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  • deploying war on tomcat fails to start

    - by Asghar
    i have a java application which uses JAX_WS when i deployed on my tomcat5 server . it is deployed successfully. but it fails to start SEVERE: WSSERVLET11: failed to parse runtime descriptor: java.lang.IllegalArgumentException: prefix cannot be "null" when creating a QName java.lang.IllegalArgumentException: prefix cannot be "null" when creating a QName at javax.xml.namespace.QName.<init>(xml-commons-apis-1.3.02.jar.so) at gnu.xml.stream.XMLParser.getAttributeName(libgcj.so.7rh) at com.sun.xml.ws.util.xml.XMLStreamReaderFilter.getAttributeName(XMLStreamReaderFilter.java:228) at com.sun.xml.ws.streaming.XMLStreamReaderUtil$AttributesImpl.<init>(XMLStreamReaderUtil.java:355) at com.sun.xml.ws.streaming.XMLStreamReaderUtil.getAttributes(XMLStreamReaderUtil.java:198) at com.sun.xml.ws.transport.http.DeploymentDescriptorParser.parseAdapters(DeploymentDescriptorParser.java:204) at com.sun.xml.ws.transport.http.DeploymentDescriptorParser.parse(DeploymentDescriptorParser.java:147) at com.sun.xml.ws.transport.http.servlet.WSServletContextListener.contextInitialized(WSServletContextListener.java:124) at org.apache.catalina.core.StandardContext.listenerStart(catalina-5.5.23.jar.so) at org.apache.catalina.core.StandardContext.start(catalina-5.5.23.jar.so) at org.apache.catalina.manager.ManagerServlet.start(catalina-manager-5.5.23.jar.so) at org.apache.catalina.manager.HTMLManagerServlet.start(catalina-manager-5.5.23.jar.so) at org.apache.catalina.manager.HTMLManagerServlet.doGet(catalina-manager-5.5.23.jar.so) at javax.servlet.http.HttpServlet.service(tomcat5-servlet-2.4-api-5.5.23.jar.so) at javax.servlet.http.HttpServlet.service(tomcat5-servlet-2.4-api-5.5.23.jar.so) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(catalina-5.5.23.jar.so) at org.apache.catalina.core.ApplicationFilterChain.doFilter(catalina-5.5.23.jar.so) at org.apache.catalina.core.StandardWrapperValve.invoke(catalina-5.5.23.jar.so) at org.apache.catalina.core.StandardContextValve.invoke(catalina-5.5.23.jar.so) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(catalina-5.5.23.jar.so) at org.apache.catalina.core.StandardHostValve.invoke(catalina-5.5.23.jar.so) at org.apache.catalina.valves.ErrorReportValve.invoke(catalina-5.5.23.jar.so) at org.apache.catalina.core.StandardEngineValve.invoke(catalina-5.5.23.jar.so) at org.apache.catalina.connector.CoyoteAdapter.service(catalina-5.5.23.jar.so) at org.apache.coyote.http11.Http11Processor.process(tomcat-http-5.5.23.jar.so) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(tomcat-http-5.5.23.jar.so) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(tomcat-util-5.5.23.jar.so) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(tomcat-util-5.5.23.jar.so) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(tomcat-util-5.5.23.jar.so) at java.lang.Thread.run(libgcj.so.7rh)

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  • Problems setting up VLC Sever/client streaming

    - by Ayos
    I'm trying to set up a Linux machine as the server and a Windows XP machine as the client. Both machines are connected to the same local network via a Wi-Fi router. I setup the stream with the following properties : http stream port 8080 play locally And not much else. No firewall on the windows client(Windows firewall is disabled) When I try to open network stream via the client machine(Using VLC or Windows Media Player) I get the following errors: Media Player error code : 0xC00D11B3: Encountered a network Problem. VLC Console: main warning: connection timed out access_mms error: cannot connect to 192.168.1.3:8080 main debug: no access module matching "http" could be loaded main debug: TIMER module_need() : 12625.810 ms - Total 12625.810 ms / 1 intvls (Avg 12625.809 ms) main error: open of `http://192.168.1.3:8080' failed main debug: dead input main debug: repeating item main debug: starting playback of the new playlist item main debug: resyncing on http://192.168.1.3:8080 main debug: http://192.168.1.3:8080 is at 0 main debug: creating new input thread main debug: Creating an input for 'http://192.168.1.3:8080' main debug: using timeshift granularity of 50 MiB, in path 'C:\DOCUME~1\Accer\LOCALS~1\Temp' main debug: `http://192.168.1.3:8080' gives access `http' demux `' path `192.168.1.3:8080' main debug: creating demux: access='http' demux='' location='192.168.1.3:8080' file='\\192.168.1.3:8080' main debug: looking for access_demux module: 0 candidates main debug: no access_demux module matched "http" main debug: TIMER module_need() : 0.461 ms - Total 0.461 ms / 1 intvls (Avg 0.461 ms) main debug: creating access 'http' location='192.168.1.3:8080', path='\\192.168.1.3:8080' main debug: looking for access module: 2 candidates access_http debug: http: server='192.168.1.3' port=8080 file='' main debug: net: connecting to 192.168.1.3 port 8080 qt4 debug: IM: Deleting the input main debug: TIMER input launching for 'http://192.168.1.3:8080' : 13397.979 ms - Total 13397.979 ms / 1 intvls (Avg 13397.978 ms) qt4 debug: IM: Setting an input Need Help. Thanks in advance.

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  • JPA exception: Object: ... is not a known entity type.

    - by Toto
    I'm new to JPA and I'm having problems with the autogeneration of primary key values. I have the following entity: package jpatest.entities; import java.io.Serializable; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.GenerationType; import javax.persistence.Id; @Entity public class MyEntity implements Serializable { private static final long serialVersionUID = 1L; @Id @GeneratedValue(strategy = GenerationType.AUTO) private Long id; public Long getId() { return id; } public void setId(Long id) { this.id = id; } private String someProperty; public String getSomeProperty() { return someProperty; } public void setSomeProperty(String someProperty) { this.someProperty = someProperty; } public MyEntity() { } public MyEntity(String someProperty) { this.someProperty = someProperty; } @Override public String toString() { return "jpatest.entities.MyEntity[id=" + id + "]"; } } and the following main method in other class: public static void main(String[] args) { EntityManagerFactory emf = Persistence.createEntityManagerFactory("JPATestPU"); EntityManager em = emf.createEntityManager(); em.getTransaction().begin(); MyEntity e = new MyEntity("some value"); em.persist(e); /* (exception thrown here) */ em.getTransaction().commit(); em.close(); emf.close(); } This is my persistence unit: <?xml version="1.0" encoding="UTF-8"?> <persistence version="1.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"> <persistence-unit name="JPATestPU" transaction-type="RESOURCE_LOCAL"> <provider>oracle.toplink.essentials.PersistenceProvider</provider> <class>jpatest.entities.MyEntity</class> <properties> <property name="toplink.jdbc.user" value="..."/> <property name="toplink.jdbc.password" value="..."/> <property name="toplink.jdbc.url" value="jdbc:mysql://localhost:3306/jpatest"/> <property name="toplink.jdbc.driver" value="com.mysql.jdbc.Driver"/> <property name="toplink.ddl-generation" value="create-tables"/> </properties> </persistence-unit> </persistence> When I execute the program I get the following exception in the line marked with the proper comment: Exception in thread "main" java.lang.IllegalArgumentException: Object: jpatest.entities.MyEntity[id=null] is not a known entity type. at oracle.toplink.essentials.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:3212) at oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerImpl.persist(EntityManagerImpl.java:205) at jpatest.Main.main(Main.java:...) What am I missing?

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  • Scheduling a RichCopy Jobs

    - by Ian B
    Anyone use the timer feature of RichCopy? I have a job that works fine when I manually start the job. However, when I schedule the job and click run, the app appears to be waiting for the scheduled time to elapse yet never fires. Interesting enough when I stop the job the copy starts. Anyone have any experience with using RichCopy timer? IanB

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  • SunTlsRsaPremasterSecret KeyGenerator not available

    - by Jill
    Hi, I encountered an error when my application tries to load a RSA Algorithm provider class from JAVA. The exception stack is as follow: javax.jms.JMSException: RSA premaster secret error at org.apache.activemq.util.JMSExceptionSupport.create(JMSExceptionSupport.java:49) at org.apache.activemq.ActiveMQConnection.syncSendPacket(ActiveMQConnection.java:1255) at org.apache.activemq.ActiveMQConnection.ensureConnectionInfoSent(ActiveMQConnection.java:1350) at org.apache.activemq.ActiveMQConnection.setClientID(ActiveMQConnection.java:388) at com.trendmicro.tmsm.TMSMAgent.open(TMSMAgent.java:63) Caused by: javax.net.ssl.SSLKeyException: RSA premaster secret error at com.sun.net.ssl.internal.ssl.RSAClientKeyExchange.<init>(RSAClientKeyExchange.java:97) at com.sun.net.ssl.internal.ssl.ClientHandshaker.serverHelloDone(ClientHandshaker.java:634) at com.sun.net.ssl.internal.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:226) at com.sun.net.ssl.internal.ssl.Handshaker.processLoop(Handshaker.java:516) at com.sun.net.ssl.internal.ssl.Handshaker.process_record(Handshaker.java:454) at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:884) at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1112) at com.sun.net.ssl.internal.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:623) at com.sun.net.ssl.internal.ssl.AppOutputStream.write(AppOutputStream.java:59) at org.apache.activemq.transport.tcp.TcpBufferedOutputStream.flush(TcpBufferedOutputStream.java:115) at java.io.DataOutputStream.flush(DataOutputStream.java:106) at org.apache.activemq.transport.tcp.TcpTransport.oneway(TcpTransport.java:167) at org.apache.activemq.transport.InactivityMonitor.oneway(InactivityMonitor.java:237) at org.apache.activemq.transport.WireFormatNegotiator.sendWireFormat(WireFormatNegotiator.java:168) at org.apache.activemq.transport.WireFormatNegotiator.sendWireFormat(WireFormatNegotiator.java:84) at org.apache.activemq.transport.WireFormatNegotiator.start(WireFormatNegotiator.java:74) at org.apache.activemq.transport.failover.FailoverTransport.doReconnect(FailoverTransport.java:715) at org.apache.activemq.transport.failover.FailoverTransport$2.iterate(FailoverTransport.java:115) at org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:122) at org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:43) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:637) Caused by: java.security.NoSuchAlgorithmException: SunTlsRsaPremasterSecret KeyGenerator not available at javax.crypto.KeyGenerator.<init>(DashoA13*..) at javax.crypto.KeyGenerator.getInstance(DashoA13*..) at com.sun.net.ssl.internal.ssl.JsseJce.getKeyGenerator(JsseJce.java:223) at com.sun.net.ssl.internal.ssl.RSAClientKeyExchange.<init>(RSAClientKeyExchange.java:89) ... 22 more I've googled the error message and most of posts says it's because JVM cannot find sunjce_provider.jar. However, I can find the file in /Library/Java/Home/lib/ext folder. The platform is Mac OS X 10.6 and Java version is 1.6.0_17. My questions are: Why JVM does not search /Library/Java/Home/lib/ext for jar files? Can we change CLASSPATH or java.ext.dirs property by modify any config file? Any suggestion to solve this problem? Thanks in advance.

