From 2cca85baec1c4979b4cf3beb80cbab9d8dd89754 Mon Sep 17 00:00:00 2001
From: Bartosz Firyn <bartosz.firyn@alcatel-lucent.com>
Date: Fri, 11 Jan 2013 15:45:53 +0100
Subject: [PATCH] Ignore exception when removing ShutdownHook on shutdown

---
 .../src/main/java/com/github/sarxos/webcam/Webcam.java      | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/webcam-capture/src/main/java/com/github/sarxos/webcam/Webcam.java b/webcam-capture/src/main/java/com/github/sarxos/webcam/Webcam.java
index 72abec5c..f8a64dc0 100644
--- a/webcam-capture/src/main/java/com/github/sarxos/webcam/Webcam.java
+++ b/webcam-capture/src/main/java/com/github/sarxos/webcam/Webcam.java
@@ -587,7 +587,11 @@ protected void dispose() {
 		// hook can be null because there is a possibility that webcam has never
 		// been open and therefore hook was not created
 		if (hook != null) {
-			Runtime.getRuntime().removeShutdownHook(hook);
+			try {
+				Runtime.getRuntime().removeShutdownHook(hook);
+			} catch (IllegalStateException e) {
+				// ignore, it means that shutdown is in progress
+			}
 		}
 
 		open = false;