Remove use of Guava's deprecated toStringHelper

Change-Id: I264afc337a9f325a23f988a6349a74451910e7d0
diff --git a/utils/jdvue/src/main/java/org/onlab/jdvue/Catalog.java b/utils/jdvue/src/main/java/org/onlab/jdvue/Catalog.java
index 1debdf2..8f611c5 100644
--- a/utils/jdvue/src/main/java/org/onlab/jdvue/Catalog.java
+++ b/utils/jdvue/src/main/java/org/onlab/jdvue/Catalog.java
@@ -15,7 +15,7 @@
 import java.util.Map;
 import java.util.Set;
 
-import static com.google.common.base.Objects.toStringHelper;
+import static com.google.common.base.MoreObjects.toStringHelper;
 
 /**
  * Produces a package & source catalogue.
diff --git a/utils/jdvue/src/main/java/org/onlab/jdvue/Dependency.java b/utils/jdvue/src/main/java/org/onlab/jdvue/Dependency.java
index e767a56..7fc3409 100644
--- a/utils/jdvue/src/main/java/org/onlab/jdvue/Dependency.java
+++ b/utils/jdvue/src/main/java/org/onlab/jdvue/Dependency.java
@@ -2,7 +2,7 @@
 
 import java.util.Objects;
 
-import static com.google.common.base.Objects.toStringHelper;
+import static com.google.common.base.MoreObjects.toStringHelper;
 
 /**
  * Abstraction of a dependency segment.
diff --git a/utils/jdvue/src/main/java/org/onlab/jdvue/DependencyCycle.java b/utils/jdvue/src/main/java/org/onlab/jdvue/DependencyCycle.java
index ced9305..65e3cfb 100644
--- a/utils/jdvue/src/main/java/org/onlab/jdvue/DependencyCycle.java
+++ b/utils/jdvue/src/main/java/org/onlab/jdvue/DependencyCycle.java
@@ -5,7 +5,7 @@
 import java.util.List;
 import java.util.Objects;
 
-import static com.google.common.base.Objects.toStringHelper;
+import static com.google.common.base.MoreObjects.toStringHelper;
 
 /**
  * Simple representation of a Java package dependency cycle.
diff --git a/utils/jdvue/src/main/java/org/onlab/jdvue/JavaPackage.java b/utils/jdvue/src/main/java/org/onlab/jdvue/JavaPackage.java
index 9dcd95c..7bf4be1 100644
--- a/utils/jdvue/src/main/java/org/onlab/jdvue/JavaPackage.java
+++ b/utils/jdvue/src/main/java/org/onlab/jdvue/JavaPackage.java
@@ -4,7 +4,7 @@
 import java.util.HashSet;
 import java.util.Set;
 
-import static com.google.common.base.Objects.toStringHelper;
+import static com.google.common.base.MoreObjects.toStringHelper;
 
 /**
  * Simple abstraction of a Java package for the purpose of tracking
diff --git a/utils/jdvue/src/main/java/org/onlab/jdvue/JavaSource.java b/utils/jdvue/src/main/java/org/onlab/jdvue/JavaSource.java
index 6902d22..8919a13 100644
--- a/utils/jdvue/src/main/java/org/onlab/jdvue/JavaSource.java
+++ b/utils/jdvue/src/main/java/org/onlab/jdvue/JavaSource.java
@@ -2,7 +2,7 @@
 
 import java.util.*;
 
-import static com.google.common.base.Objects.toStringHelper;
+import static com.google.common.base.MoreObjects.toStringHelper;
 
 /**
  * Simple abstraction of a Java source file for the purpose of tracking