Refactor: Tighten method visibility

Change-Id: I0bb311fc8f6e48763ab91bef7cfe401930c7a6a0
diff --git a/core/net/src/main/java/org/onosproject/net/intent/impl/compiler/OpticalCircuitIntentCompiler.java b/core/net/src/main/java/org/onosproject/net/intent/impl/compiler/OpticalCircuitIntentCompiler.java
index 29ba5fb..fa684f5 100644
--- a/core/net/src/main/java/org/onosproject/net/intent/impl/compiler/OpticalCircuitIntentCompiler.java
+++ b/core/net/src/main/java/org/onosproject/net/intent/impl/compiler/OpticalCircuitIntentCompiler.java
@@ -539,7 +539,7 @@
         return flowRule;
     }
 
-    protected OduSignalId buildOduSignalId(OduSignalType ochPortSignalType, Set<TributarySlot> slots) {
+    OduSignalId buildOduSignalId(OduSignalType ochPortSignalType, Set<TributarySlot> slots) {
         int tributaryPortNumber = findFirstTributarySlotIndex(slots);
         int tributarySlotLen = ochPortSignalType.tributarySlots();
         byte[] tributarySlotBitmap = new byte[OduSignalId.TRIBUTARY_SLOT_BITMAP_SIZE];