Unit test fix - timeout is not correctly set in parallel execution environment

Change-Id: Id3089c45ad217113f9c01c93e2047114b7fbccb4
diff --git a/core/net/src/main/java/org/onosproject/net/flowobjective/impl/InOrderFlowObjectiveManager.java b/core/net/src/main/java/org/onosproject/net/flowobjective/impl/InOrderFlowObjectiveManager.java
index 457c6e6..f625e9c 100644
--- a/core/net/src/main/java/org/onosproject/net/flowobjective/impl/InOrderFlowObjectiveManager.java
+++ b/core/net/src/main/java/org/onosproject/net/flowobjective/impl/InOrderFlowObjectiveManager.java
@@ -63,7 +63,8 @@
     private final Logger log = LoggerFactory.getLogger(getClass());
 
     // TODO Make queue timeout configurable
-    static int objTimeoutMs = 15000;
+    static final int DEFAULT_OBJ_TIMEOUT = 15000;
+    int objTimeoutMs = DEFAULT_OBJ_TIMEOUT;
 
     private Cache<FilteringObjQueueKey, Objective> filtObjQueueHead;
     private Cache<ForwardingObjQueueKey, Objective> fwdObjQueueHead;