a possible computer upgrade. I'd like to know if the following situation is possible. I want three monitors on my desk powered by a single card, which I hear these new Eyefinity cards are capable of. But, I also want my TV hooked up. At any given time, I would want either my three monitors active or my TV active, never both at once. So it seems to me it might be possible to do this all a single 3-port card with a splitter of some kind. Is this possible? What hardware would I need? Thanks!

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  • Does upgrading RAM causes increase in Graphic card's share?

    - by A.S.
    I have asked this question on Ask Ubuntu, and I was suggested to Upgrade RAM from most voted answers. But I got a point about my graphics card. Since, I can upgrade RAM and not graphics card, Does upgrading RAM also cause graphics memory to increase. To clear the point: My specs are given below: Laptop : Lenovo 3000 Y410. (bought in 2008 October) RAM: 1 GB (DDR2) External Graphics (Dedicated): N/A Internal Graphics (Shared): 256 MB Graphics Chipset: Intel GMA X3100 My Question is: If I increase my RAM to 3 GB, will it increase graphics cards share of the Memory. In other word, If graphics card shares 256 MB in 1GB RAM, will it share more, when I upgrade the RAM into 2GB or more ? Authentic resource link will be much appreciated I have recently known that, My chipset GMA X3100 can address 384 MB of RAM. So the question.

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  • Trying to get a PC to boot off a bootable SD card that is inside an USB attached Android device.

    - by Cyril
    First, I'd like to make myself look less a madman than I may have appeared to be. I wanted to have a bootable USB stick with me at all times, but it's less convenient because it's an extra object and it's easier to lose, forget etc. Then I thought, I have an Android phone, and it has a micro SD in it; perfect. Not all PC's can boot off a card reader, but the phone itself is a card reader when attached as a disk drive. Or at least so I thought. Turns out that my netbook BIOS (tested on Asus eeePC) refuses to see it as an external harddrive; it only recognizes it as a generic USB device and doesn't offer an option to boot from it. The device has a name "Android phone" or smth, so it seems to me that it doesn't work as a "pure" card reader, and instead still manifests itself as a phone. Can it be somehow overridden?

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  • Motherboard warning lights when plugging in a display port cord to graphics card?

    - by rllr
    Earlier today, my computer spontaneously shut itself off and refused to turn back on. I tested my PSU and it's operating fine. I unplugged everything and let it sit for a while and it started to make a high pitched coil whine/hiss. When I came back an hour later and plugged in only the power cord, it turned on without any issues. After some troubleshooting, I noticed my motherboard (Intel D975XBX2) has a red CPU led and VR led that come on whenever I plug my monitor into my graphics card via display port. DVI does not cause a similar issue. I was running three monitors off the card, so I need both DVI ports and the display port working. Is it likely my graphics card needs to be replaced, or should I be looking elsewhere to resolve this issue?

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  • Is the cooling fan on a 2004 graphics card really necessary?

    - by Andrew
    I have an old GeForce 6600 card in my computer, circa 2004. Recently the fan has started playing up and making loud irritating noises. I've tried oiling it with no luck. This is the second fan I've put on the card, the stock one broke ages ago. Is a card this old really likely to need a cooling fan or can I remove it altogether? It has a decent heatsink on the chip but there's not a lot of airflow in that part of the box. Edit: I should add that I seem to remember most mid range graphics cards at the time I bought that didn't have fans (pretty sure they had heatsinks only), which is why I'm wondering.

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  • How to tell, before buying, if a given graphics card will play Full HD video?

    - by Dominykas Mostauskis
    I am looking for the cheapest video card that would be capable of smooth playback of Full HD (1080p) video on a Full HD screen. An answer by @Mikhail on a related question briefly mentioned that: performance of video playback is largely dependent on the video accelerators present [in the card] Is this true? Could anyone expand on that? Are there any benchmarks or specifications that could be used to tell if a given (low-end) card can play Full HD video smoothly? Benchmarks I encountered are oriented towards computer games, and using them to evaluate video playback performance may be less-than-optimal, I imagine.

