From 0e35b3f623e18596b169147da15011b89f196309 Mon Sep 17 00:00:00 2001
From: Andrew Gaul <gaul@maginatics.com>
Date: Sat, 3 Nov 2012 14:38:33 -0700
Subject: [PATCH] Implement Comparable in GoGrid ErrorResponse

Gson collects errors in a TreeMap which requires a well-behaved
Comparable method.  This addresses a Java 7 GoGrid failure seen in
GridServerClientExpectTest.testGetServerCredentialsWhenNotFoundThrowsResourceNotFoundExceptionWithNiceMessage:

java.lang.ClassCastException: org.jclouds.gogrid.domain.internal.ErrorResponse cannot be cast to java.lang.Comparable
---
 .../jclouds/gogrid/domain/internal/ErrorResponse.java | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/providers/gogrid/src/main/java/org/jclouds/gogrid/domain/internal/ErrorResponse.java b/providers/gogrid/src/main/java/org/jclouds/gogrid/domain/internal/ErrorResponse.java
index 534a969c73..a776e35a65 100644
--- a/providers/gogrid/src/main/java/org/jclouds/gogrid/domain/internal/ErrorResponse.java
+++ b/providers/gogrid/src/main/java/org/jclouds/gogrid/domain/internal/ErrorResponse.java
@@ -24,13 +24,14 @@ import java.beans.ConstructorProperties;
 
 import com.google.common.base.Objects;
 import com.google.common.base.Objects.ToStringHelper;
+import com.google.common.collect.ComparisonChain;
 
 /**
  * Class ErrorResponse
  *
  * @author Oleksiy Yarmula
  */
-public class ErrorResponse {
+public class ErrorResponse implements Comparable<ErrorResponse> {
 
    public static Builder<?> builder() {
       return new ConcreteBuilder();
@@ -113,6 +114,14 @@ public class ErrorResponse {
             && Objects.equal(this.errorCode, that.errorCode);
    }
 
+   @Override
+   public int compareTo(ErrorResponse that) {
+      return ComparisonChain.start()
+            .compare(errorCode, that.errorCode)
+            .compare(message, that.message)
+            .result();
+   }
+
    protected ToStringHelper string() {
       return Objects.toStringHelper(this)
             .add("message", message).add("errorCode", errorCode);