修复common模块工具类的报错。

修改启动时的框架信息。

module-common/pom.xml

@@ -13,6 +13,11 @@
     <packaging>jar</packaging>
 <version>1.0-SNAPSHOT</version>
     <dependencies>
+        <dependency>
+            <groupId>org.hibernate</groupId>
+            <artifactId>hibernate-validator</artifactId>
+            <version>5.1.1.Final</version>
+        </dependency>
         <dependency>
             <groupId>commons-lang</groupId>
             <artifactId>commons-lang</artifactId>

module-common/src/main/java/io/renren/common/validator/ValidatorUtils.java

@@ -25,9 +25,6 @@ import java.util.Set;
 public class ValidatorUtils {
     private static Validator validator;
 
-    static {
-        validator = Validation.buildDefaultValidatorFactory().getValidator();
-    }
 
     /**
      * 校验对象
@@ -37,6 +34,9 @@ public class ValidatorUtils {
      */
     public static void validateEntity(Object object, Class<?>... groups)
             throws RRException {
+        if (validator == null) {
+            validator = Validation.buildDefaultValidatorFactory().getValidator();
+        }
         Set<ConstraintViolation<Object>> constraintViolations = validator.validate(object, groups);
         if (!constraintViolations.isEmpty()) {
             StringBuilder msg = new StringBuilder();