diff --git a/AndroidCameraRecord.java b/AndroidCameraRecord.java
index 138912f57..eb6a10865 100644
--- a/AndroidCameraRecord.java
+++ b/AndroidCameraRecord.java
@@ -183,9 +183,11 @@ public abstract class AndroidCameraRecord {
 
 
 	private static void stopPreview() {
-		camera.setPreviewCallback(null); // TODO check if used whatever the SDK version
-		camera.stopPreview();
-		camera.release();
+		if (camera!=null){
+			camera.setPreviewCallback(null); // TODO check if used whatever the SDK version
+			camera.stopPreview();
+			camera.release();
+		}
 		camera=null;
 		previewStarted = false;
 	}
diff --git a/AndroidVideoWindowImpl.java b/AndroidVideoWindowImpl.java
index ca9968e4c..9f6281bec 100644
--- a/AndroidVideoWindowImpl.java
+++ b/AndroidVideoWindowImpl.java
@@ -80,3 +80,4 @@ public class AndroidVideoWindowImpl  {
 	}
 }
 
+
diff --git a/LinphoneCoreImpl.java b/LinphoneCoreImpl.java
index c67c18dc9..745c8c358 100644
--- a/LinphoneCoreImpl.java
+++ b/LinphoneCoreImpl.java
@@ -200,7 +200,7 @@ class LinphoneCoreImpl implements LinphoneCore {
 			throw new RuntimeException("object already destroyed");
 		}
 	}
-	public void setNetworkStateReachable(boolean isReachable) {
+	public void setNetworkReachable(boolean isReachable) {
 		setNetworkStateReachable(nativePtr,isReachable);
 	}
 	public void setPlaybackGain(float gain) {
@@ -415,8 +415,4 @@ class LinphoneCoreImpl implements LinphoneCore {
 		// TODO Auto-generated method stub
 		return false;
 	}
-	public void setNetworkReachable(boolean isReachable) {
-		// TODO Auto-generated method stub
-		
-	}
 }