trouble with read an image - java

I have a problem reading an image, the image is located in the src/iamges/logo.jpg............
JFreeChart jfreechart = ChartFactory.createGanttChart("Actividades", "Actividad", "Fecha", cratedataSet(getListaactividades()));
BufferedImage img = ImageIO.read(new File("/src/demo/logiepn.jpg"));
jfreechart.setBackgroundImage(img);
File chartFile = new File("dynamichart");
ChartUtilities.saveChartAsPNG(chartFile, jfreechart, 720, 400);
chart = new DefaultStreamedContent(new FileInputStream(chartFile), "image/png");
and the error is:
Caused by: javax.imageio.IIOException: Can't read input file!
at javax.imageio.ImageIO.read(ImageIO.java:1275) [rt.jar:1.6.0_21]
at ec.edu.epn.proyectos.backingbean.proyectosAprobados.InformeProycierreproy(proyectosAprobados.java:227) [classes:]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.6.0_21]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [rt.jar:1.6.0_21]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [rt.jar:1.6.0_21]
at java.lang.reflect.Method.invoke(Method.java:597) [rt.jar:1.6.0_21]
at org.apache.el.parser.AstValue.invoke(AstValue.java:264) [jbossweb-7.0.17.Final.jar:]
at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:278) [jbossweb-7.0.17.Final.jar:]
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105) [jsf-impl-2.1.11-jbossorg-3.jar:]
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88) [jboss-jsf-api_2.1_spec-2.0.4.Final.jar:2.0.4.Final]

Your path is wrong, take a look at the answers of this question:
Load Java Image inside package from a class in a different package

Related

Project compiles in intellij but not when exported

So my application runs and functions normally when I run it through intellij, but when I export the application it wont even launch. This is the Stack Trace I get.
Exception in Application start method
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:389)
at com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:328)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:767)
Caused by: java.lang.RuntimeException: Exception in Application start method
at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:917)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$155(LauncherImpl.java:182)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.IllegalStateException: Location is not set.
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2434)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2409)
at application.UIController.start(UIController.java:42)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$162(LauncherImpl.java:863)
at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$175(PlatformImpl.java:326)
at com.sun.javafx.application.PlatformImpl.lambda$null$173(PlatformImpl.java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$174(PlatformImpl.java:294)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$148(WinApplication.java:191)
... 1 more
Exception running application application.UIController
Process finished with exit code 1
This is the code that it is complaining about.
public void start(Stage stage) {
screen = stage;
try {
FXMLLoader loader = new FXMLLoader(UIController.class.getResource("/fxml/LoginFXML.fxml"));
Parent root = loader.load();
loginController = loader.getController();
Scene scene = new Scene(root, 340, 487);
scene.getStylesheets().add(getClass().getResource("/css/application.css").toExternalForm());
screen.setScene(scene);
screen.show();
screen.setResizable(false);
screen.setTitle("Room Booking System");
if (launched.equals(false)) {
launched = true;
Database_Control launchdb = new Database_Control();
launchdb.launch();
}
Rectangle2D screenBounds = Screen.getPrimary().getVisualBounds();
screen.setX((screenBounds.getWidth() - screen.getWidth()) / 2);
screen.setY((screenBounds.getHeight() - screen.getHeight()) / 2);
} catch (IOException e) {
e.printStackTrace();
}
}
It complains about a location not being set, so I tried
FXMLLoader loader = new FXMLLoader(); loader.setLocation(UIController.class.getResource("/fxml/LoginFXML.fxml"));
However it just kept giving me the same problems. Thanks in advance.
My File Structure
https://gyazo.com/cec056fb358f453d32f49676bde12b5d
Location not set errors mean that the compiler could not find the FXML file you're referring to. I do see your FXML file is loginFXML.fxml but you're trying to load the file with a capital L: LoginFXML.fxml. This doesn't seem to have any effect in testing, but perhaps something happens with that when exporting?

