spring - java.lang.ClassNotFoundException: org.springframework.cglib.core.CodeGenerationException -

i trying use maven hibernate , spring , had problem not being able work out hibernate3 , spring 4.2.0 because of tx annotations. after downgrade @ 3.0.2, seems ok except when i'm running app this:

caused by: java.lang.classnotfoundexception:org.springframework.cglib.core.codegenerationexception @ org.apache.catalina.loader.webappclassloader.loadclass(webappclassloader.java:1702) @ org.apache.catalina.loader.webappclassloader.loadclass(webappclassloader.java:1547) ... 42 more 

should use version of cglib ? here dependencies:

<dependencies> <dependency>   <groupid>javax.servlet</groupid>   <artifactid>servlet-api</artifactid>   <version>2.5</version> </dependency> <dependency>   <groupid>org.springframework</groupid>   <artifactid>spring-beans</artifactid>   <version>${org.springframework.version}</version> </dependency> <dependency>   <groupid>org.springframework</groupid>   <artifactid>spring-jdbc</artifactid>   <version>${org.springframework.version}</version> </dependency> <dependency>   <groupid>org.springframework</groupid>   <artifactid>spring-web</artifactid>   <version>${org.springframework.version}</version> </dependency> <dependency>   <groupid>org.springframework</groupid>   <artifactid>spring-webmvc</artifactid>   <version>${org.springframework.version}</version> </dependency> <dependency>   <groupid>org.springframework</groupid>   <artifactid>spring-orm</artifactid>   <version>${org.springframework.version}</version> </dependency> <!-- dependency>   <groupid>org.slf4j</groupid>   <artifactid>slf4j-log4j12</artifactid>   <version>1.4.2</version> </dependency --> <dependency>   <groupid>taglibs</groupid>   <artifactid>standard</artifactid>   <version>1.1.2</version> </dependency> <dependency>   <groupid>javax.servlet</groupid>   <artifactid>jstl</artifactid>   <version>1.1.2</version> </dependency> <dependency>   <groupid>mysql</groupid>   <artifactid>mysql-connector-java</artifactid>   <version>5.1.10</version> </dependency> <dependency>   <groupid>commons-dbcp</groupid>   <artifactid>commons-dbcp</artifactid>   <version>20030825.184428</version> </dependency> <dependency>   <groupid>commons-pool</groupid>   <artifactid>commons-pool</artifactid>   <version>20030825.183949</version> </dependency> <dependency>     <groupid>hibernate</groupid>     <artifactid>hibernate-entitymanager</artifactid>     <version>3.4.0.ga</version>     <type>pom</type> </dependency> <dependency>     <groupid>org.springframework</groupid>     <artifactid>spring-aop</artifactid>     <version>4.2.0.release</version> </dependency> <dependency>     <groupid>javax.validation</groupid>     <artifactid>validation-api</artifactid>     <version>1.1.0.final</version> </dependency> <dependency>     <groupid>org.hibernate</groupid>     <artifactid>hibernate-validator</artifactid>     <version>5.2.1.final</version> </dependency> <dependency>     <groupid>org.slf4j</groupid>     <artifactid>slf4j-api</artifactid>     <version>1.7.12</version> </dependency> <dependency>     <groupid>cglib</groupid>     <artifactid>cglib</artifactid>     <version>3.1</version> </dependency> 

<properties>     <org.springframework.version>3.0.2.release</org.springframework.version>   <project.build.sourceencoding>utf-8</project.build.sourceencoding> </properties> 

i missed 1 change of version. changed

<dependency> <groupid>org.springframework</groupid> <artifactid>spring-aop</artifactid> <version>4.2.0.release</version> 

to

<dependency> <groupid>org.springframework</groupid> <artifactid>spring-aop</artifactid> <version>${org.springframework.version}</version>