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  • error when I use GWT RPC

    - by Sebe
    Hello everyone... I have a problem with Eclipse when I use an RPC.. If I use a single method call it's all in the right direction but if I add a new method to handle the server I get the following error: com.google.gwt.core.client.JavaScriptException: (null): null at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:237) at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:126) at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:561) at com.google.gwt.dev.shell.ModuleSpace.invokeNativeBoolean(ModuleSpace.java:184) at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeBoolean(JavaScriptHost.java:35) at com.google.gwt.user.client.rpc.impl.RpcStatsContext.isStatsAvailable(RpcStatsContext.java) at com.google.gwt.user.client.rpc.impl.RequestCallbackAdapter.onResponseReceived(RequestCallbackAdapter.java:221) at com.google.gwt.http.client.Request.fireOnResponseReceived(Request.java:287) at com.google.gwt.http.client.RequestBuilder$1.onReadyStateChange(RequestBuilder.java:395) 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 com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103) at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71) at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:157) at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessagesWhileWaitingForReturn(BrowserChannelServer.java:326) at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:207) at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:126) at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:561) at com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:269) at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:91) at com.google.gwt.core.client.impl.Impl.apply(Impl.java) at com.google.gwt.core.client.impl.Impl.entry0(Impl.java:214) at sun.reflect.GeneratedMethodAccessor13.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103) at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71) at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:157) at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessages(BrowserChannelServer.java:281) at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:531) at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:352) at java.lang.Thread.run(Thread.java:619) Can I have more services in an asynchronous call right? Where am I wrong? This is my implementation MyService: package de.vogella.gwt.helloworld.client; import com.google.gwt.user.client.rpc.RemoteService; public interface MyService extends RemoteService { //chiamo i metodi presenti sul server public void creaXML(String nickname,String pass,String email2,String gio,String mes, String ann); public void setWeb(String userCorrect,String query, String titolo,String snippet,String url); } MyServiceAsync package de.vogella.gwt.helloworld.client; import com.google.gwt.user.client.rpc.AsyncCallback; public interface MyServiceAsync { void creaXML(String nickname,String pass,String email2,String gio,String mes, String ann,AsyncCallback<Void> callback); void setWeb(String userCorrect,String query, String titolo,String snippet,String url, AsyncCallback<Void> callback); } RPCService: package de.vogella.gwt.helloworld.client; import com.google.gwt.core.client.GWT; import com.google.gwt.user.client.rpc.AsyncCallback; import com.google.gwt.user.client.rpc.ServiceDefTarget; import com.google.gwt.user.client.ui.FlexTable; public class RPCService implements MyServiceAsync { MyServiceAsync service = (MyServiceAsync) GWT.create(MyService.class); ServiceDefTarget endpoint = (ServiceDefTarget) service; public RPCService() { endpoint.setServiceEntryPoint(GWT.getModuleBaseURL() + "rpc"); } public void creaXML(String nickname,String pass,String email2,String gio,String mes, String ann,AsyncCallback callback) { service.creaXML(nickname, pass, email2, gio, mes, ann, callback); } public void setWeb(String userCorrect,String query, String titolo,String snippet,String url,AsyncCallback callback) { service.setWeb(userCorrect,query, titolo,snippet,url,callback); } } MyServiceImpl package de.vogella.gwt.helloworld.server; import java.io.*; import org.w3c.dom.*; import org.xml.sax.SAXException; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import javax.xml.parsers.ParserConfigurationException; import javax.xml.transform.*; import javax.xml.transform.dom.DOMSource; import javax.xml.transform.stream.StreamResult; import de.vogella.gwt.helloworld.client.MyService; import com.google.gwt.user.client.ui.FlexTable; import com.google.gwt.user.server.rpc.RemoteServiceServlet; import com.google.gwt.xml.client.Element; import com.google.gwt.xml.client.NodeList; public class MyServiceImpl extends RemoteServiceServlet implements MyService { //metodo che inserisce il nuovo iscritto public void creaXML(String nickname,String pass,String email2,String gio,String mes, String ann){ ....... } public void setWeb(String userCorrect,String query, String titolo,String snippet,String url) { ..... } In the app in client-side I do RPCService rpc2 = New RPCService() rpc2.setWeb(..,...,...,...,callback); and RPCService rpc = New RPCService() rpc.creaXML(..,...,...,...,callback); (in other posizions in the code...) and.. AsyncCallback callback = new AsyncCallback() { public void onFailure(Throwable caught) { Window.alert("Failure!"); } public void onSuccess(Object result) { Window.alert("Successoooooo"); } }; Web.xml: <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd"> <web-app> <!-- Servlets --> <!-- Default page to serve --> <welcome-file-list> <welcome-file>De_vogella_gwt_helloworld.html</welcome-file> </welcome-file-list> <servlet> <servlet-name>rPCImpl</servlet-name> <servlet-class>de.vogella.gwt.helloworld.server.MyServiceImpl</servlet-class> </servlet> <servlet-mapping> <servlet-name>rPCImpl</servlet-name> <url-pattern>/de_vogella_gwt_helloworld/rpc</url-pattern> </servlet-mapping> </web-app> Thank you all for your attention Sebe

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  • Silverlight animation not smooth

    - by Andrej
    Hi, When trying to animate objects time/frame based in Silverlight (in contrast to using something like DoubleAnimation or Storyboard, which is not suitable e.g. for fast paced games), for example moving a spaceship in a particular direction every frame, the movement is jumpy and not really smooth. The screen even seems to tear. There seems to be no difference between CompositionTarget and DistpatcherTimer. I use the following approach (in pseudocode): Register Handler to Tick-Event of a DispatcherTimer In each Tick: Compute the elapsed time from the last frame in milliseconds Object.X += movementSpeed * ellapsedMilliseconds This should result in a smooth movement, right? But it doesn't. Here is an example (Controls: WASD and Mouse): Silverlight Game. Although the effect I described is not too prevalent in this sample, I can assure you that even moving a single rectangle over a canvas produces a jumpy animation. Does someone have an idea how to minimize this. Are there other approaches to to frame based animation exept using Storyboards/DoubleAnimations which could solve this? Edit: Here a quick and dirty approach, animating a rectangle with minimum code (Controls: A and D) Animation Sample Xaml: <Grid x:Name="LayoutRoot" Background="Black"> <Canvas Width="1000" Height="400" Background="Blue"> <Rectangle x:Name="rect" Width="48" Height="48" Fill="White" Canvas.Top="200" Canvas.Left="0"/> </Canvas> </Grid> C#: private bool isLeft = false; private bool isRight = false; private DispatcherTimer timer = new DispatcherTimer(); private double lastUpdate; public Page() { InitializeComponent(); timer.Interval = TimeSpan.FromMilliseconds(1); timer.Tick += OnTick; lastUpdate = Environment.TickCount; timer.Start(); } private void OnTick(object sender, EventArgs e) { double diff = Environment.TickCount - lastUpdate; double x = Canvas.GetLeft(rect); if (isRight) x += 1 * diff; else if (isLeft) x -= 1 * diff; Canvas.SetLeft(rect, x); lastUpdate = Environment.TickCount; } private void UserControl_KeyDown(object sender, KeyEventArgs e) { if (e.Key == Key.D) isRight = true; if (e.Key == Key.A) isLeft = true; } private void UserControl_KeyUp(object sender, KeyEventArgs e) { if (e.Key == Key.D) isRight = false; if (e.Key == Key.A) isLeft = false; } Thanks! Andrej

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  • Problem with cometd and jetty 6 / 7