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  • Getting output parameter(SYS_REFCURSOR) from Oracle stored procedure in iBATIS 3(by using annotation

    - by yjacket
    I got an example how to call oracle SP in iBATIS 3 without a map file. And now I understand how to call it. But I got another problem that how to get a result from output parameter(Oracle cursor). A part of exception messages is "There is no setter for property named 'rs' in 'class java.lang.Class". Below is my code. Does anyone can help me? Oracle Stored Procedure: CREATE OR REPLACE PROCEDURE getProducts ( rs OUT SYS_REFCURSOR ) IS BEGIN OPEN rs FOR SELECT * FROM Products; END getProducts; Interface: public interface ProductMapper { @Select("call getProducts(#{rs,mode=OUT,jdbcType=CURSOR})") @Options(statementType = StatementType.CALLABLE) List<Product> getProducts(); } DAO: public class ProductDAO { public List<Product> getProducts() { return mapper.getProducts(); // mapper is ProductMapper } } Full Error Message: Exception in thread "main" org.apache.ibatis.exceptions.IbatisException: ### Error querying database. Cause: org.apache.ibatis.reflection.ReflectionException: Could not set property 'rs' of 'class org.apache.ibatis.reflection.MetaObject$NullObject' with value 'oracle.jdbc.driver.OracleResultSetImpl@1a001ff' Cause: org.apache.ibatis.reflection.ReflectionException: There is no setter for property named 'rs' in 'class java.lang.Class' ### The error may involve defaultParameterMap ### The error occurred while setting parameters ### Cause: org.apache.ibatis.reflection.ReflectionException: Could not set property 'rs' of 'class org.apache.ibatis.reflection.MetaObject$NullObject' with value 'oracle.jdbc.driver.OracleResultSetImpl@1a001ff' Cause: org.apache.ibatis.reflection.ReflectionException: There is no setter for property named 'rs' in 'class java.lang.Class' at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:8) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:61) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:53) at org.apache.ibatis.binding.MapperMethod.executeForList(MapperMethod.java:82) at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:63) at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:35) at $Proxy8.getList(Unknown Source) at com.dao.ProductDAO.getList(ProductDAO.java:42) at com.Ibatis3Test.main(Ibatis3Test.java:30) Caused by: org.apache.ibatis.reflection.ReflectionException: Could not set property 'rs' of 'class org.apache.ibatis.reflection.MetaObject$NullObject' with value 'oracle.jdbc.driver.OracleResultSetImpl@1a001ff' Cause: org.apache.ibatis.reflection.ReflectionException: There is no setter for property named 'rs' in 'class java.lang.Class' at org.apache.ibatis.reflection.wrapper.BeanWrapper.setBeanProperty(BeanWrapper.java:154) at org.apache.ibatis.reflection.wrapper.BeanWrapper.set(BeanWrapper.java:36) at org.apache.ibatis.reflection.MetaObject.setValue(MetaObject.java:120) at org.apache.ibatis.executor.resultset.FastResultSetHandler.handleOutputParameters(FastResultSetHandler.java:69) at org.apache.ibatis.executor.statement.CallableStatementHandler.query(CallableStatementHandler.java:44) at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:55) at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:41) at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:94) at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:72) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:59) ... 7 more Caused by: org.apache.ibatis.reflection.ReflectionException: There is no setter for property named 'rs' in 'class java.lang.Class' at org.apache.ibatis.reflection.Reflector.getSetInvoker(Reflector.java:300) at org.apache.ibatis.reflection.MetaClass.getSetInvoker(MetaClass.java:97) at org.apache.ibatis.reflection.wrapper.BeanWrapper.setBeanProperty(BeanWrapper.java:146) ... 16 more

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  • How to get a result from output parameter(SYS_REFCURSOR) of Oracle stored procedure in iBATIS 3(by u

