diff options
Diffstat (limited to 'libjava/classpath/java/awt/image/PixelGrabber.java')
| -rw-r--r-- | libjava/classpath/java/awt/image/PixelGrabber.java | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/libjava/classpath/java/awt/image/PixelGrabber.java b/libjava/classpath/java/awt/image/PixelGrabber.java index b576dbfad98..b8ca70c3379 100644 --- a/libjava/classpath/java/awt/image/PixelGrabber.java +++ b/libjava/classpath/java/awt/image/PixelGrabber.java @@ -131,6 +131,9 @@ public class PixelGrabber implements ImageConsumer public PixelGrabber(ImageProducer ip, int x, int y, int w, int h, int pix[], int off, int scansize) { + if (ip == null) + throw new NullPointerException("The ImageProducer must not be null."); + this.ip = ip; this.x = x; this.y = y; @@ -179,6 +182,10 @@ public class PixelGrabber implements ImageConsumer boolean forceRGB) { this.ip = img.getSource(); + + if (this.ip == null) + throw new NullPointerException("The ImageProducer must not be null."); + this.x = x; this.y = y; width = w; @@ -209,7 +216,15 @@ public class PixelGrabber implements ImageConsumer { public void run () { - ip.startProduction (PixelGrabber.this); + try + { + ip.startProduction (PixelGrabber.this); + } + catch (Exception ex) + { + ex.printStackTrace(); + imageComplete(ImageConsumer.IMAGEABORTED); + } } }; grabberThread.start (); @@ -601,7 +616,8 @@ public class PixelGrabber implements ImageConsumer consumerStatus = status; setObserverStatus (); grabbing = false; - ip.removeConsumer (this); + if (ip != null) + ip.removeConsumer (this); notifyAll (); } |
