diff --git a/src/main/java/org/apache/commons/lang3/concurrent/CircuitBreaker.java b/src/main/java/org/apache/commons/lang3/concurrent/CircuitBreaker.java
index dc798e6f5..4df62ece1 100644
--- a/src/main/java/org/apache/commons/lang3/concurrent/CircuitBreaker.java
+++ b/src/main/java/org/apache/commons/lang3/concurrent/CircuitBreaker.java
@@ -39,21 +39,22 @@ package org.apache.commons.lang3.concurrent;
  * @since 3.5
  */
 public interface CircuitBreaker<T> {
+
     /**
-     * Returns the current open state of this circuit breaker. A return value of
+     * Tests the current open state of this circuit breaker. A return value of
      * <strong>true</strong> means that the circuit breaker is currently open indicating a
      * problem in the monitored sub system.
      *
-     * @return the current open state of this circuit breaker
+     * @return the current open state of this circuit breaker.
      */
     boolean isOpen();
 
     /**
-     * Returns the current closed state of this circuit breaker. A return value of
+     * Tests the current closed state of this circuit breaker. A return value of
      * <strong>true</strong> means that the circuit breaker is currently closed. This
      * means that everything is okay with the monitored sub system.
      *
-     * @return the current closed state of this circuit breaker
+     * @return the current closed state of this circuit breaker.
      */
     boolean isClosed();
 
@@ -63,7 +64,7 @@ public interface CircuitBreaker<T> {
      * of <strong>true</strong> typically means that the current operation can continue.
      *
      * @return <strong>true</strong> if the circuit breaker is now closed;
-     * <strong>false</strong> otherwise
+     * <strong>false</strong> otherwise.
      */
     boolean checkState();