    - by Ceilingfish
    Hi chaps, I'm trying to get started with cometd (http://cometd.org/) and jetty 6 or 7, but I seem to be having problems. I've got an ant script that packages my code up into a war with the cometd 1.1.1 binaries and jetty binaries that are appropriate to the version of jetty I deploy the war to (so 7.1.2.v20100523 binaries when I deploy to jetty 7.1.2.v20100523 and 6.1.24 when I deploy to 6.1.24). I first tried getting a setup with version 7.1.2.v20100523, but when I tried to deploy I got a very long stack trace sample of which is: 2010-05-26 15:32:12.906:WARN::Problem processing jar entry org/eclipse/jetty/util/MultiPartOutputStream.class java.io.IOException: Invalid resource at org.eclipse.jetty.util.resource.URLResource.getInputStream(URLResource.java:204) at org.eclipse.jetty.util.resource.JarResource.getInputStream(JarResource.java:113) at org.eclipse.jetty.annotations.AnnotationParser$2.processEntry(AnnotationParser.java:575) at org.eclipse.jetty.webapp.JarScanner.matched(JarScanner.java:152) at org.eclipse.jetty.util.PatternMatcher.matchPatterns(PatternMatcher.java:82) at org.eclipse.jetty.util.PatternMatcher.match(PatternMatcher.java:64) at org.eclipse.jetty.webapp.JarScanner.scan(JarScanner.java:75) at org.eclipse.jetty.annotations.AnnotationParser.parse(AnnotationParser.java:587) at org.eclipse.jetty.annotations.AbstractConfiguration.parseWebInfLib(AbstractConfiguration.java:107) at org.eclipse.jetty.annotations.AnnotationConfiguration.configure(AnnotationConfiguration.java:68) at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:992) at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:579) at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:381) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:55) at org.eclipse.jetty.deploy.bindings.StandardStarter.processBinding(StandardStarter.java:36) at org.eclipse.jetty.deploy.AppLifeCycle.runBindings(AppLifeCycle.java:182) at org.eclipse.jetty.deploy.DeploymentManager.requestAppGoal(DeploymentManager.java:497) at org.eclipse.jetty.deploy.DeploymentManager.addApp(DeploymentManager.java:135) at org.eclipse.jetty.deploy.providers.ScanningAppProvider$1.fileChanged(ScanningAppProvider.java:77) at org.eclipse.jetty.util.Scanner.reportChange(Scanner.java:490) at org.eclipse.jetty.util.Scanner.reportDifferences(Scanner.java:355) at org.eclipse.jetty.util.Scanner.scan(Scanner.java:306) at org.eclipse.jetty.util.Scanner$1.run(Scanner.java:258) at java.util.TimerThread.mainLoop(Timer.java:512) at java.util.TimerThread.run(Timer.java:462) 2010-05-26 15:32:12.907:WARN::Problem processing jar entry org/eclipse/jetty/util/MultiPartWriter.class java.io.IOException: Invalid resource at org.eclipse.jetty.util.resource.URLResource.getInputStream(URLResource.java:204) at org.eclipse.jetty.util.resource.JarResource.getInputStream(JarResource.java:113) at org.eclipse.jetty.annotations.AnnotationParser$2.processEntry(AnnotationParser.java:575) at org.eclipse.jetty.webapp.JarScanner.matched(JarScanner.java:152) at org.eclipse.jetty.util.PatternMatcher.matchPatterns(PatternMatcher.java:82) at org.eclipse.jetty.util.PatternMatcher.match(PatternMatcher.java:64) at org.eclipse.jetty.webapp.JarScanner.scan(JarScanner.java:75) at org.eclipse.jetty.annotations.AnnotationParser.parse(AnnotationParser.java:587) at org.eclipse.jetty.annotations.AbstractConfiguration.parseWebInfLib(AbstractConfiguration.java:107) at org.eclipse.jetty.annotations.AnnotationConfiguration.configure(AnnotationConfiguration.java:68) at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:992) at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:579) at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:381) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:55) at org.eclipse.jetty.deploy.bindings.StandardStarter.processBinding(StandardStarter.java:36) at org.eclipse.jetty.deploy.AppLifeCycle.runBindings(AppLifeCycle.java:182) at org.eclipse.jetty.deploy.DeploymentManager.requestAppGoal(DeploymentManager.java:497) at org.eclipse.jetty.deploy.DeploymentManager.addApp(DeploymentManager.java:135) at org.eclipse.jetty.deploy.providers.ScanningAppProvider$1.fileChanged(ScanningAppProvider.java:77) at org.eclipse.jetty.util.Scanner.reportChange(Scanner.java:490) at org.eclipse.jetty.util.Scanner.reportDifferences(Scanner.java:355) at org.eclipse.jetty.util.Scanner.scan(Scanner.java:306) at org.eclipse.jetty.util.Scanner$1.run(Scanner.java:258) at java.util.TimerThread.mainLoop(Timer.java:512) at java.util.TimerThread.run(Timer.java:462) 2010-05-26 15:32:12.907:WARN::Problem processing jar entry org/eclipse/jetty/util/Attributes.class java.io.IOException: Invalid resource at org.eclipse.jetty.util.resource.URLResource.getInputStream(URLResource.java:204) at org.eclipse.jetty.util.resource.JarResource.getInputStream(JarResource.java:113) at org.eclipse.jetty.annotations.AnnotationParser$2.processEntry(AnnotationParser.java:575) at org.eclipse.jetty.webapp.JarScanner.matched(JarScanner.java:152) at org.eclipse.jetty.util.PatternMatcher.matchPatterns(PatternMatcher.java:82) at org.eclipse.jetty.util.PatternMatcher.match(PatternMatcher.java:64) at org.eclipse.jetty.webapp.JarScanner.scan(JarScanner.java:75) at org.eclipse.jetty.annotations.AnnotationParser.parse(AnnotationParser.java:587) at org.eclipse.jetty.annotations.AbstractConfiguration.parseWebInfLib(AbstractConfiguration.java:107) at org.eclipse.jetty.annotations.AnnotationConfiguration.configure(AnnotationConfiguration.java:68) at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:992) at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:579) at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:381) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:55) at org.eclipse.jetty.deploy.bindings.StandardStarter.processBinding(StandardStarter.java:36) at org.eclipse.jetty.deploy.AppLifeCycle.runBindings(AppLifeCycle.java:182) at org.eclipse.jetty.deploy.DeploymentManager.requestAppGoal(DeploymentManager.java:497) at org.eclipse.jetty.deploy.DeploymentManager.addApp(DeploymentManager.java:135) at org.eclipse.jetty.deploy.providers.ScanningAppProvider$1.fileChanged(ScanningAppProvider.java:77) at org.eclipse.jetty.util.Scanner.reportChange(Scanner.java:490) at org.eclipse.jetty.util.Scanner.reportDifferences(Scanner.java:355) at org.eclipse.jetty.util.Scanner.scan(Scanner.java:306) at org.eclipse.jetty.util.Scanner$1.run(Scanner.java:258) at java.util.TimerThread.mainLoop(Timer.java:512) at java.util.TimerThread.run(Timer.java:462) Seemed to go through all the jetty binaries and complain about each class file. When I tried to deploy to 6.1.24 I got org.mortbay.util.MultiException[java.lang.NoClassDefFoundError: org/eclipse/jetty/util/ajax/JSON$Source, java.lang.NoClassDefFoundError: org/eclipse/jetty/util/thread/ThreadPool] at org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:656) at org.mortbay.jetty.servlet.Context.startContext(Context.java:140) at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250) at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517) at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152) at org.mortbay.jetty.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:156) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130) at org.mortbay.jetty.Server.doStart(Server.java:224) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.xml.XmlConfiguration.main(XmlConfiguration.java:985) 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.mortbay.start.Main.invokeMain(Main.java:194) at org.mortbay.start.Main.start(Main.java:534) at org.mortbay.start.Main.start(Main.java:441) at org.mortbay.start.Main.main(Main.java:119) My web.xml looks like this: <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5"> <servlet> <servlet-name>cometd</servlet-name> <servlet-class>org.cometd.server.continuation.ContinuationCometdServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>cometd</servlet-name> <url-pattern>/cometd/*</url-pattern> </servlet-mapping> <servlet> <servlet-name>initializer</servlet-name> <servlet-class>uk.co.dubit.nexus.comet.BayeuxInitializer</servlet-class> <load-on-startup>2</load-on-startup> </servlet> <!-- <filter> <filter-name>cross-origin</filter-name> <filter-class>org.eclipse.jetty.servlets.CrossOriginFilter</filter-class> </filter> <filter-mapping> <filter-name>cross-origin</filter-name> <url-pattern>/cometd/*</url-pattern> </filter-mapping> --> </web-app> note cross origin filter is commented out. The class didn't seem to exist when I tried to run on 6.1.24 (which as far as I understand is the correct behaviour, yes?). Sorry for the noob question but does anyone know what I'm doing wrong here? Regards, Tom

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  • setOpaque(true/false); Java

    - by Trizicus
    In Java2D when you use setOpaque I am a little confused on what the true and false does. For example I know that in Swing Opaque means that when painting Swing wont paint what is behind the component. Or is this backwards? Which one is it? Thanks

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  • James Server connection failure exception

    - by John
    Hi, I'm trying to connect Javamail application to James server, but I'm getting javax.mail.MessagingException: Could not connect to SMTP host:localhost, port:4555; nested exception is: java.net.SocketException: Invalid arguent: connect Here's the code, which is creating a little problem for me: import java.security.Security; import java.io.IOException; import java.io.PrintWriter; import java.util.Properties; import javax.mail.*; import javax.mail.internet.*; public class mail { public static void main(String[] argts) { Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider()); String mailHost = "your.smtp.server"; String to = "blue@localhost"; String from = "red@localhost"; String subject = "jdk"; String body = "Down to wind"; if ((from != null) && (to != null) && (subject != null) && (body != null)) // we have mail to send { try { //Get system properties Properties props = System.getProperties(); props.put("mail.smtp.user", "red"); props.put("mail.smtp.host", "localhost"); props.put("mail.debug", "true"); props.put("mail.smtp.port", 4555); props.put("mail.smtp.socketFactory.port", 4555); props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory"); props.put("mail.smtp.socketFactory.fallback", "false"); Session session = Session.getInstance(props,null); Message message = new MimeMessage(session); message.setFrom(new InternetAddress(from)); message.setRecipients(Message.RecipientType.TO, new InternetAddress[] { new InternetAddress(to) }); message.setSubject(subject); message.setContent(body, "text/plain"); message.setText(body); Transport.send(message); System.out.println("<b>Thank you. Your message to " + to + " was successfully sent.</b>"); } catch (Throwable t) { System.out.println("Teri maa ki "+t); } } } } Thanks in advance. :)