    - by yjacket
    I got an example how to call oracle SP in iBATIS 3 without a map file. And now I understand how to call it. But I got another problem that how to get a result from output parameter(Oracle cursor). A part of exception messages is "There is no setter for property named 'rs' in 'class java.lang.Class". Below is my code. Does anyone can help me? Oracle Stored Procedure: CREATE OR REPLACE PROCEDURE getProducts ( rs OUT SYS_REFCURSOR ) IS BEGIN OPEN rs FOR SELECT * FROM Products; END getProducts; Interface: public interface ProductMapper { @Select("call getProducts(#{rs,mode=OUT,jdbcType=CURSOR})") @Options(statementType = StatementType.CALLABLE) List<Product> getProducts(); } DAO: public class ProductDAO { public List<Product> getProducts() { return mapper.getProducts(); // mapper is ProductMapper } } Full Error Message: Exception in thread "main" org.apache.ibatis.exceptions.IbatisException: ### Error querying database. Cause: org.apache.ibatis.reflection.ReflectionException: Could not set property 'rs' of 'class org.apache.ibatis.reflection.MetaObject$NullObject' with value 'oracle.jdbc.driver.OracleResultSetImpl@1a001ff' Cause: org.apache.ibatis.reflection.ReflectionException: There is no setter for property named 'rs' in 'class java.lang.Class' ### The error may involve defaultParameterMap ### The error occurred while setting parameters ### Cause: org.apache.ibatis.reflection.ReflectionException: Could not set property 'rs' of 'class org.apache.ibatis.reflection.MetaObject$NullObject' with value 'oracle.jdbc.driver.OracleResultSetImpl@1a001ff' Cause: org.apache.ibatis.reflection.ReflectionException: There is no setter for property named 'rs' in 'class java.lang.Class' at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:8) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:61) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:53) at org.apache.ibatis.binding.MapperMethod.executeForList(MapperMethod.java:82) at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:63) at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:35) at $Proxy8.getList(Unknown Source) at com.dao.ProductDAO.getList(ProductDAO.java:42) at com.Ibatis3Test.main(Ibatis3Test.java:30) Caused by: org.apache.ibatis.reflection.ReflectionException: Could not set property 'rs' of 'class org.apache.ibatis.reflection.MetaObject$NullObject' with value 'oracle.jdbc.driver.OracleResultSetImpl@1a001ff' Cause: org.apache.ibatis.reflection.ReflectionException: There is no setter for property named 'rs' in 'class java.lang.Class' at org.apache.ibatis.reflection.wrapper.BeanWrapper.setBeanProperty(BeanWrapper.java:154) at org.apache.ibatis.reflection.wrapper.BeanWrapper.set(BeanWrapper.java:36) at org.apache.ibatis.reflection.MetaObject.setValue(MetaObject.java:120) at org.apache.ibatis.executor.resultset.FastResultSetHandler.handleOutputParameters(FastResultSetHandler.java:69) at org.apache.ibatis.executor.statement.CallableStatementHandler.query(CallableStatementHandler.java:44) at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:55) at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:41) at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:94) at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:72) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:59) ... 7 more Caused by: org.apache.ibatis.reflection.ReflectionException: There is no setter for property named 'rs' in 'class java.lang.Class' at org.apache.ibatis.reflection.Reflector.getSetInvoker(Reflector.java:300) at org.apache.ibatis.reflection.MetaClass.getSetInvoker(MetaClass.java:97) at org.apache.ibatis.reflection.wrapper.BeanWrapper.setBeanProperty(BeanWrapper.java:146) ... 16 more

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  • Glassfish v3 / JNDI entry cannot be found problems!

