Suppress warnings in classes that implement equals() without also imp…

…lementing

hashCode().

The contract for Object.hashCode states that if two objects are equal, then
calling the hashCode() method on each of the two objects must produce the same
result. Implementing equals() but not hashCode() causes broken behaviour when
trying to store the object in a collection.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=218187142

android/guava-testlib/test/com/google/common/testing/EqualsTesterTest.java

@@ -326,6 +326,7 @@ private static class InvalidHashCodeObject {
       this.aspect2 = aspect2;
     }
 
+    @SuppressWarnings("EqualsHashCode")
     @Override
     public boolean equals(Object o) {
       if (!(o instanceof InvalidHashCodeObject)) {

android/guava-testlib/test/com/google/common/testing/NullPointerTesterTest.java

@@ -1384,6 +1384,7 @@ private static String rootLocaleFormat(String format, Object... args) {
   }
 
   static class OverridesEquals {
+    @SuppressWarnings("EqualsHashCode")
     @Override
     public boolean equals(Object o) {
       return true;

android/guava-testlib/test/com/google/common/testing/SerializableTesterTest.java

@@ -80,6 +80,7 @@ private static class ClassWhichDoesNotImplementEquals implements Serializable {
   private static class ClassWhichIsAlwaysEqualButHasDifferentHashcodes implements Serializable {
     private static final long serialVersionUID = 2L;
 
+    @SuppressWarnings("EqualsHashCode")
     @Override
     public boolean equals(Object other) {
       return (other instanceof ClassWhichIsAlwaysEqualButHasDifferentHashcodes);

android/guava-testlib/test/com/google/common/testing/anotherpackage/ForwardingWrapperTesterTest.java

@@ -116,6 +116,8 @@ public void testFailsToForwardHashCode() {
           @Override
           public Runnable apply(final Runnable runnable) {
             return new ForwardingRunnable(runnable) {
+
+              @SuppressWarnings("EqualsHashCode")
               @Override
               public boolean equals(Object o) {
                 if (o instanceof ForwardingRunnable) {

guava-testlib/test/com/google/common/testing/EqualsTesterTest.java

@@ -326,6 +326,7 @@ private static class InvalidHashCodeObject {
       this.aspect2 = aspect2;
     }
 
+    @SuppressWarnings("EqualsHashCode")
     @Override
     public boolean equals(Object o) {
       if (!(o instanceof InvalidHashCodeObject)) {

guava-testlib/test/com/google/common/testing/NullPointerTesterTest.java

@@ -1437,6 +1437,7 @@ private static String rootLocaleFormat(String format, Object... args) {
   }
 
   static class OverridesEquals {
+    @SuppressWarnings("EqualsHashCode")
     @Override
     public boolean equals(Object o) {
       return true;

guava-testlib/test/com/google/common/testing/SerializableTesterTest.java

@@ -80,6 +80,7 @@ private static class ClassWhichDoesNotImplementEquals implements Serializable {
   private static class ClassWhichIsAlwaysEqualButHasDifferentHashcodes implements Serializable {
     private static final long serialVersionUID = 2L;
 
+    @SuppressWarnings("EqualsHashCode")
     @Override
     public boolean equals(Object other) {
       return (other instanceof ClassWhichIsAlwaysEqualButHasDifferentHashcodes);

guava-testlib/test/com/google/common/testing/anotherpackage/ForwardingWrapperTesterTest.java

@@ -116,6 +116,8 @@ public void testFailsToForwardHashCode() {
           @Override
           public Runnable apply(final Runnable runnable) {
             return new ForwardingRunnable(runnable) {
+
+              @SuppressWarnings("EqualsHashCode")
               @Override
               public boolean equals(Object o) {
                 if (o instanceof ForwardingRunnable) {