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  • Cannot get a connection, pool error Timeout waiting for idle object :sakai

    - by siddhant
    iam using sakai 2.9.1 after a few operations the server stops responding and prints log:- 2014-02-20 12:48:47,085 WARN http-bio-8080-exec-18 org.sakaiproject.db.impl.BasicSqlService - Sql.dbRead: sql: select SAKAI_SITE.SITE_ID,SAKAI_SITE.TITLE,SAKAI_SITE.TYPE,SAKAI_SITE.SHO RT_DESC,SAKAI_SITE.DESCRIPTION,SAKAI_SITE.ICON_URL,SAKAI_SITE.INFO_URL,SAKAI_SITE.SKIN,SAKAI_SITE.PUBLISHED,SAKAI_SITE.JOINABLE,SAKAI_SITE.PUBVIEW,SAKAI_SITE.JOIN_ROLE,SAKAI_SITE.IS_SPE CIAL,SAKAI_SITE.IS_USER,SAKAI_SITE.CREATEDBY,SAKAI_SITE.MODIFIEDBY,SAKAI_SITE.CREATEDON,SAKAI_SITE.MODIFIEDON,SAKAI_SITE.CUSTOM_PAGE_ORDERED,SAKAI_SITE.IS_SOFTLY_DELETED,SAKAI_SITE.SOFT LY_DELETED_DATE from SAKAI_SITE where ( SITE_ID = ? ) !admin org.apache.commons.dbcp.SQLNestedException: Cannot get a connection, pool error Timeout waiting for idle object at org.apache.commons.dbcp.PoolingDataSource.getConnection(PoolingDataSource.java:104) at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:880) at org.sakaiproject.db.impl.BasicSqlService.borrowConnection(BasicSqlService.java:260) at org.sakaiproject.db.impl.BasicSqlService.dbRead(BasicSqlService.java:540) at org.sakaiproject.util.BaseDbFlatStorage.getResource(BaseDbFlatStorage.java:341) at org.sakaiproject.util.BaseDbFlatStorage.getResource(BaseDbFlatStorage.java:321) at org.sakaiproject.site.impl.DbSiteService$DbStorage.get(DbSiteService.java:236) at org.sakaiproject.site.impl.BaseSiteService.getDefinedSite(BaseSiteService.java:616) at org.sakaiproject.site.impl.BaseSiteService.getSite(BaseSiteService.java:702) at org.sakaiproject.site.impl.BaseSiteService.getSiteVisit(BaseSiteService.java:780) at org.sakaiproject.site.cover.SiteService.getSiteVisit(SiteService.java:140) at org.sakaiproject.presence.tool.PresenceTool.doGet(PresenceTool.java:141) at javax.servlet.http.HttpServlet.service(HttpServlet.java:621) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.sakaiproject.util.RequestFilter.doFilter(RequestFilter.java:634) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684) at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:471) at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:369) at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:329) at org.sakaiproject.tool.impl.ActiveToolComponent$MyActiveTool.forward(ActiveToolComponent.java:511) at org.sakaiproject.portal.charon.SkinnableCharonPortal.forwardTool(SkinnableCharonPortal.java:1470) at org.sakaiproject.portal.charon.handlers.PresenceHandler.doPresence(PresenceHandler.java:140) at org.sakaiproject.portal.charon.handlers.PresenceHandler.doGet(PresenceHandler.java:70) at org.sakaiproject.portal.charon.SkinnableCharonPortal.doGet(SkinnableCharonPortal.java:881) at javax.servlet.http.HttpServlet.service(HttpServlet.java:621) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.sakaiproject.util.RequestFilter.doFilter(RequestFilter.java:695) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:987) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:307) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:619) Caused by: java.util.NoSuchElementException: Timeout waiting for idle object at org.apache.commons.pool.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:1167) at org.apache.commons.dbcp.PoolingDataSource.getConnection(PoolingDataSource.java:96)

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  • How can I define a clojure type that implements the servlet interface?

    - by Rob Lachlan
    I'm attempting to use deftype (from the bleeding-edge clojure 1.2 branch) to create a java class that implements the java Servlet interface. I would expect the code below to compile (even though it's not very useful). (ns foo [:import [javax.servlet Servlet ServletRequest ServletResponse]]) (deftype servlet [] javax.servlet.Servlet (service [this #^javax.servlet.ServletRequest request #^javax.servlet.ServletResponse response] nil)) But it doesn't compile. The compiler produces the message: Mismatched return type: service, expected: void, had: java.lang.Object [Thrown class java.lang.IllegalArgumentException] Which doesn't make sense to me, because I'm returning nil. So the fact that the return type of the method is void shouldn't be a problem. For instance, for the java.util.Set interface: (deftype bar [#^Number n] java.util.Set (clear [this] nil)) compiles without issue. So what am I doing wrong with the Servlet interface? To be clear: I know that the typical case is to subclass one of the servlet abstract classes rather than implement this interface directly, but it should still be possible to do this. Stack Trace: The stack trace for the (deftype servlet... is: Mismatched return type: service, expected: void, had: java.lang.Object [Thrown class java.lang.IllegalArgumentException] Restarts: 0: [ABORT] Return to SLIME's top level. Backtrace: 0: clojure.lang.Compiler$NewInstanceMethod.parse(Compiler.java:6461) 1: clojure.lang.Compiler$NewInstanceExpr.build(Compiler.java:6119) 2: clojure.lang.Compiler$NewInstanceExpr$DeftypeParser.parse(Compiler.java:6003) 3: clojure.lang.Compiler.analyzeSeq(Compiler.java:5289) 4: clojure.lang.Compiler.analyze(Compiler.java:5110) 5: clojure.lang.Compiler.analyze(Compiler.java:5071) 6: clojure.lang.Compiler.eval(Compiler.java:5347) 7: clojure.lang.Compiler.eval(Compiler.java:5334) 8: clojure.lang.Compiler.eval(Compiler.java:5311) 9: clojure.core$eval__4350.invoke(core.clj:2364) 10: swank.commands.basic$eval_region__673.invoke(basic.clj:40) 11: swank.commands.basic$eval_region__673.invoke(basic.clj:31) 12: swank.commands.basic$eval__686$listener_eval__687.invoke(basic.clj:54) 13: clojure.lang.Var.invoke(Var.java:365) 14: foo$eval__2285.invoke(NO_SOURCE_FILE) 15: clojure.lang.Compiler.eval(Compiler.java:5343) 16: clojure.lang.Compiler.eval(Compiler.java:5311) 17: clojure.core$eval__4350.invoke(core.clj:2364) 18: swank.core$eval_in_emacs_package__320.invoke(core.clj:59) 19: swank.core$eval_for_emacs__383.invoke(core.clj:128) 20: clojure.lang.Var.invoke(Var.java:373) 21: clojure.lang.AFn.applyToHelper(AFn.java:169) 22: clojure.lang.Var.applyTo(Var.java:482) 23: clojure.core$apply__3776.invoke(core.clj:535) 24: swank.core$eval_from_control__322.invoke(core.clj:66) 25: swank.core$eval_loop__324.invoke(core.clj:71) 26: swank.core$spawn_repl_thread__434$fn__464$fn__465.invoke(core.clj:183) 27: clojure.lang.AFn.applyToHelper(AFn.java:159) 28: clojure.lang.AFn.applyTo(AFn.java:151) 29: clojure.core$apply__3776.invoke(core.clj:535) 30: swank.core$spawn_repl_thread__434$fn__464.doInvoke(core.clj:180) 31: clojure.lang.RestFn.invoke(RestFn.java:398) 32: clojure.lang.AFn.run(AFn.java:24) 33: java.lang.Thread.run(Thread.java:637)

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  • ie8 breaks with asp.net ajax

    - by Amadeo Torese
    Hello, When using asp.net ajax (scriptmanager, timer, updatepanel) with ie8, after certain time (~3h) IE breaks with null object, constructor, or paramArray (depending on the asp.net code). Even with the simplest timer (no ajax, no updatepanel) ie8 still breaks. On every other browser it works fine, and if I code the ajax myself it works. Since google and msdn forums turned up nothing I'm wondering if anybody here has had similar problems with ie8 browser.

