fix javadoc errors

src/main/java/com/launchdarkly/client/EvaluationDetail.java

@@ -5,7 +5,7 @@
 import static com.google.common.base.Preconditions.checkNotNull;
 
 /**
- * An object returned by the "variation detail" methods such as {@link LDClientInterface#boolVariationDetails(String, LDUser, boolean),
+ * An object returned by the "variation detail" methods such as {@link LDClientInterface#boolVariationDetail(String, LDUser, boolean)},
  * combining the result of a flag evaluation with an explanation of how it was calculated.
  * @since 4.3.0
  */

src/main/java/com/launchdarkly/client/EvaluationReason.java

@@ -9,7 +9,7 @@
 
 /**
  * Describes the reason that a flag evaluation produced a particular value. This is returned by
- * methods such as {@link LDClientInterface#boolVariationDetails(String, LDUser, boolean).
+ * methods such as {@link LDClientInterface#boolVariationDetail(String, LDUser, boolean)}.
  * 
  * Note that this is an enum-like class hierarchy rather than an enum, because some of the
  * possible reasons have their own properties.
@@ -94,41 +94,47 @@ private EvaluationReason() { }
 
   /**
    * Returns an instance of {@link Off}.
+   * @return a reason object
    */
   public static Off off() {
     return Off.instance;
   }
 
   /**
    * Returns an instance of {@link TargetMatch}.
+   * @return a reason object
    */
   public static TargetMatch targetMatch() {
     return TargetMatch.instance;
   }
 
   /**
    * Returns an instance of {@link RuleMatch}.
+   * @return a reason object
    */
   public static RuleMatch ruleMatch(int ruleIndex, String ruleId) {
     return new RuleMatch(ruleIndex, ruleId);
   }
 
   /**
    * Returns an instance of {@link PrerequisitesFailed}.
+   * @return a reason object
    */
   public static PrerequisitesFailed prerequisitesFailed(Iterable<String> prerequisiteKeys) {
     return new PrerequisitesFailed(prerequisiteKeys);
   }
 
   /**
    * Returns an instance of {@link Fallthrough}.
+   * @return a reason object
    */
   public static Fallthrough fallthrough() {
     return Fallthrough.instance;
   }
 
   /**
    * Returns an instance of {@link Error}.
+   * @return a reason object
    */
   public static Error error(ErrorKind errorKind) {
     return new Error(errorKind);