JavaFX MediaPlayer throws java.lang.reflect.InvocationTargetException

I've been trying to experiment with the JavaFX MediaPlayer class, and found the following example code in a different thread:
import java.net.URI;
import java.net.URISyntaxException;
import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.media.Media;
import javafx.scene.media.MediaPlayer;
import javafx.scene.media.MediaView;
import javafx.stage.Stage;
public class test extends Application {
#Override
public void start(Stage primaryStage)
{
//Add a scene
Group root = new Group();
Scene scene = new Scene(root, 500, 200);
URI file = null;
try {
file = new URI("/home/thomas/voodoo.mp3");
} catch (URISyntaxException e) {
// TODO Auto-generated catch block
e.printStackTrace();
System.out.println("POOR URI SYNTAX");
}
Media pick = new Media(file.toString());
MediaPlayer player = new MediaPlayer(pick);
player.play();
//Add a mediaView, to display the media. Its necessary !
//This mediaView is added to a Pane
MediaView mediaView = new MediaView(player);
((Group)scene.getRoot()).getChildren().add(mediaView);
//show the stage
primaryStage.setTitle("Media Player");
primaryStage.setScene(scene);
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}
}
I adjusted the file path to point to a real audio file (/home/thomas/voodoo.mp3) and tried running it, but the console output is the following:
Exception in Application start method
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:389)
at com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:328)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:767)
Caused by: java.lang.RuntimeException: Exception in Application start method
at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:917)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$1(LauncherImpl.java:182)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.IllegalArgumentException: uri.getScheme() == null! uri == '/home/thomas/voodoo.mp3'
at com.sun.media.jfxmedia.locator.Locator.<init>(Locator.java:211)
at javafx.scene.media.Media.<init>(Media.java:393)
at test.start(test.java:28)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$8(LauncherImpl.java:863)
at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$7(PlatformImpl.java:326)
at com.sun.javafx.application.PlatformImpl.lambda$null$5(PlatformImpl.java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$6(PlatformImpl.java:294)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
at com.sun.glass.ui.gtk.GtkApplication.lambda$null$5(GtkApplication.java:139)
... 1 more
Exception running application test
Is there something wrong with my setup, or with my code?
Thanks for the help!
EDIT:
Changed to Media pick = new Media(new File("/home/thomas/voodoo.mp3").toURI().toString()); as per Nash's suggestion, but it still doesn't work. The console output is a little different now, though.
Exception in Application start method
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:389)
at com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:328)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:767)
Caused by: java.lang.RuntimeException: Exception in Application start method
at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:917)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$1(LauncherImpl.java:182)
at java.lang.Thread.run(Thread.java:745)
Caused by: MediaException: UNKNOWN : com.sun.media.jfxmedia.MediaException: Could not create player! : com.sun.media.jfxmedia.MediaException: Could not create player!
at javafx.scene.media.MediaException.exceptionToMediaException(MediaException.java:146)
at javafx.scene.media.MediaPlayer.init(MediaPlayer.java:511)
at javafx.scene.media.MediaPlayer.<init>(MediaPlayer.java:414)
at test.start(test.java:20)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$8(LauncherImpl.java:863)
at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$7(PlatformImpl.java:326)
at com.sun.javafx.application.PlatformImpl.lambda$null$5(PlatformImpl.java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$6(PlatformImpl.java:294)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
at com.sun.glass.ui.gtk.GtkApplication.lambda$null$5(GtkApplication.java:139)
... 1 more
Caused by: com.sun.media.jfxmedia.MediaException: Could not create player!
at com.sun.media.jfxmediaimpl.NativeMediaManager.getPlayer(NativeMediaManager.java:274)
at com.sun.media.jfxmedia.MediaManager.getPlayer(MediaManager.java:118)
at javafx.scene.media.MediaPlayer.init(MediaPlayer.java:467)
... 11 more
Exception running application test
The problem is your url /home/thomas/voodoo.mp3 that is not valid, indeed the scheme is missing as described into your error message (uri.getScheme() == null! uri == '/home/thomas/voodoo.mp3'), it should start with file:// as it is a file in your local file system such that it should be file:///home/thomas/voodoo.mp3.
But since it is too error prone to build the URI as you currently do because you must ensure that it is properly URL encoded (spaces should be for example replaced with %20) and you need to provide a valid scheme, you had better to use new File(path).toURI().toString() as proposed by Nash.
Try
Media pick = new Media(new File("/home/thomas/voodoo.mp3").toURI().toString());

Getting java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException, even i implemend serializable [duplicate]

