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  Screen Black, Background not drawing.  (Read 1138 times)
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Offline Java Dev

Junior Newbie





« Posted 2012-09-12 03:38:11 »

When i run my applet in my browser locally, I get a black screen. When i open my java console, it shows the following:
Quote
Java Plug-in 10.5.0.06
Using JRE version 1.7.0_05-b06 Java HotSpot(TM) Client VM
User home directory = C:\Users\
----------------------------------------------------
c:   clear console window
f:   finalize objects on finalization queue
g:   garbage collect
h:   display this help message
l:   dump classloader list
m:   print memory usage
o:   trigger logging
q:   hide console
r:   reload policy configuration
s:   dump system and deployment properties
t:   dump thread list
v:   dump thread stack
x:   clear classloader cache
0-5: set trace level to <n>
----------------------------------------------------
Exception in thread "AWT-EventQueue-2" java.lang.NullPointerException
   at java.awt.geom.AffineTransform.setTransform(Unknown Source)
   at sun.java2d.SunGraphics2D.setTransform(Unknown Source)
   at Javinoid.update(Javinoid.java:56)
   at sun.awt.RepaintArea.updateComponent(Unknown Source)
   at sun.awt.RepaintArea.paint(Unknown Source)
   at sun.awt.windows.WComponentPeer.handleEvent(Unknown Source)
   at java.awt.Component.dispatchEventImpl(Unknown Source)
   at java.awt.Container.dispatchEventImpl(Unknown Source)
   at java.awt.Component.dispatchEvent(Unknown Source)
   at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
   at java.awt.EventQueue.access$000(Unknown Source)
   at java.awt.EventQueue$3.run(Unknown Source)
   at java.awt.EventQueue$3.run(Unknown Source)
   at java.security.AccessController.doPrivileged(Native Method)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
   at java.awt.EventQueue$4.run(Unknown Source)
   at java.awt.EventQueue$4.run(Unknown Source)
   at java.security.AccessController.doPrivileged(Native Method)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
   at java.awt.EventQueue.dispatchEvent(Unknown Source)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
   at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
   at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
   at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
   at java.awt.EventDispatchThread.run(Unknown Source)
The latest source can be found here. Any assistance would be greatly appreciated.

Sincerely,

Java Dev
Offline ReBirth
« Reply #1 - Posted 2012-09-12 03:41:45 »

This is common problem on basic applet setup (NullPointerException on your Grahics2D/paint method). Just put your main class on pastebin and throw it here (too lazy for zip).

Offline Java Dev

Junior Newbie





« Reply #2 - Posted 2012-09-12 03:49:39 »

This is common problem on basic applet setup (NullPointerException on your Grahics2D/paint method). Just put your main class on pastebin and throw it here (too lazy for zip).
Ok, here you go.

Sincerely,

Java Dev
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Offline GabrielBailey74
« Reply #3 - Posted 2012-09-12 04:06:06 »

Line 56 (NullPointerException at Javinoid.update(Graphics g)):
1  
2  
                // AffineTransform identity == null;
                g2d.setTransform(identity);

Don't think that you've set 'identity' to a value yet  Shocked

1  
identity = g2d.getTransform();

Offline ReBirth
« Reply #4 - Posted 2012-09-12 04:12:40 »


Don't think that you've set 'identity' to a value yet  Shocked
+1

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