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  • QueryInterface fails at casting inside COM-interface implementation

    - by brecht
    I am creating a tool in c# to retrieve messages of a CAN-network (network in a car) using an Dll written in C/C++. This dll is usable as a COM-interface. My c#-formclass implements one of these COM-interfaces. And other variables are instantiated using these COM-interfaces (everything works perfect). The problem: The interface my C#-form implements has 3 abstract functions. One of these functions is called -by the dll- and i need to implement it myself. In this function i wish to retrieve a property of a form-wide variable that is of a COM-type. The COM library is CANSUPPORTLib The form-wide variable: private CANSUPPORTLib.ICanIOEx devices = new CANSUPPORTLib.CanIO(); This variable is also form-wide and is retrieved via the devices-variable: canreceiver = (CANSUPPORTLib.IDirectCAN2)devices.get_DirectDispatch(receiverLogicalChannel); The function that is called by the dll and implemented in c# public void Message(double dTimeStamp) { Console.WriteLine("!!! message ontvangen !!!" + Environment.NewLine); try { CANSUPPORTLib.can_msg_tag message = new CANSUPPORTLib.can_msg_tag(); message = (CANSUPPORTLib.can_msg_tag) System.Runtime.InteropServices.Marshal.PtrToStructure(canreceiver.RawMessage, message.GetType()); for (int i = 0; i < message.data.Length; i++) { Console.WriteLine("byte " + i + ": " + message.data[i]); } } catch (Exception e) { Console.WriteLine(e.Message); } } The error rises at this line: message = (CANSUPPORTLib.can_msg_tag)System.Runtime.InteropServices.Marshal.PtrToStructure(canreceiver.RawMessage, message.GetType()); Error: Unable to cast COM object of type 'System.__ComObject' to interface type 'CANSUPPORTLib.IDirectCAN2'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{33373EFC-DB42-48C4-A719-3730B7F228B5}' failed due to the following error: No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE)). Notes: It is possible to have a timer-clock that checks every 100ms for the message i need. The message is then retrieved in the exact same way as i do now. This timer is started when the form starts. The checking is only done when Message(double) has put a variable to true (a message arrived). When the timer-clock is started in the Message function, i have the same error as above Starting another thread when the form starts, is also not possible. Is there someone with experience with COM-interop ? When this timer

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  • ArrayList throwing exception on retrieval from google datastore (with gwt, java)

    - by sumeet
    I'm using Google Web Toolkit with java and google datastore as database. The entity class has arraylist and on trying to retrieve the data from data base I'm getting the exception: Type 'org.datanucleus.sco.backed.ArrayList' was not included in the set of types which can be serialized by this SerializationPolicy or its Class object could not be loaded. For security purposes, this type will not be serialized. I'm using JPA. Entity code: package com.ver2.DY.client; import java.io.Serializable; import java.util.ArrayList; import javax.jdo.annotations.IdGeneratorStrategy; import javax.jdo.annotations.PersistenceCapable; import javax.jdo.annotations.Persistent; import javax.jdo.annotations.PrimaryKey; import com.google.gwt.user.client.rpc.IsSerializable; @PersistenceCapable public class ChatInfo implements Serializable, IsSerializable{ @PrimaryKey @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY) private Long topicId; @Persistent private String chatTopic; @Persistent private ArrayList messages = new ArrayList(); @Persistent private boolean isFirstPost; public ChatInfo() { } public Long getTopicId() { return topicId; } public void setTopicId(Long topicId) { this.topicId = topicId; } public String getChatTopic() { return chatTopic; } public void setChatTopic(String chatTopic) { this.chatTopic = chatTopic; } public ArrayList getMessages() { return messages; } public void addMessage(String newMsg) { messages.add(newMsg); } public boolean isFirstPost() { return isFirstPost; } public void setFirstPost(boolean isFirstPost) { this.isFirstPost = isFirstPost; } } Method in db class: @Transactional public ChatInfo[] getAllChat() { PersistenceManager pm = PMF.get().getPersistenceManager(); List chats = null; ChatInfo[] infos = null; String query = "select from " + ChatInfo.class.getName(); try{ chats = (List) pm.newQuery(query).execute(); infos = new ChatInfo[chats.size()]; for(int i=0;i } It is a bit strange because earlier I was able to insert and retrieve the data but it now throwing an exception. On searching the web I could find that I need to convert the Arraylist from some DataNucleus type to java util but not sure how to do that.

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  • Java :Interface for this code

