Add cause to exception being thrown in JavaCV device

sarxos · sarxos · commit 77ec9a271a4a · 2015-07-13T12:12:08.000+02:00
diff --git a/webcam-capture-drivers/driver-javacv/src/main/java/com/github/sarxos/webcam/ds/javacv/JavaCvDevice.java b/webcam-capture-drivers/driver-javacv/src/main/java/com/github/sarxos/webcam/ds/javacv/JavaCvDevice.java
@@ -84,7 +84,7 @@ public BufferedImage getImage() {
 		try {
 			frame = grabber.grab();
 		} catch (Exception e) {
-			throw new WebcamException("OpenCV cannot grab image frame");
+			throw new WebcamException("OpenCV cannot grab image frame", e);
 		}
 		if (frame == null) {
 			throw new WebcamException("OpenCV image frame is null");

Original file line number	Diff line number	Diff line change
`@@ -84,7 +84,7 @@ public BufferedImage getImage() {`
`84`	`84`	`try {`
`85`	`85`	`frame = grabber.grab();`
`86`	`86`	`} catch (Exception e) {`
`87`		`- throw new WebcamException("OpenCV cannot grab image frame");`
	`87`	`+ throw new WebcamException("OpenCV cannot grab image frame", e);`
`88`	`88`	`}`
`89`	`89`	`if (frame == null) {`
`90`	`90`	`throw new WebcamException("OpenCV image frame is null");`