This question already has answers here:
java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException
(2 answers)
Closed 5 years ago.
public static void addToFile(LinkedList<Carowners> carowner)
{
try
{
File file = new File(filename);
FileOutputStream fout= new FileOutputStream(file);
ObjectOutputStream out= new ObjectOutputStream(fout);
out.writeObject(carowner);
out.close();
}
catch(Exception e)
{
e.printStackTrace();
}
}
Hi this is my code.I am getting following error when i am object serialization.I implemented serializable, for the classes.
java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException:
Billing.Person
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:369)
at java.util.LinkedList.readObject(LinkedList.java:1136)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1004)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1872)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1777)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1347)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:369)
at Billing.Carownerslist.<init>(Carownerslist.java:42)
at Billing.Carownerslist.main(Carownerslist.java:253)
Caused by: java.io.NotSerializableException: Billing.Person
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1180)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:346)
at java.util.LinkedList.writeObject(LinkedList.java:1118)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:975)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1480)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1416)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:346)
at Billing.Carownerslist.addToFile(Carownerslist.java:242)
at Billing.Carownerslist.addCompany(Carownerslist.java:160)
at Billing.Carownerslist.main(Carownerslist.java:285)
Exception in thread "main" java.lang.NullPointerException
at Billing.Carownerslist.addCompany(Carownerslist.java:149)
at Billing.Carownerslist.main(Carownerslist.java:278)
Java Result: 1
The exception is in the stream. You have to recreate the stream now that you've made the class Serializable.

what does null entities are not supported by org.hibernate.event.def.EventCache mean?

