--- a/src/org/tmatesoft/hg/util/ByteChannel.java	Tue Feb 22 15:49:26 2011 +0100
+++ b/src/org/tmatesoft/hg/util/ByteChannel.java	Wed Feb 23 22:36:28 2011 +0100
@@ -16,6 +16,7 @@
  */
 package org.tmatesoft.hg.util;
 
+import java.io.IOException;
 import java.nio.ByteBuffer;
 
 /**
@@ -30,5 +31,5 @@
 	// XXX does int return value makes any sense given buffer keeps its read state
 	// not clear what retvalue should be in case some filtering happened inside write - i.e. return
 	// number of bytes consumed in 
-	int write(ByteBuffer buffer) throws Exception /*FIXME Exception type*/;
+	int write(ByteBuffer buffer) throws IOException, CancelledException;
 }