    - by ibrahim
    Please i neeed help to make interface for this code: package com.ejada.alinma.edh.xsdtransform; import java.io.File; import java.io.FileReader; import java.io.FileWriter; import java.io.StringWriter; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.HashMap; import java.util.Iterator; import java.util.Properties; import java.util.StringTokenizer; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import javax.xml.transform.Result; import javax.xml.transform.Source; import javax.xml.transform.Transformer; import javax.xml.transform.TransformerFactory; import javax.xml.transform.dom.DOMSource; import javax.xml.transform.stream.StreamResult; /*import org.apache.log4j.Logger;*/ import org.apache.log4j.PropertyConfigurator; import org.w3c.dom.Document; import org.w3c.dom.DocumentFragment; import org.w3c.dom.Element; import org.w3c.dom.Node; import org.w3c.dom.NodeList; import com.sun.org.apache.xml.internal.serialize.OutputFormat; import com.sun.org.apache.xml.internal.serialize.XMLSerializer; /** * An XSD Transformer that replaces the "name" attribute's value in T24 XSDs * with the "shortname" attribute's value * * @author ahusseiny * */ public class XSDTransformer { /** * constants representing the XSD tags and attributes' names used in the parse process */ public static final String TAG_SCHEMA = "xsd:schema"; public static final String TAG_TEXT = "#text"; public static final String TAG_COMPLEX_TYPE = "xsd:complexType"; public static final String TAG_SIMPLE_TYPE = "xsd:simpleType"; public static final String TAG_SEQUENCE = "xsd:sequence"; public static final String TAG_ATTRIBUTE = "xsd:attribute"; public static final String TAG_ELEMENT = "xsd:element"; public static final String TAG_ANNOTATION = "xsd:annotation"; public static final String TAG_APP_INFO = "xsd:appinfo"; public static final String TAG_HAS_PROPERTY = "xsd:hasProperty"; public static final String TAG_RESTRICTION = "xsd:restriction"; public static final String TAG_MAX_LENGTH = "xsd:maxLength"; public static final String ATTR_NAME = "name"; public static final String ATTR_VALUE = "value"; public static final String ATTR_TYPE = "type"; public static final String ATTR_MIXED = "mixed"; public static final String ATTR_USE = "use"; public static final String ATTR_REF = "ref"; public static final String ATTR_MAX_OCCURS = "maxOccurs"; /** * constants representing specific XSD attributes' values used in the parse process */ public static final String FIELD_TAG = "fieldtag"; public static final String FIELD_NUMBER = "fieldnumber"; public static final String FIELD_DATA_TYPE = "fielddatatype"; public static final String FIELD_FMT = "fieldfmt"; public static final String FIELD_LEN = "fieldlen"; public static final String FIELD_INPUT_LEN = "fieldinputlen"; public static final String FIELD_GROUP_NUMBER = "fieldgroupnumber"; public static final String FIELD_MV_GROUP_NUMBER = "fieldmvgroupnumber"; public static final String FIELD_SHORT_NAME = "fieldshortname"; public static final String FIELD_NAME = "fieldname"; public static final String FIELD_COLUMN_NAME = "fieldcolumnname"; public static final String FIELD_GROUP_NAME = "fieldgroupname"; public static final String FIELD_MV_GROUP_NAME = "fieldmvgroupname"; public static final String FIELD_JUSTIFICATION = "fieldjustification"; public static final String FIELD_TYPE = "fieldtype"; public static final String FIELD_SINGLE_OR_MULTI = "singleormulti"; public static final String DELIMITER_COLUMN_TYPE = "#"; public static final String COLUMN_FK_ROW = "FK_ROW"; public static final String COLUMN_XPK_ROW = "XPK_ROW"; public static final int SQL_VIEW_MULTI = 1; public static final int SQL_VIEW_SINGLE = 2; public static final String DATA_TYPE_XSD_NUMERIC = "numeric"; public static final String DATA_TYPE_XSD_DECIMAL = "decimal"; public static final String DATA_TYPE_XSD_STRING = "string"; public static final String DATA_TYPE_XSD_DATE = "date"; /** * application configuration properties */ public static final String PROP_LOG4J_CONFIG_FILE = "log4j_config"; public static final String PROP_MAIN_VIEW_NAME_SINGLE = "view_name_single"; public static final String PROP_MAIN_VIEW_NAME_MULTI = "view_name_multi"; public static final String PROP_MAIN_TABLE_NAME = "main_edh_table_name"; public static final String PROP_SUB_TABLE_PREFIX = "sub_table_prefix"; public static final String PROP_SOURCE_XSD_FULLNAME = "source_xsd_fullname"; public static final String PROP_RESULTS_PATH = "results_path"; public static final String PROP_NEW_XSD_FILENAME = "new_xsd_filename"; public static final String PROP_CSV_FILENAME = "csv_filename"; /** * static holders for application-level utilities */ private static Properties appProps; private static Logger appLogger; /** * */ private StringBuffer sqlViewColumnsSingle = null; private StringBuffer sqlViewSelectSingle = null; private StringBuffer columnsCSV = null; private ArrayList<String> singleValueTableColumns = null; private HashMap<String, String> multiValueTablesSQL = null; private HashMap<Object, HashMap<String, Object>> groupAttrs = null; public XSDTransformer(String appConfigPropsPath) { if (appProps == null) { appProps = new Properties(); } try { init(appConfigPropsPath); } catch (Exception e) { appLogger.error(e.getMessage()); } } /** * initialization */ private void init(String appConfigPropsPath) throws Exception { // init the properties object FileReader in = new FileReader(appConfigPropsPath); appProps.load(in); // init the logger if ((appProps.getProperty(XSDTransformer.PROP_LOG4J_CONFIG_FILE) != null) && (!appProps.getProperty(XSDTransformer.PROP_LOG4J_CONFIG_FILE).equals(""))) { PropertyConfigurator.configure(appProps.getProperty(XSDTransformer.PROP_LOG4J_CONFIG_FILE)); if (appLogger == null) { appLogger = Logger.getLogger(XSDTransformer.class.getName()); } appLogger.info("Application initialization successful."); } sqlViewColumnsSingle = new StringBuffer(); sqlViewSelectSingle = new StringBuffer(); columnsCSV = new StringBuffer(XSDTransformer.FIELD_TAG + "," + XSDTransformer.FIELD_NUMBER + "," + XSDTransformer.FIELD_DATA_TYPE + "," + XSDTransformer.FIELD_FMT + "," + XSDTransformer.FIELD_LEN + "," + XSDTransformer.FIELD_INPUT_LEN + "," + XSDTransformer.FIELD_GROUP_NUMBER + "," + XSDTransformer.FIELD_MV_GROUP_NUMBER + "," + XSDTransformer.FIELD_SHORT_NAME + "," + XSDTransformer.FIELD_NAME + "," + XSDTransformer.FIELD_COLUMN_NAME + "," + XSDTransformer.FIELD_GROUP_NAME + "," + XSDTransformer.FIELD_MV_GROUP_NAME + "," + XSDTransformer.FIELD_JUSTIFICATION + "," + XSDTransformer.FIELD_TYPE + "," + XSDTransformer.FIELD_SINGLE_OR_MULTI + System.getProperty("line.separator")); singleValueTableColumns = new ArrayList<String>(); singleValueTableColumns.add(XSDTransformer.COLUMN_XPK_ROW + XSDTransformer.DELIMITER_COLUMN_TYPE + XSDTransformer.DATA_TYPE_XSD_NUMERIC); multiValueTablesSQL = new HashMap<String, String>(); groupAttrs = new HashMap<Object, HashMap<String, Object>>(); } /** * initialize the <code>DocumentBuilder</code> and read the XSD file * * @param docPath * @return the <code>Document</code> object representing the read XSD file */ private Document retrieveDoc(String docPath) { Document xsdDoc = null; File file = new File(docPath); try { DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder(); xsdDoc = builder.parse(file); } catch (Exception e) { appLogger.error(e.getMessage()); } return xsdDoc; } /** * perform the iteration/modification on the document * iterate to the level which contains all the elements (Single-Value, and Groups) and start processing each * * @param xsdDoc * @return */ private Document transformDoc(Document xsdDoc) { ArrayList<Object> newElementsList = new ArrayList<Object>(); HashMap<String, Object> docAttrMap = new HashMap<String, Object>(); Element sequenceElement = null; Element schemaElement = null; // get document's root element NodeList nodes = xsdDoc.getChildNodes(); for (int i = 0; i < nodes.getLength(); i++) { if (XSDTransformer.TAG_SCHEMA.equals(nodes.item(i).getNodeName())) { schemaElement = (Element) nodes.item(i); break; } } // process the document (change single-value elements, collect list of new elements to be added) for (int i1 = 0; i1 < schemaElement.getChildNodes().getLength(); i1++) { Node childLevel1 = (Node) schemaElement.getChildNodes().item(i1); // <ComplexType> element if (childLevel1.getNodeName().equals(XSDTransformer.TAG_COMPLEX_TYPE)) { // first, get the main attributes and put it in the csv file for (int i6 = 0; i6 < childLevel1.getChildNodes().getLength(); i6++) { Node child6 = childLevel1.getChildNodes().item(i6); if (XSDTransformer.TAG_ATTRIBUTE.equals(child6.getNodeName())) { if (child6.getAttributes().getNamedItem(XSDTransformer.ATTR_NAME) != null) { String attrName = child6.getAttributes().getNamedItem(XSDTransformer.ATTR_NAME).getNodeValue(); if (((Element) child6).getElementsByTagName(XSDTransformer.TAG_SIMPLE_TYPE).getLength() != 0) { Node simpleTypeElement = ((Element) child6).getElementsByTagName(XSDTransformer.TAG_SIMPLE_TYPE) .item(0); if (((Element) simpleTypeElement).getElementsByTagName(XSDTransformer.TAG_RESTRICTION).getLength() != 0) { Node restrictionElement = ((Element) simpleTypeElement).getElementsByTagName( XSDTransformer.TAG_RESTRICTION).item(0); if (((Element) restrictionElement).getElementsByTagName(XSDTransformer.TAG_MAX_LENGTH).getLength() != 0) { Node maxLengthElement = ((Element) restrictionElement).getElementsByTagName( XSDTransformer.TAG_MAX_LENGTH).item(0); HashMap<String, String> elementProperties = new HashMap<String, String>(); elementProperties.put(XSDTransformer.FIELD_TAG, attrName); elementProperties.put(XSDTransformer.FIELD_NUMBER, "0"); elementProperties.put(XSDTransformer.FIELD_DATA_TYPE, XSDTransformer.DATA_TYPE_XSD_STRING); elementProperties.put(XSDTransformer.FIELD_FMT, ""); elementProperties.put(XSDTransformer.FIELD_NAME, attrName); elementProperties.put(XSDTransformer.FIELD_SHORT_NAME, attrName); elementProperties.put(XSDTransformer.FIELD_COLUMN_NAME, attrName); elementProperties.put(XSDTransformer.FIELD_SINGLE_OR_MULTI, "S"); elementProperties.put(XSDTransformer.FIELD_LEN, maxLengthElement.getAttributes().getNamedItem( XSDTransformer.ATTR_VALUE).getNodeValue()); elementProperties.put(XSDTransformer.FIELD_INPUT_LEN, maxLengthElement.getAttributes() .getNamedItem(XSDTransformer.ATTR_VALUE).getNodeValue()); constructElementRow(elementProperties); // add the attribute as a column in the single-value table singleValueTableColumns.add(attrName + XSDTransformer.DELIMITER_COLUMN_TYPE + XSDTransformer.DATA_TYPE_XSD_STRING + XSDTransformer.DELIMITER_COLUMN_TYPE + maxLengthElement.getAttributes().getNamedItem(XSDTransformer.ATTR_VALUE).getNodeValue()); // add the attribute as a column in the single-values view sqlViewColumnsSingle.append(System.getProperty("line.separator") + attrName + ", "); sqlViewSelectSingle.append(System.getProperty("line.separator") + attrName + ", "); appLogger.debug("added attribute: " + attrName); } } } } } } // now, loop on the elements and process them for (int i2 = 0; i2 < childLevel1.getChildNodes().getLength(); i2++) { Node childLevel2 = (Node) childLevel1.getChildNodes().item(i2); // <Sequence> element if (childLevel2.getNodeName().equals(XSDTransformer.TAG_SEQUENCE)) { sequenceElement = (Element) childLevel2; for (int i3 = 0; i3 < childLevel2.getChildNodes().getLength(); i3++) { Node childLevel3 = (Node) childLevel2.getChildNodes().item(i3); // <Element> element if (childLevel3.getNodeName().equals(XSDTransformer.TAG_ELEMENT)) { // check if single element or group if (isGroup(childLevel3)) { processGroup(childLevel3, true, null, docAttrMap, xsdDoc, newElementsList); // insert a new comment node with the contents of the group tag sequenceElement.insertBefore(xsdDoc.createComment(serialize(childLevel3)), childLevel3); // remove the group tag sequenceElement.removeChild(childLevel3); } else { processElement(childLevel3); } } } } } } } // add new elements // this step should be after finishing processing the whole document. when you add new elements to the document // while you are working on it, those new elements will be included in the processing. We don't need that! for (int i = 0; i < newElementsList.size(); i++) { sequenceElement.appendChild((Element) newElementsList.get(i)); } // write the new required attributes to the schema element Iterator<String> attrIter = docAttrMap.keySet().iterator(); while(attrIter.hasNext()) { Element attr = (Element) docAttrMap.get(attrIter.next()); Element newAttrElement = xsdDoc.createElement(XSDTransformer.TAG_ATTRIBUTE); appLogger.debug("appending attr. [" + attr.getAttribute(XSDTransformer.ATTR_NAME) + "]..."); newAttrElement.setAttribute(XSDTransformer.ATTR_NAME, attr.getAttribute(XSDTransformer.ATTR_NAME)); newAttrElement.setAttribute(XSDTransformer.ATTR_TYPE, attr.getAttribute(XSDTransformer.ATTR_TYPE)); schemaElement.appendChild(newAttrElement); } return xsdDoc; } /** * check if the <code>element</code> sent is single-value element or group * element. the comparison depends on the children of the element. if found one of type * <code>ComplexType</code> then it's a group element, and if of type * <code>SimpleType</code> then it's a single-value element * * @param element * @return <code>true</code> if the element is a group element, * <code>false</code> otherwise */ private boolean isGroup(Node element) { for (int i = 0; i < element.getChildNodes().getLength(); i++) { Node child = (Node) element.getChildNodes().item(i); if (child.getNodeName().equals(XSDTransformer.TAG_COMPLEX_TYPE)) { // found a ComplexType child (Group element) return true; } else if (child.getNodeName().equals(XSDTransformer.TAG_SIMPLE_TYPE)) { // found a SimpleType child (Single-Value element) return false; } } return false; /* String attrName = null; if (element.getAttributes() != null) { Node attribute = element.getAttributes().getNamedItem(XSDTransformer.ATTR_NAME); if (attribute != null) { attrName = attribute.getNodeValue(); } } if (attrName.startsWith("g")) { // group element return true; } else { // single element return false; } */ } /** * process a group element. recursively, process groups till no more group elements are found * * @param element * @param isFirstLevelGroup * @param attrMap * @param docAttrMap * @param xsdDoc * @param newElementsList */ private void processGroup(Node element, boolean isFirstLevelGroup, Node parentGroup, HashMap<String, Object> docAttrMap, Document xsdDoc, ArrayList<Object> newElementsList) { String elementName = null; HashMap<String, Object> groupAttrMap = new HashMap<String, Object>(); HashMap<String, Object> parentGroupAttrMap = new HashMap<String, Object>(); if (element.getAttributes().getNamedItem(XSDTransformer.ATTR_NAME) != null) { elementName = element.getAttributes().getNamedItem(XSDTransformer.ATTR_NAME).getNodeValue(); } appLogger.debug("processing group [" + elementName + "]..."); // get the attributes if a non-first-level-group // attributes are: groups's own attributes + parent group's attributes if (!isFirstLevelGroup) { // get the current element (group) attributes for (int i1 = 0; i1 < element.getChildNodes().getLength(); i1++) { if (XSDTransformer.TAG_COMPLEX_TYPE.equals(element.getChildNodes().item(i1).getNodeName())) { Node complexTypeNode = element.getChildNodes().item(i1); for (int i2 = 0; i2 < complexTypeNode.getChildNodes().getLength(); i2++) { if (XSDTransformer.TAG_ATTRIBUTE.equals(complexTypeNode.getChildNodes().item(i2).getNodeName())) { appLogger.debug("add group attr: " + ((Element) complexTypeNode.getChildNodes().item(i2)).getAttribute(XSDTransformer.ATTR_NAME)); groupAttrMap.put(((Element) complexTypeNode.getChildNodes().item(i2)).getAttribute(XSDTransformer.ATTR_NAME), complexTypeNode.getChildNodes().item(i2)); docAttrMap.put(((Element) complexTypeNode.getChildNodes().item(i2)).getAttribute(XSDTransformer.ATTR_NAME), complexTypeNode.getChildNodes().item(i2)); } } } } // now, get the parent's attributes parentGroupAttrMap = groupAttrs.get(parentGroup); if (parentGroupAttrMap != null) { Iterator<String> iter = parentGroupAttrMap.keySet().iterator(); while (iter.hasNext()) { String attrName = iter.next(); groupAttrMap.put(attrName, parentGroupAttrMap.get(attrName)); } } // put the attributes in the attributes map groupAttrs.put(element, groupAttrMap); } for (int i = 0; i < element.getChildNodes().getLength(); i++) { Node childLevel1 = (Node) element.getChildNodes().item(i); if (childLevel1.getNodeName().equals(XSDTransformer.TAG_COMPLEX_TYPE)) { for (int j = 0; j < childLevel1.getChildNodes().getLength(); j++) { Node childLevel2 = (Node) childLevel1.getChildNodes().item(j); if (childLevel2.getNodeName().equals(XSDTransformer.TAG_SEQUENCE)) { for (int k = 0; k < childLevel2.getChildNodes().getLength(); k++) { Node childLevel3 = (Node) childLevel2.getChildNodes().item(k); if (childLevel3.getNodeName().equals(XSDTransformer.TAG_ELEMENT)) { // check if single element or group if (isGroup(childLevel3)) { // another group element.. // unfortunately, a recursion is // needed here!!! :-( processGroup(childLevel3, false, element, docAttrMap, xsdDoc, newElementsList); } else { // reached a single-value element.. copy it under the // main sequence and apply the name-shorname // replacement processGroupElement(childLevel3, element, isFirstLevelGroup, xsdDoc, newElementsList); } } } } } } } appLogger.debug("finished processing group [" + elementName + "]."); } /** * process the sent <code>element</code> to extract/modify required * information: * 1. replace the <code>name</code> attribute with the <code>shortname</code>. * * @param element */ private void processElement(Node element) { String fieldShortName = null; String fieldColumnName = null; String fieldDataType = null; String fieldFormat = null; String fieldInputLength = null; String elementName = null; HashMap<String, String> elementProperties = new HashMap<String, String>(); if (element.getAttributes().getNamedItem(XSDTransformer.ATTR_NAME) != null) { elementName = element.getAttributes().getNamedItem(XSDTransformer.ATTR_NAME).getNodeValue(); } appLogger.debug("processing element [" + elementName + "]..."); for (int i = 0; i < element.getChildNodes().getLength(); i++) { Node childLevel1 = (Node) element.getChildNodes().item(i); if (childLevel1.getNodeName().equals(XSDTransformer.TAG_ANNOTATION)) { for (int j = 0; j < childLevel1.getChildNodes().getLength(); j++) { Node childLevel2 = (Node) childLevel1.getChildNodes().item(j); if (childLevel2.getNodeName().equals(XSDTransformer.TAG_APP_INFO)) { for (int k = 0; k < childLevel2.getChildNodes().getLength(); k++) { Node childLevel3 = (Node) childLevel2.getChildNodes().item(k); if (childLevel3.getNodeName().equals(XSDTransformer.TAG_HAS_PROPERTY)) { if (childLevel3.getAttributes() != null) { String attrName = null; Node attribute = childLevel3.getAttributes().getNamedItem(XSDTransformer.ATTR_NAME); if (attribute != null) { attrName = attribute.getNodeValue(); elementProperties.put(attrName, childLevel3.getAttributes().getNamedItem(XSDTransformer.ATTR_VALUE) .getNodeValue()); if (attrName.equals(XSDTransformer.FIELD_SHORT_NAME)) { fieldShortName = childLevel3.getAttributes().getNamedItem(XSDTransformer.ATTR_VALUE) .getNodeValue(); } else if (attrName.equals(XSDTransformer.FIELD_COLUMN_NAME)) { fieldColumnName = childLevel3.getAttributes().getNamedItem(XSDTransformer.ATTR_VALUE) .getNodeValue(); } else if (attrName.equals(XSDTransformer.FIELD_DATA_TYPE)) { fieldDataType = childLevel3.getAttributes().getNamedItem(XSDTransformer.ATTR_VALUE) .getNodeValue(); } else if (attrName.equals(XSDTransformer.FIELD_FMT)) { fieldFormat = childLevel3.getAttributes().getNamedItem(XSDTransformer.ATTR_VALUE) .getNodeValue(); } else if (attrName.equals(XSDTransformer.FIELD_INPUT_LEN)) { fieldInputLength = childLevel3.getAttributes().getNamedItem(XSDTransformer.ATTR_VALUE) .getNodeValue(); } } } } } } } } } if (element.getAttributes().getNamedItem(XSDTransformer.ATTR_NAME) != null) { element.getAttributes().getNamedItem(XSDTransformer.ATTR_NAME).setNodeValue(fieldShortName); } sqlViewColumnsSingle.append(System.getProperty("line.separator") + fieldColumnName + ", "); sqlViewSelectSingle.append(System.getProperty("line.separator") + fieldShortName + ", "); elementProperties.put(XSDTransformer.FIELD_SINGLE_OR_MULTI, "S"); constructElementRow(elementProperties); singleValueTableColumns.add(fieldShortName + XSDTransformer.DELIMITER_COLUMN_TYPE + fieldDataType + fieldFormat + XSDTransformer.DELIMITER_COLUMN_TYPE + fieldInputLength); appLogger.debug("finished processing element [" + elementName + "]."); } /** * process the sent <code>element</code> to extract/modify required * information: * 1. copy the element under the main sequence * 2. replace the <code>name</code> attribute with the <code>shortname</code>. * 3. add the attributes of the parent groups (if non-first-level-group) * * @param element */ private void processGroupElement(Node element, Node parentGroup, boolean isFirstLevelGroup, Document xsdDoc, ArrayList<Object> newElementsList) { String fieldShortName = null; String fieldColumnName = null; String fieldDataType = null; String fieldFormat = null; String fieldInputLength = null; String elementName = null; Element newElement = null; HashMap<String, String> elementProperties = new HashMap<String, String>(); ArrayList<String> tableColumns = new ArrayList<String>(); HashMap<String, Object> groupAttrMap = null; if (element.getAttributes().getNamedItem(XSDTransformer.ATTR_NAME) != null) { elementName = element.getAttributes().getNamedItem(XSDTransformer.ATTR_NAME).getNodeValue(); } appLogger.debug("processing element [" + elementName + "]..."); // 1. copy the element newElement = (Element) element.cloneNode(true); newElement.setAttribute(XSDTransformer.ATTR_MAX_OCCURS, "unbounded"); // 2. if non-first-level-group, replace the element's SimpleType tag with a ComplexType tag if (!isFirstLevelGroup) { if (((Element) newElement).getElementsByTagName(XSDTransformer.TAG_SIMPLE_TYPE).getLength() != 0) { // there should be only one tag of SimpleType Node simpleTypeNode = ((Element) newElement).getElementsByTagName(XSDTransformer.TAG_SIMPLE_TYPE).item(0); // create the new ComplexType element Element complexTypeNode = xsdDoc.createElement(XSDTransformer.TAG_COMPLEX_TYPE); complexTypeNode.setAttribute(XSDTransformer.ATTR_MIXED, "true"); // get the list of attributes for the parent group groupAttrMap = groupAttrs.get(parentGroup); Iterator<String> attrIter = groupAttrMap.keySet().iterator(); while(attrIter.hasNext()) { Element attr = (Element) groupAttrMap.get(attrIter.next()); Element newAttrElement = xsdDoc.createElement(XSDTransformer.TAG_ATTRIBUTE); appLogger.debug("adding attr. 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  • Eclipselink factory.createEntityManager() stalls with more than one instance running