I am getting the error at the point I try to save an entity. I only get this error when I have booted up my server, not when I run my unit tests using dbunit.
I am trying to save an association. My unit test should be the exact same condition as that which I am encountering when manually testing. I am adding a new entity on one end of the relationship where no relationships existed before.
I am using HSQLDB with the unit tests and the web app is using SQL Server.
The searches I have performed have not proved fruitful. An explanation of the message would prove very useful.
Here is the test case (that works just fine!):
#Test
#DatabaseSetup(value="MobileWebsiteTest.saveMobilewebsiteMobilecolorswatchmapuserdefined_NewUserSwatch.xml", type=DatabaseOperation.REFRESH)
public void saveMobilewebsiteMobilecolorswatchmapuserdefined_NewUserSwatch() {
// given
Integer mobileWebsiteId = 569;
Mobilecolorswatchmapuserdefined expected = MobilecolorswatchmapuserdefinedBuilder.init().build();
// when
Mobilewebsite result = service.saveMobilewebsiteMobilecolorswatchmapuserdefined(mobileWebsiteId, expected);
// then
assertNotNull("The Mobilewebsite user defined swatch should not be null", result.getMobilecolorswatchmapuserdefined());
assertNotNull("The Mobilewebsite user defined swatch id should not be null.", result.getMobilecolorswatchmapuserdefined().getMobileColorSwatchMapUserDefinedId());
assertEquals("The result aside property should be equivalent to the expected aside property.", expected.getAside(), result.getMobilecolorswatchmapuserdefined().getAside());
assertEquals("The result SiteName property should be equivalent to the expected SiteName property.", expected.getSiteName(), result.getMobilecolorswatchmapuserdefined().getSiteName());
}
Here is the service (note: I am currently doing a delete/save under the condition that there is already an association - this should be one-to-one, but is legacy):
#Override
#Transactional
public Mobilewebsite saveMobilewebsiteMobilecolorswatchmapuserdefined(Integer mobileWebsiteId, Mobilecolorswatchmapuserdefined related_swatchmap) {
log.debug("saveMobilewebsiteMobilecolorswatchmapuserdefined(Integer mobileWebsiteId=[" + mobileWebsiteId + "], Mobilecolorswatchmapuserdefined related_swatchmap=[" + related_swatchmap + "])");
Mobilewebsite mobilewebsite = mobilewebsiteDAO.findMobilewebsiteByPrimaryKey(mobileWebsiteId, -1, -1);
Calendar now = Calendar.getInstance();
if (mobilewebsite.getMobilecolorswatchmapuserdefined() != null) {
this.deleteMobilewebsiteMobilecolorswatchmapuserdefined(mobilewebsite.getMobileWebsiteId(), mobilewebsite.getMobilecolorswatchmapuserdefined().getMobileColorSwatchMapUserDefinedId());
}
related_swatchmap.setCreatedDtstamp(now);
related_swatchmap.setLastUpdatedDtstamp(now);
related_swatchmap.addToMobilewebsites(mobilewebsite);
**related_swatchmap = mobilecolorswatchmapuserdefinedDAO.store(related_swatchmap);**
mobilewebsite.setMobilecolorswatchmapuserdefined(related_swatchmap);
mobilewebsite = mobilewebsiteDAO.store(mobilewebsite);
mobilewebsiteDAO.flush();
return mobilewebsite;
}
The stack trace points to the highlighted line above: mobilecolorswatchmapuserdefinedDAO.store(related_swatchmap);.
The stacktrace is:
2012-12-11 15:14:11.192 59464 [http-8080-2] ERROR - Unexpected error occurred
org.apache.wicket.WicketRuntimeException: Method onFormSubmitted of interface org.apache.wicket.markup.html.form.IFormSubmitListener targeted at [ [Component id = form1]] on component [ [Component id = form1]] threw an exception
at org.apache.wicket.RequestListenerInterface.internalInvoke(RequestListenerInterface.java:270)
at org.apache.wicket.RequestListenerInterface.invoke(RequestListenerInterface.java:216)
at org.apache.wicket.request.handler.ListenerInterfaceRequestHandler.invokeListener(ListenerInterfaceRequestHandler.java:248)
at org.apache.wicket.request.handler.ListenerInterfaceRequestHandler.respond(ListenerInterfaceRequestHandler.java:234)
at org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:781)
at org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64)
at org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:255)
at org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:212)
at org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:283)
at org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:185)
at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:241)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:602)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.wicket.RequestListenerInterface.internalInvoke(RequestListenerInterface.java:260)
... 22 more
**Caused by: java.lang.NullPointerException: null entities are not supported by org.hibernate.event.def.EventCache**
at org.hibernate.event.def.EventCache.containsKey(EventCache.java:80)
at org.hibernate.event.def.DefaultMergeEventListener.mergeTransientEntity(DefaultMergeEventListener.java:361)
at org.hibernate.event.def.DefaultMergeEventListener.entityIsTransient(DefaultMergeEventListener.java:303)
at org.hibernate.event.def.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:258)
at org.hibernate.event.def.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:84)
at org.hibernate.impl.SessionImpl.fireMerge(SessionImpl.java:859)
at org.hibernate.impl.SessionImpl.merge(SessionImpl.java:843)
at org.hibernate.impl.SessionImpl.merge(SessionImpl.java:847)
at org.hibernate.ejb.AbstractEntityManagerImpl.merge(AbstractEntityManagerImpl.java:682)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:365)
at $Proxy44.merge(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:240)
at $Proxy44.merge(Unknown Source)
at org.skyway.spring.util.dao.AbstractJpaDao.merge(AbstractJpaDao.java:61)
at org.skyway.spring.util.dao.AbstractJpaDao.store(AbstractJpaDao.java:48)
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.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
at $Proxy76.store(Unknown Source)
**at com.telventdtn.aghostmobile.service.MobilewebsiteServiceImpl.saveMobilewebsiteMobilecolorswatchmapuserdefined(MobilewebsiteServiceImpl.java:342)**
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.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
at $Proxy77.saveMobilewebsiteMobilecolorswatchmapuserdefined(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.wicket.proxy.LazyInitProxyFactory$JdkHandler.invoke(LazyInitProxyFactory.java:416)
at org.apache.wicket.proxy.$Proxy4.saveMobilewebsiteMobilecolorswatchmapuserdefined(Unknown Source)
at com.telventdtn.aghostmobile.ArrangeColorsThemePage$SubmitButtonHandler.onSubmit(ArrangeColorsThemePage.java:126)
at com.telventdtn.aghostmobile.markup.html.form.ObservableButton.notifyObservers(ObservableButton.java:20)
at com.telventdtn.aghostmobile.markup.html.form.ButtonFactory$1.onSubmit(ButtonFactory.java:34)
at org.apache.wicket.markup.html.form.Form.delegateSubmit(Form.java:1151)
at org.apache.wicket.markup.html.form.Form.process(Form.java:834)
at org.apache.wicket.markup.html.form.Form.onFormSubmitted(Form.java:762)
at org.apache.wicket.markup.html.form.Form.onFormSubmitted(Form.java:692)
... 27 more
I have had similar experience wherein the table defined a nullable column, but the domain class marked it as not nullable. An attempt was made to save the object with nulls, and indeed it was persisted, but then failed with that error. Hope this helps.

