[Webinar] Streamline your web hosting managementRegister Today

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 578
  • Last Modified:

JNLP error

hello there,

i am trying to run my application using jnlp.but i get this error in the console.i can run the application with jar but with jnlp i get this error.please help.

Exception in thread "Thread-17" java.lang.NullPointerException
      at javax.swing.ImageIcon.<init>(Unknown Source)
      at com.FrmSplash.run(FrmSplash.java:11)
      at java.lang.Thread.run(Unknown Source)
0
zolf
Asked:
zolf
  • 3
  • 2
1 Solution
 
zolfAuthor Commented:

the line 11 is shown below
JLabel SplashLabel = new JLabel(new ImageIcon(ClassLoader.getSystemResource("images/Splash Screen 2.jpg")));
public void run()
	{
		JLabel SplashLabel = new JLabel(new ImageIcon(ClassLoader.getSystemResource("images/Splash Screen 2.jpg")));
		Dimension screen = 	Toolkit.getDefaultToolkit().getScreenSize();
		

Open in new window

0
 
humanonomicsCommented:
it seems, your application is is not picking up the image file and hence "ClassLoader.getSystemResource("images/Splash Screen 2.jpg")" returns null, which results in that exception.
0
 
zolfAuthor Commented:

what do i need to do.please help.below is my jnlp file.the application runs fine using java -jar erp.jar
<?xml version="1.0" encoding="UTF-8"?>
<jnlp spec="1.0+" codebase="file:///C:/JNLP/">
<information>
  <title>Time Check</title>
  <vendor>Java Developer Connection</vendor>
  <homepage href="/jdc" />
  <description>Demonstration of JNLP</description>
</information>
<offline-allowed/>
<security>
  <all-permissions/>
</security>
<resources>
  <j2se version="1.2+" />
  <jar href="erp.jar"/>
  <jar href="looks-2.2.0.jar"/>
  <jar href="sqljdbc.jar"/>
  <jar href="calendar-0.10.jar"/>
  <jar href="commons-collections-3.2.jar"/>
  <jar href="commons-logging-1.1.jar"/>
  <jar href="iText-2.1.3.jar"/>
  <jar href="jasperreports-3.0.0.jar"/>
  <jar href="jcalendar-1.3.2.jar"/>
  <jar href="looks-2.2.0.jar"/>
  <jar href="validation-2.0.1.jar"/>
</resources>
<application-desc main-class="com.MainForm" />
</jnlp>

Open in new window

0
Never miss a deadline with monday.com

The revolutionary project management tool is here!   Plan visually with a single glance and make sure your projects get done.

 
zolfAuthor Commented:

i also removed the space between the image file name, just in case.but no luck
0
 
humanonomicsCommented:
Please give the directory structure
0
 
rrzCommented:
Did you try ?
   ClassLoader cl = this.getClass().getClassLoader();
   Icon icon  = new ImageIcon(cl.getResource("images/SplashScreen2.jpg"));
see
http://java.sun.com/javase/6/docs/technotes/guides/javaws/developersguide/development.html#retrieving
0

Featured Post

The new generation of project management tools

With monday.com’s project management tool, you can see what everyone on your team is working in a single glance. Its intuitive dashboards are customizable, so you can create systems that work for you.

  • 3
  • 2
Tackle projects and never again get stuck behind a technical roadblock.
Join Now