    - by REMP
    I've been having problems trying to call an EJB's method from a Java Application Client. Here is the code. EJB Remote Interface package com.test; import javax.ejb.Remote; @Remote public interface HelloBeanRemote { public String sayHello(); } EJB package com.test; import javax.ejb.Stateless; @Stateless (name="HelloBeanExample" , mappedName="ejb/HelloBean") public class HelloBean implements HelloBeanRemote { @Override public String sayHello(){ return "hola"; } } Main class (another project) import com.test.HelloBeanRemote; import javax.naming.Context; import javax.naming.InitialContext; public class Main { public void runTest()throws Exception{ Context ctx = new InitialContext(); HelloBeanRemote bean = (HelloBeanRemote)ctx.lookup("java:global/Test/HelloBeanExample!com.test.HelloBeanRemote"); System.out.println(bean.sayHello()); } public static void main(String[] args)throws Exception { Main main = new Main(); main.runTest(); } } Well, what is my problem? JNDI entry for this EJB cannot be found! java.lang.NullPointerException at com.sun.enterprise.naming.impl.SerialContext.getRemoteProvider(SerialContext.java:297) at com.sun.enterprise.naming.impl.SerialContext.getProvider(SerialContext.java:271) at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:430) at javax.naming.InitialContext.lookup(InitialContext.java:392) at testdesktop.Main.runTest(Main.java:22) at testdesktop.Main.main(Main.java:31) Exception in thread "main" javax.naming.NamingException: Lookup failed for 'java:global/Test/HelloBeanExample!com.test.HelloBeanRemote' in SerialContext [Root exception is javax.naming.NamingException: Unable to acquire SerialContextProvider for SerialContext [Root exception is java.lang.NullPointerException]] at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:442) at javax.naming.InitialContext.lookup(InitialContext.java:392) at testdesktop.Main.runTest(Main.java:22) at testdesktop.Main.main(Main.java:31) Caused by: javax.naming.NamingException: Unable to acquire SerialContextProvider for SerialContext [Root exception is java.lang.NullPointerException] at com.sun.enterprise.naming.impl.SerialContext.getProvider(SerialContext.java:276) at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:430) ... 3 more Caused by: java.lang.NullPointerException at com.sun.enterprise.naming.impl.SerialContext.getRemoteProvider(SerialContext.java:297) at com.sun.enterprise.naming.impl.SerialContext.getProvider(SerialContext.java:271) ... 4 more Java Result: 1 I've trying with different JNDI entries but nothing works (I got this entries from NetBeans console): INFO: Portable JNDI names for EJB HelloBeanExample : [java:global/Test/HelloBeanExample, java:global/Test/HelloBeanExample!com.test.HelloBeanRemote] INFO: Glassfish-specific (Non-portable) JNDI names for EJB HelloBeanExample : [ejb/HelloBean, ejb/HelloBean#com.test.HelloBeanRemote] So I tried with the following entries but I got the same exception : java:global/Test/HelloBeanExample java:global/Test/HelloBeanExample!com.test.HelloBeanRemote ejb/HelloBean ejb/HelloBean#com.test.HelloBeanRemote I'm using Netbeans 6.8 and Glassfish v3!

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  • Oracle 9i Session Disconnections

