Removed FireBugs warnings.
diff --git a/src/main/java/net/onrc/onos/ofcontroller/core/internal/TopoLinkServiceImpl.java b/src/main/java/net/onrc/onos/ofcontroller/core/internal/TopoLinkServiceImpl.java
index 7c897d4..5e01578 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/core/internal/TopoLinkServiceImpl.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/core/internal/TopoLinkServiceImpl.java
@@ -75,7 +75,7 @@
 
 	}
 
-	private class ExtractLink implements PipeFunction<PathPipe<Vertex>, Link> {
+	private static class ExtractLink implements PipeFunction<PathPipe<Vertex>, Link> {
 		@Override
 		public Link compute(PathPipe<Vertex> pipe) {
 			long s_dpid = 0;