jrviewer hangs ?

[rbojja]

Hi All,

When i try to open the pdf in jasper viewer the below expection is seen and the jviewer hangs/doesnt respond? Can any one tell me where the issue is?

code:

JasperPrint jasperPrint = JasperFillManager.fillReport(masterreport, parameters, conn);
              JasperViewer.viewReport(jasperPrint,false);

Error log:

09/07/10 14:56:14 java.lang.NullPointerException

09/07/10 14:56:14  at net.sf.jasperreports.view.JasperViewer.exitForm(JasperViewer.java:239)

09/07/10 14:56:14  at net.sf.jasperreports.view.JasperViewer$1.windowClosing(JasperViewer.java:198)

09/07/10 14:56:14  at java.awt.Window.processWindowEvent(Window.java:1121)

09/07/10 14:56:14  at javax.swing.JFrame.processWindowEvent(JFrame.java:266)

09/07/10 14:56:14  at java.awt.Window.processEvent(Window.java:1079)

09/07/10 14:56:14  at java.awt.Component.dispatchEventImpl(Component.java:3615)

09/07/10 14:56:14  at java.awt.Container.dispatchEventImpl(Container.java:1627)

09/07/10 14:56:14  at java.awt.Window.dispatchEventImpl(Window.java)

09/07/10 14:56:14  at java.awt.Component.dispatchEvent(Component.java)

09/07/10 14:56:14  at java.awt.EventQueue.dispatchEvent(EventQueue.java:458)

09/07/10 14:56:14  at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:201)

09/07/10 14:56:14  at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)

09/07/10 14:56:14  at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)

09/07/10 14:56:14  at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)

09/07/10 14:56:14  at java.awt.EventDispatchThread.run(EventDispatchThread.java:100)

 

[dayana]

you are not clear.... please attach the jrxml......

[Teodor Danciu]

Hi,

 

What version of JasperReports are you using and how do you use it? I mean, where did you embed the JasperViewer?

We do not see the entire stack trace so we are not sure what triggers the viewer to close.

How do you run your application and what kind of application is it?

 

If it is a Swing desktop application, you should consider embedding the JRViewer component, which is a JPanel, instead of the JasperViewer.

 

Thank you,

Teodor