    - by mlaverd
    [Cross-Posting from ServerFault] I am in a development environment, and our test Oracle 9i server has been misbehaving for a few days now. What happens is that we have our JDBC connections disconnecting after a few successful connections. We got this box set up by our IT department and handed over to. It is 'our problem', so options like 'ask you DBA' isn't going to help me. :( Our server is set up with 3 plain databases (one is the main dev db, the other is the 'experimental' dev db). We use the Oracle 10 ojdbc14.jar thin JDBC driver (because of some bug in the version 9 of the driver). We're using Hibernate to talk to the DB. The only thing that I can see that changed is that we now have more users connecting to the server. Instead of one developer, we now have 3. With the Hibernate connection pools, I'm thinking that maybe we're hitting some limit? Anyone has any idea what's going on? Here's the stack trace on the client: Caused by: org.hibernate.exception.GenericJDBCException: could not execute query at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:126) [hibernate3.jar:na] at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:114) [hibernate3.jar:na] at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66) [hibernate3.jar:na] at org.hibernate.loader.Loader.doList(Loader.java:2235) [hibernate3.jar:na] at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2129) [hibernate3.jar:na] at org.hibernate.loader.Loader.list(Loader.java:2124) [hibernate3.jar:na] at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:401) [hibernate3.jar:na] at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:363) [hibernate3.jar:na] at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:196) [hibernate3.jar:na] at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1149) [hibernate3.jar:na] at org.hibernate.impl.QueryImpl.list(QueryImpl.java:102) [hibernate3.jar:na] ... Caused by: java.sql.SQLException: Io exception: Connection reset at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112) [ojdbc14.jar:Oracle JDBC Driver version - "10.2.0.4.0"] at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:146) [ojdbc14.jar:Oracle JDBC Driver version - "10.2.0.4.0"] at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:255) [ojdbc14.jar:Oracle JDBC Driver version - "10.2.0.4.0"] at oracle.jdbc.driver.T4CPreparedStatement.executeForDescribe(T4CPreparedStatement.java:829) [ojdbc14.jar:Oracle JDBC Driver version - "10.2.0.4.0"] at oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(OracleStatement.java:1049) [ojdbc14.jar:Oracle JDBC Driver version - "10.2.0.4.0"] at oracle.jdbc.driver.T4CPreparedStatement.executeMaybeDescribe(T4CPreparedStatement.java:854) [ojdbc14.jar:Oracle JDBC Driver version - "10.2.0.4.0"] at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1154) [ojdbc14.jar:Oracle JDBC Driver version - "10.2.0.4.0"] at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3370) [ojdbc14.jar:Oracle JDBC Driver version - "10.2.0.4.0"] at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:3415) [ojdbc14.jar:Oracle JDBC Driver version - "10.2.0.4.0"] at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:208) [hibernate3.jar:na] at org.hibernate.loader.Loader.getResultSet(Loader.java:1812) [hibernate3.jar:na] at org.hibernate.loader.Loader.doQuery(Loader.java:697) [hibernate3.jar:na] at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:259) [hibernate3.jar:na] at org.hibernate.loader.Loader.doList(Loader.java:2232) [hibernate3.jar:na]

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  • Catching error caused by InitialContext.lookup

    - by Martin Schröder
    I'm developing a command line client (Java SE6) that now needs to talk to a Glassfish 2.1 server. The code for setting up this connection is try { final InitialContext context = new InitialContext(); final String ejbName = GeneratorCancelledRemote.class.getName(); generatorCancelled = (GeneratorCancelledRemote) context.lookup(ejbName); } catch (Throwable t) { System.err.println("--> Could not call server:"); t.printStackTrace(System.err); runWithOutEJB = true; } I'm now testing it without a running server and the client (when run from Eclipse 4.2) just bombs with 31.10.2012 10:40:09 com.sun.corba.ee.impl.transport.SocketOrChannelConnectionImpl WARNUNG: "IOP00410201: (COMM_FAILURE) Connection failure: socketType: IIOP_CLEAR_TEXT; hostname: localhost; port: 3700" org.omg.CORBA.COMM_FAILURE: vmcid: SUN minor code: 201 completed: No at com.sun.corba.ee.impl.logging.ORBUtilSystemException.connectFailure(ORBUtilSystemException.java:2783) at com.sun.corba.ee.impl.logging.ORBUtilSystemException.connectFailure(ORBUtilSystemException.java:2804) at com.sun.corba.ee.impl.transport.SocketOrChannelConnectionImpl.(SocketOrChannelConnectionImpl.java:261) at com.sun.corba.ee.impl.transport.SocketOrChannelConnectionImpl.(SocketOrChannelConnectionImpl.java:274) at com.sun.corba.ee.impl.transport.SocketOrChannelContactInfoImpl.createConnection(SocketOrChannelContactInfoImpl.java:130) at com.sun.corba.ee.impl.protocol.CorbaClientRequestDispatcherImpl.beginRequest(CorbaClientRequestDispatcherImpl.java:192) at com.sun.corba.ee.impl.protocol.CorbaClientDelegateImpl.request(CorbaClientDelegateImpl.java:184) at com.sun.corba.ee.impl.protocol.CorbaClientDelegateImpl.is_a(CorbaClientDelegateImpl.java:328) at org.omg.CORBA.portable.ObjectImpl._is_a(ObjectImpl.java:112) at org.omg.CosNaming.NamingContextHelper.narrow(NamingContextHelper.java:69) at com.sun.enterprise.naming.SerialContext.narrowProvider(SerialContext.java:134) at com.sun.enterprise.naming.SerialContext.getCachedProvider(SerialContext.java:259) at com.sun.enterprise.naming.SerialContext.getRemoteProvider(SerialContext.java:204) at com.sun.enterprise.naming.SerialContext.getProvider(SerialContext.java:159) at com.sun.enterprise.naming.SerialContext.lookup(SerialContext.java:409) at javax.naming.InitialContext.lookup(InitialContext.java:392) at com.werkii.latex.generator.Generator.main(Generator.java:344) Caused by: java.lang.RuntimeException: java.net.ConnectException: Connection refused: connect at com.sun.enterprise.iiop.IIOPSSLSocketFactory.createSocket(IIOPSSLSocketFactory.java:347) at com.sun.corba.ee.impl.transport.SocketOrChannelConnectionImpl.(SocketOrChannelConnectionImpl.java:244) ... 14 more Caused by: java.net.ConnectException: Connection refused: connect at sun.nio.ch.Net.connect(Native Method) at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:532) at com.sun.corba.ee.impl.orbutil.ORBUtility.openSocketChannel(ORBUtility.java:105) at com.sun.enterprise.iiop.IIOPSSLSocketFactory.createSocket(IIOPSSLSocketFactory.java:332) ... 15 more It's o.k. for now (while I'm still in development) that it bombs, but it does this repeatedly and the catch clause is never reached (even though I'm catching Throwable) - the message is not printed. So how can I handle connection errors during lookup in my program?

