Use diamond operator

Change-Id: Ic7637e41b9e6a4ac04cd81caf07cea0e7a30909c
diff --git a/pcep/ctl/src/main/java/org/onosproject/pcep/controller/impl/PcepMessageDecoder.java b/pcep/ctl/src/main/java/org/onosproject/pcep/controller/impl/PcepMessageDecoder.java
index e918725..b106589 100644
--- a/pcep/ctl/src/main/java/org/onosproject/pcep/controller/impl/PcepMessageDecoder.java
+++ b/pcep/ctl/src/main/java/org/onosproject/pcep/controller/impl/PcepMessageDecoder.java
@@ -57,7 +57,7 @@
         // a list of the parsed messages to the controller.
         // The performance *may or may not* not be as good as before.
         PcepMessageReader<PcepMessage> reader = PcepFactories.getGenericReader();
-        List<PcepMessage> msgList = new LinkedList<PcepMessage>();
+        List<PcepMessage> msgList = new LinkedList<>();
 
         while (buffer.readableBytes() > 0) {
             PcepMessage message = reader.readFrom(buffer);