fix transient test failure

Change-Id: If048603536b95fc6f7e698f1a0899ce46eee6f97
diff --git a/apps/pce/pcerest/src/test/java/org/onosproject/pcerest/PceResourceTest.java b/apps/pce/pcerest/src/test/java/org/onosproject/pcerest/PceResourceTest.java
index 18fa46b..ee651a0 100644
--- a/apps/pce/pcerest/src/test/java/org/onosproject/pcerest/PceResourceTest.java
+++ b/apps/pce/pcerest/src/test/java/org/onosproject/pcerest/PceResourceTest.java
@@ -17,6 +17,7 @@
 
 import org.glassfish.jersey.server.ResourceConfig;
 import org.glassfish.jersey.test.JerseyTest;
+import org.glassfish.jersey.test.TestProperties;
 
 /**
  * Base class for pce rest api tests.  Performs common configuration operations.
@@ -28,5 +29,6 @@
      */
     public PceResourceTest() {
         super(ResourceConfig.forApplicationClass(PceWebApplication.class));
+        set(TestProperties.CONTAINER_PORT, 0);
     }
 }