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  • How to deploy custom MBean to Tomcat?

    - by Christian
    Hi, I'm trying to deploy a custom mbean to a tomcat. This mbean is not part of a webapp. It should be instantiated when tomcat starts. My problem is, I can't find any complete documentation about how to deploy such a mbean. I'm getting different exceptions, depending on my configuration. Has anyone hints, a complete documentation or has implemented a mbean by himself and can post an example? I configured tomcat to read a configuration from his conf directory: <Engine name="Catalina" defaultHost="localhost" mbeansFile="${catalina.base}/conf/mbeans-descriptors.xml"> The content is as follows: <?xml version="1.0"?> <!-- <!DOCTYPE mbeans-descriptors PUBLIC "-//Apache Software Foundation//DTD Model MBeans Configuration File" "http://jakarta.apache.org/commons/dtds/mbeans-descriptors.dtd"> --> <!-- Descriptions of JMX MBeans --> <mbeans-descriptors> <mbean name="Performance" description="Caculate JVM throughput" type="Performance"> <attribute name="throughput" description="calculated throughput (ratio between gc times and uptime of JVM)" type="double" writeable="false"/> </mbean> </mbeans-descriptors> When name in the xml file and class name match, I get this excption: SEVERE: Error creating mbean Performance javax.management.MalformedObjectNameException: Key properties cannot be empty at javax.management.ObjectName.construct(ObjectName.java:467) at javax.management.ObjectName.<init>(ObjectName.java:1403) at org.apache.tomcat.util.modeler.modules.MbeansSource.execute(MbeansSource.java:202) at org.apache.tomcat.util.modeler.modules.MbeansSource.load(MbeansSource.java:137) at org.apache.catalina.core.StandardEngine.readEngineMbeans(StandardEngine.java:517) at org.apache.catalina.core.StandardEngine.init(StandardEngine.java:321) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:411) at org.apache.catalina.core.StandardService.start(StandardService.java:519) at org.apache.catalina.core.StandardServer.start(StandardServer.java:710) at org.apache.catalina.startup.Catalina.start(Catalina.java:581) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.commons.daemon.support.DaemonLoader.start(DaemonLoader.java:177) When changing the name attribute in the xml file to test.example:type=Performance, I get this exception: SEVERE: Error creating mbean test.example:type=Performance javax.management.NotCompliantMBeanException: MBean class must have public constructor at com.sun.jmx.mbeanserver.Introspector.testCreation(Introspector.java:127) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.createMBean(DefaultMBeanServerInterceptor.java:284) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.createMBean(DefaultMBeanServerInterceptor.java:199) at com.sun.jmx.mbeanserver.JmxMBeanServer.createMBean(JmxMBeanServer.java:393) at org.apache.tomcat.util.modeler.modules.MbeansSource.execute(MbeansSource.java:207) at org.apache.tomcat.util.modeler.modules.MbeansSource.load(MbeansSource.java:137) at org.apache.catalina.core.StandardEngine.readEngineMbeans(StandardEngine.java:517) at org.apache.catalina.core.StandardEngine.init(StandardEngine.java:321) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:411) at org.apache.catalina.core.StandardService.start(StandardService.java:519) at org.apache.catalina.core.StandardServer.start(StandardServer.java:710) at org.apache.catalina.startup.Catalina.start(Catalina.java:581) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.commons.daemon.support.DaemonLoader.start(DaemonLoader.java:177) The documentation from apache is not really helpful, as it just explains a small part. I'm aware of this question but it doesn't help me. The answer I gave worked just for a short time, after that I got some other exceptions. For additional info, the java interface public interface PerformanceMBean { public double getThroughput(); } and implementing class /* some import statements */ public class Performance implements PerformanceMBean { public double getThroughput() { ... } }