appengine fileservice using remote api

I am trying to programmatically upload some files to the blobstore and also update something in the datastore. It could be done using a specialized servlet and CURL to do it, but it would be more elegant to use the remote api.
Is it possible to use the file service thru appengine's remote apis?
If yes, why am I getting this exception when executing bos.write(b)?
Thanks
code:
String localFileName = "c:\\actcut fail.jpg";
AppEngineFile aeF = fileService.createNewBlobFile("", "actcutfail.jpg");
FileWriteChannel writeChannel = (FileWriteChannel) fileService.openWriteChannel(aeF, true);
BufferedOutputStream bos = new BufferedOutputStream(Channels.newOutputStream(writeChannel));
FileInputStream fis = new FileInputStream(localFileName);
try {
while (true) {
int b = fis.read();
bos.write(b);
}
} catch (EOFException eofex) {
// end of file reached
} catch (Exception ex) {
ex.printStackTrace();
} finally {
fis.close();
bos.flush();
bos.close();
writeChannel.closeFinally();
System.out.println("uploaded blob file with key=" + fileService.getBlobKey(aeF).getKeyString());
}
exception:
java.io.IOException
at com.google.appengine.api.files.FileServiceImpl.translateException(FileServiceImpl.java:601)
at com.google.appengine.api.files.FileServiceImpl.makeSyncCall(FileServiceImpl.java:574)
at com.google.appengine.api.files.FileServiceImpl.append(FileServiceImpl.java:510)
at com.google.appengine.api.files.FileServiceImpl.append(FileServiceImpl.java:255)
at com.google.appengine.api.files.FileWriteChannelImpl.write(FileWriteChannelImpl.java:52)
at com.google.appengine.api.files.FileWriteChannelImpl.write(FileWriteChannelImpl.java:44)
at java.nio.channels.Channels.write(Channels.java:63)
at java.nio.channels.Channels.access$000(Channels.java:47)
at java.nio.channels.Channels$1.write(Channels.java:134)
at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65)
at java.io.BufferedOutputStream.write(BufferedOutputStream.java:78)
at cri.uploaddevalle.UploadDevalle.main(UploadDevalle.java:61)
Caused by: com.google.apphosting.api.ApiProxy$ApplicationException: ApplicationError: 10: File not opened: /blobstore/writable:GlPgcwTQdPtgYVY_Jpk9hg
at com.google.appengine.api.files.dev.LocalFileService.throwError(LocalFileService.java:206)
at com.google.appengine.api.files.dev.LocalFileService.append(LocalFileService.java:352)
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.appengine.tools.development.ApiProxyLocalImpl$AsyncApiCall.callInternal(ApiProxyLocalImpl.java:498)
at com.google.appengine.tools.development.ApiProxyLocalImpl$AsyncApiCall.call(ApiProxyLocalImpl.java:452)
at com.google.appengine.tools.development.ApiProxyLocalImpl$AsyncApiCall.call(ApiProxyLocalImpl.java:430)
at java.util.concurrent.Executors$PrivilegedCallable$1.run(Executors.java:463)
at java.security.AccessController.doPrivileged(Native Method)
at java.util.concurrent.Executors$PrivilegedCallable.call(Executors.java:460)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
java.io.IOException
at com.google.appengine.api.files.FileServiceImpl.translateException(FileServiceImpl.java:601)
at com.google.appengine.api.files.FileServiceImpl.makeSyncCall(FileServiceImpl.java:574)
at com.google.appengine.api.files.FileServiceImpl.append(FileServiceImpl.java:510)
at com.google.appengine.api.files.FileServiceImpl.append(FileServiceImpl.java:255)
at com.google.appengine.api.files.FileWriteChannelImpl.write(FileWriteChannelImpl.java:52)
at com.google.appengine.api.files.FileWriteChannelImpl.write(FileWriteChannelImpl.java:44)
at java.nio.channels.Channels.write(Channels.java:63)
at java.nio.channels.Channels.access$000(Channels.java:47)
at java.nio.channels.Channels$1.write(Channels.java:134)
at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65)
at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:123)
at cri.uploaddevalle.UploadDevalle.main(UploadDevalle.java:69)
Caused by: com.google.apphosting.api.ApiProxy$ApplicationException: ApplicationError: 10: File not opened: /blobstore/writable:GlPgcwTQdPtgYVY_Jpk9hg
at com.google.appengine.api.files.dev.LocalFileService.throwError(LocalFileService.java:206)
at com.google.appengine.api.files.dev.LocalFileService.append(LocalFileService.java:352)
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.appengine.tools.development.ApiProxyLocalImpl$AsyncApiCall.callInternal(ApiProxyLocalImpl.java:498)
at com.google.appengine.tools.development.ApiProxyLocalImpl$AsyncApiCall.call(ApiProxyLocalImpl.java:452)
at com.google.appengine.tools.development.ApiProxyLocalImpl$AsyncApiCall.call(ApiProxyLocalImpl.java:430)
at java.util.concurrent.Executors$PrivilegedCallable$1.run(Executors.java:463)
at java.security.AccessController.doPrivileged(Native Method)
at java.util.concurrent.Executors$PrivilegedCallable.call(Executors.java:460)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
The File API isn't currently fully supported over remote_api. You should be able to get a file upload URL with it, but you'll need to post to a custom servlet if you want to actually upload files.

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