diff --git a/src/main/java/xyz/zhouxy/plusone/validator/BoolValidator.java b/src/main/java/xyz/zhouxy/plusone/validator/BoolValidator.java
index 9912c37..fa408f6 100644
--- a/src/main/java/xyz/zhouxy/plusone/validator/BoolValidator.java
+++ b/src/main/java/xyz/zhouxy/plusone/validator/BoolValidator.java
@@ -3,6 +3,8 @@ package xyz.zhouxy.plusone.validator;
 import java.util.function.Function;
 import java.util.function.Supplier;
 
+import org.apache.commons.lang3.BooleanUtils;
+
 public class BoolValidator<DTO> extends PropertyValidator<DTO, Boolean, BoolValidator<DTO>> {
 
     BoolValidator(Function<DTO, Boolean> getter) {
@@ -25,7 +27,7 @@ public class BoolValidator<DTO> extends PropertyValidator<DTO, Boolean, BoolVali
 
     public <E extends RuntimeException> BoolValidator<DTO> isTrue(
             Function<Boolean, E> exceptionCreator) {
-        withRule(Boolean.TRUE::equals, exceptionCreator);
+        withRule(BooleanUtils::isTrue, exceptionCreator);
         return this;
     }
 
@@ -45,10 +47,10 @@ public class BoolValidator<DTO> extends PropertyValidator<DTO, Boolean, BoolVali
 
     public <E extends RuntimeException> BoolValidator<DTO> isFalse(
             Function<Boolean, E> exceptionCreator) {
-        withRule(Boolean.FALSE::equals, exceptionCreator);
+        withRule(BooleanUtils::isFalse, exceptionCreator);
         return this;
     }
-    
+
     @Override
     protected BoolValidator<DTO> thisObject() {
         return this;
diff --git a/src/main/java/xyz/zhouxy/plusone/validator/CollectionValidator.java b/src/main/java/xyz/zhouxy/plusone/validator/CollectionValidator.java
index d4ab7ba..4526988 100644
--- a/src/main/java/xyz/zhouxy/plusone/validator/CollectionValidator.java
+++ b/src/main/java/xyz/zhouxy/plusone/validator/CollectionValidator.java
@@ -4,6 +4,8 @@ import java.util.Collection;
 import java.util.function.Function;
 import java.util.function.Supplier;
 
+import org.apache.commons.collections4.CollectionUtils;
+
 public class CollectionValidator<DTO, T> extends PropertyValidator<DTO, Collection<T>, CollectionValidator<DTO, T>> {
 
     CollectionValidator(Function<DTO, Collection<T>> getter) {
@@ -22,12 +24,7 @@ public class CollectionValidator<DTO, T> extends PropertyValidator<DTO, Collecti
 
     public <E extends RuntimeException> CollectionValidator<DTO, T> notEmpty(
             Function<Collection<T>, E> exceptionCreator) {
-        withRule(value -> {
-            if (value == null) {
-                return false;
-            }
-            return !((Collection<?>) value).isEmpty();
-        }, exceptionCreator);
+        withRule(CollectionUtils::isNotEmpty, exceptionCreator);
         return this;
     }
 
@@ -43,12 +40,7 @@ public class CollectionValidator<DTO, T> extends PropertyValidator<DTO, Collecti
 
     public <E extends RuntimeException> CollectionValidator<DTO, T> isEmpty(
             Function<Collection<T>, E> exceptionCreator) {
-        withRule(value -> {
-            if (value == null) {
-                return true;
-            }
-            return ((Collection<?>) value).isEmpty();
-        }, exceptionCreator);
+        withRule(CollectionUtils::isEmpty, exceptionCreator);
         return this;
     }