    - by Raven
    Hi, with my RCP program I have the problem that I want to have more than one copy running on my PC. The first instance runs very good. If I start the second instance, everything is fine until I want to access the database. Using this code: .. Map properties = new HashMap(); properties.put("javax.persistence.jdbc.driver", dbDriver); properties.put("javax.persistence.jdbc.url", dbUrl); properties.put("javax.persistence.jdbc.user", dbUser); properties.put("javax.persistence.jdbc.password", dbPass); try { factory = Persistence.createEntityManagerFactory( PERSISTENCE_UNIT_NAME, properties); } catch (Exception e) { System.out.println(e); } em=factory.createEntityManager(); // the second instance stops here ... with an persistence.xml of <?xml version="1.0" encoding="UTF-8"?> <persistence version="1.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"> <persistence-unit name="default"> <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider> <class>myclasshere</class> <properties> <property name="eclipselink.ddl-generation" value="create-tables" /> <property name="eclipselink.ddl-generation.output-mode" value="database" /> <property name="eclipselink.jdbc.read-connections.min" value="1" /> <property name="eclipselink.jdbc.write-connections.min" value="1" /> <property name="eclipselink.jdbc.batch-writing" value="JDBC" /> <property name="eclipselink.logging.level" value="SEVERE" /> <property name="eclipselink.logging.timestamp" value="false" /> <property name="eclipselink.logging.session" value="false" /> <property name="eclipselink.logging.thread" value="false" /> </properties> </persistence-unit> </persistence> The program stalls / does not continue in the second instance beyond this step: em=factory.createEntityManager(); Debugging the program step by step showed me, that nothing happens at this point. Perhaps the program runs into a timeout. I havent been wainting for more than 1 minute.... Do you have any clues what might cause this stall might?