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  • Can I use `UnlockCommercialFeatures` for developing Java applications without a commercial license?

    - by nondescript1
    As of Java 7 Update 40, Oracle is now including Java Mission Control in the JDK. Being always interested in a new profiling tool, I decided to check it out. However, trying to start Flight Recorder against a process, I get the following error, Now I'm getting cold feet about adding the JVM option -XX:+UnlockCommercialFeatures. I would only use this for profiling in development and not in production. From the article linked above, JMC is available under the Oracle Binary Code License for Java. The license allows you to use JMC for free during development and testing, though a different (paid for) licence is required for production use. I'm still leery about this. From Java SE Products, Flight Recorder certainly is a commercial feature; however, I find it very confusing that it's now included in the standard JDK release. Anyone else have a read on this? Clearly nothing here is legally binding and your legal department should be consulted. Reference: Oracle Binary Code License Agreement for the Java SE Platform Products and JavaFX

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  • MySQL at Mobile World Congress (on Valentine's Day...)

    - by mat.keep(at)oracle.com
    It is that time of year again when the mobile communications industry converges on Barcelona for what many regard as the premier telecommunications show of the year.Starting on February 14th, what better way for a Brit like me to spend Valentines Day with 50,000 mobile industry leaders (my wife doesn't tend to read this blog, so I'm reasonably safe with that statement).As ever, Oracle has an extensive presence at the show, and part of that presence this year includes MySQL.We will be running a live demonstration of the MySQL Cluster database on Booth 7C18 in the App Planet.The demonstration will show how the MySQL Cluster Connector for Java is implemented to provide native connectivity to the carrier grade MySQL Cluster database from Java ME clients via Java SE virtual machines and Java EE servers.  The demonstration will show how end-to-end Java services remain continuously available during both catastrophic failures and scheduled maintenance activities.The MySQL Cluster Connector for Java provides both a native Java API and JPA plug-in that directly maps Java objects to relational tables stored in the MySQL Cluster database, without the overhead and complexity of having to transform objects to JDBC, and then SQL  The result is 10x higher throughput, and a simpler development model for Java engineers.Stop by the stand for a demonstration, and an opportunity to speak with the MySQL telecoms team who will share experiences on how MySQL is being used to bring the innovation of the web to the carrier network.Of course, if you can't make it to Barcelona, you can still learn more about the MySQL Cluster Connector for Java from this whitepaper and are free to download it as part of MySQL Cluster Community Edition  Let us know via the comments if you have Java applications that you think will benefit from the MySQL Cluster Connector for JavaI can't promise that Valentines Day at MWC will be the time you fall in love with MySQL Cluster...but I'm confident you will at least develop a healthy respect for it  

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