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  • Why declare "private List contactInfos" without a generic ("private List <ContactInfo> contactInfos"

    - by g_imp
    In this example from the App Engine docs, why does the example declare contactInfos like this (no Generics): import javax.jdo.annotations.Element; // ... @Persistent @Element(dependent = "true") private List contactInfos; instead of like this, using a Generic: import javax.jdo.annotations.Element; // ... @Persistent @Element(dependent = "true") private List <ContactInfo> contactInfos;

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  • NSTimer timestamp timeinterval question

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    I have the following code: [NSTimer scheduledTimerWithTimeInterval:0.5 target:self selector:@selector(timerCount:) userInfo:nil repeats:YES]; -(void)timerCount:(NSTimer *)timer { NSTimeInterval dt = [timer timeInterval]; // do something } The NSTimeInterval I got will be 0.5, the time interval I've put on scheduledTimerWithInterval, this means the timerCount will be called each 0.5 seconds. But I now that there are some stuff as timeStamps, and I want to know if the NSTimer will call the timerCount method in PRECISELY 0.5 seconds each time.

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  • Jquery hasClass conditional not working

    - by Wade D Ouellet
    Hey, I have my site going here: http://www.treethink.com I am trying to make it so when a navigation item is clicked, it retracts the news ticker on the right and then doesn't run any of the extracting/timer functions anymore. I got it to retract but it still extracts. How I am doing it is I am adding a "noTicker" class with the nav buttons and removing it with colorbox's close button. The function runs on the page initially and if there isn't a "noTicker" class it runs the news ticker as planned. When a nav or close button is clicked it runs the function again which checks again to see if it has that class. So if it has the class it should retract (which it is so that must mean it's adding the class properly) and then not run any of the timer functions, but it still runs the timer functions for some reason. Here is my jQuery. /* Initially hide all news items */ $('#ticker1').hide(); $('#ticker2').hide(); $('#ticker3').hide(); var randomNum = Math.floor(Math.random()*3); /* Pick random number */ newsTicker(); function newsTicker() { if (!$("#ticker").hasClass("noTicker")) { $("#ticker").oneTime(2000,function(i) { /* Do the first pull out once */ $('div#ticker div:eq(' + randomNum + ')').show(); /* Select div with random number */ $("#ticker").animate({right: "0"}, {duration: 800 }); /* Pull out ticker with random div */ }); $("#ticker").oneTime(15000,function(i) { /* Do the first retract once */ $("#ticker").animate({right: "-450"}, {duration: 800}); /* Retract ticker */ $("#ticker").oneTime(1000,function(i) { /* Afterwards */ $('div#ticker div:eq(' + (randomNum) + ')').hide(); /* Hide that div */ }); }); $("#ticker").everyTime(16500,function(i) { /* Everytime timer gets to certain point */ /* Show next div */ randomNum = (randomNum+1)%3; $('div#ticker div:eq(' + (randomNum) + ')').show(); $("#ticker").animate({right: "0"}, {duration: 800}); /* Pull out right away */ $("#ticker").oneTime(15000,function(i) { /* Afterwards */ $("#ticker").animate({right: "-450"}, {duration: 800});/* Retract ticker */ }); $("#ticker").oneTime(16000,function(i) { /* Afterwards */ /* Hide all divs */ $('#ticker1').hide(); $('#ticker2').hide(); $('#ticker3').hide(); }); }); } else { $("#ticker").animate({right: "-450"}, {duration: 800}); /* Retract ticker */ $("#ticker").oneTime(1000,function(i) { /* Afterwards */ $('div#ticker div:eq(' + (randomNum) + ')').hide(); /* Hide that div */ }); } } /* when nav item is clicked re-run news ticker function but give it new class to prevent activity */ $("#nav li").click(function() { $("#ticker").addClass("noTicker"); newsTicker(); }); /* when close button is clicked re-run news ticker function but take away new class so activity can start again */ $("#cboxClose").click(function() { $("#ticker").removeClass("noTicker"); newsTicker(); }); Thanks, Wade

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  • Eclipse + Android + JUnit test references android.os class = NoClassDefFoundError WTF

    - by Peter Pascale
    I have a custom timer that extends android.os.CountDownTimer. I have a test in the test project (standard Android/Eclipse project config) that tests the custom Timer. When I try to run this test, I get a java.lang.NoClassDefFoundError: android/os/CountDownTimer at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:698) You get the idea. Can I not run code that references android code code in junit test?

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  • Tools for visualizing and implementing elliptic curve cryptography

    - by LL
    I need to create a program which will show how elliptic curve cryptography works. I was considering using Java Swing to create the GUI, but the main problem is what tool to use to plot the elliptic curve itself, and how to integrate that with Java Swing. I would like the plot to be included in the user interface and also allow changes to be made to it. Can you suggest any tools that would help with this?

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  • Maven building for GoogleAppEngine, forced to include JDO libraries?

    - by James.Elsey
    Hi, I'm trying to build my application for GoogleAppEngine using maven. I've added the following to my pom which should "enhance" my classes after building, as suggested on the DataNucleus documentation <plugin> <groupId>org.datanucleus</groupId> <artifactId>maven-datanucleus-plugin</artifactId> <version>1.1.4</version> <configuration> <log4jConfiguration>${basedir}/log4j.properties</log4jConfiguration> <verbose>true</verbose> </configuration> <executions> <execution> <phase>process-classes</phase> <goals> <goal>enhance</goal> </goals> </execution> </executions> </plugin> According to the documentation on GoogleAppEngine, you have the choice to use JDO or JPA, I've chosen to use JPA since I have used it in the past. When I try to build my project (before I upload to GAE) using mvn clean package I get the following output [ERROR] BUILD ERROR [INFO] ------------------------------------------------------------------------ [INFO] Failed to resolve artifact. Missing: ---------- 1) javax.jdo:jdo2-api:jar:2.3-ec Try downloading the file manually from the project website. Then, install it using the command: mvn install:install-file -DgroupId=javax.jdo -DartifactId=jdo2-api -Dversion=2.3-ec -Dpackaging=jar -Dfile=/path/to/file Alternatively, if you host your own repository you can deploy the file there: mvn deploy:deploy-file -DgroupId=javax.jdo -DartifactId=jdo2-api -Dversion=2.3-ec -Dpackaging=jar -Dfile=/path/to/file -Durl=[url] -DrepositoryId=[id] Path to dependency: 1) org.datanucleus:maven-datanucleus-plugin:maven-plugin:1.1.4 2) javax.jdo:jdo2-api:jar:2.3-ec ---------- 1 required artifact is missing. for artifact: org.datanucleus:maven-datanucleus-plugin:maven-plugin:1.1.4 from the specified remote repositories: __jpp_repo__ (file:///usr/share/maven2/repository), DN_M2_Repo (http://www.datanucleus.org/downloads/maven2/), central (http://repo1.maven.org/maven2) [INFO] ------------------------------------------------------------------------ [INFO] For more information, run Maven with the -e switch [INFO] ------------------------------------------------------------------------ [INFO] Total time: 3 seconds [INFO] Finished at: Sat Apr 03 16:02:39 BST 2010 [INFO] Final Memory: 31M/258M [INFO] ------------------------------------------------------------------------ Any ideas why I should get such an error? I've searched through my entire source code and I'm not referencing JDO anywhere, so unless the app engine libraries require it, I'm not sure why I get this message.

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  • Winforms: calling entry form function from a different class

    - by samy
    I'm kinda new to programming and got a question on what is a good practice. I created a class that represents a ball and it has a function Jump() that use 2 timers and get the ball up and down. I know that in Winforms you got to call Invalidate() every time you want to repaint the screen, or part of it. I didn't find a good way to do that, so I reference the form in my class, and called Invalidate() inside my ball class every time I need to repaint to ball movement. (this works but I got a feeling that this is not a good practice) Here is the class I created: public class Ball { public Form1 parent;//----> here is the reference to the form public Rectangle ball; Size size; public Point p; Timer timerBallGoUp = new Timer(); Timer timerBallGDown = new Timer(); public int ballY; public Ball(Size _size, Point _p) { size = _size; p = _p; ball = new Rectangle(p, size); } public void Jump() { ballY = p.Y; timerBallGDown.Elapsed += ballGoDown; timerBallGDown.Interval = 50; timerBallGoUp.Elapsed += ballGoUp; timerBallGoUp.Interval = 50; timerBallGoUp.Start(); } private void ballGoUp(object obj,ElapsedEventArgs e) { p.Y++; ball.Location = new Point(ball.Location.X, p.Y); if (p.Y >= ballY + 50) { timerBallGoUp.Stop(); timerBallGDown.Start(); } parent.Invalidate(); // here i call parent.Invalidate() 1 } private void ballGoDown(object obj, ElapsedEventArgs e) { p.Y--; ball.Location = new Point(ball.Location.X, p.Y); if (p.Y <= ballY) { timerBallGDown.Stop(); timerBallGoUp.Start(); } parent.Invalidate(); // here i call parent.Invalidate() 2 } } I'm wondring if there is a better way to do that? (sorry for my english)

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