spring - Error creating bean with name 'freeMarkerConfigurer' -

i have package spring boot project war maven package. when deploy tomcat have web projecting running on it, wired problem happen.i'm start learning spring boot, me issue. thx~

    org.springframework.beans.factory.beancreationexception: error creating bean name 'freemarkerconfigurer' defined in class path resource [org/springframework/boot/autoconfigure/freemarker/freemarkerautoconfiguration$freemarkerwebconfiguration.class]: bean instantiation via factory method failed; nested exception org.springframework.beans.beaninstantiationexception: failed instantiate [org.springframework.web.servlet.view.freemarker.freemarkerconfigurer]: factory method 'freemarkerconfigurer' threw exception; nested exception java.lang.linkageerror: loader constraint violation in interface itable initialization: when resolving method "org.springframework.ui.freemarker.freemarkerconfigurationfactory.setresourceloader(lorg/springframework/core/io/resourceloader;)v" class loader (instance of org/apache/catalina/loader/standardclassloader) of current class, org/springframework/web/servlet/view/freemarker/freemarkerconfigurer, , class loader (instance of org/apache/catalina/loader/webappclassloader) interface org/springframework/context/resourceloaderaware have different class objects type org/springframework/core/io/resourceloader used in signature     @ org.springframework.beans.factory.support.constructorresolver.instantiateusingfactorymethod(constructorresolver.java:599)     @ org.springframework.beans.factory.support.abstractautowirecapablebeanfactory.instantiateusingfactorymethod(abstractautowirecapablebeanfactory.java:1119)     @ org.springframework.beans.factory.support.abstractautowirecapablebeanfactory.createbeaninstance(abstractautowirecapablebeanfactory.java:1014)     @ org.springframework.beans.factory.support.abstractautowirecapablebeanfactory.docreatebean(abstractautowirecapablebeanfactory.java:504)     @ org.springframework.beans.factory.support.abstractautowirecapablebeanfactory.createbean(abstractautowirecapablebeanfactory.java:476)     @ org.springframework.beans.factory.support.abstractbeanfactory$1.getobject(abstractbeanfactory.java:303)     @ org.springframework.beans.factory.support.defaultsingletonbeanregistry.getsingleton(defaultsingletonbeanregistry.java:230)     @ org.springframework.beans.factory.support.abstractbeanfactory.dogetbean(abstractbeanfactory.java:299)     @ org.springframework.beans.factory.support.abstractbeanfactory.getbean(abstractbeanfactory.java:194)     @ org.springframework.beans.factory.support.defaultlistablebeanfactory.preinstantiatesingletons(defaultlistablebeanfactory.java:755)     @ org.springframework.context.support.abstractapplicationcontext.finishbeanfactoryinitialization(abstractapplicationcontext.java:757)     @ org.springframework.context.support.abstractapplicationcontext.refresh(abstractapplicationcontext.java:480)     @ org.springframework.boot.context.embedded.embeddedwebapplicationcontext.refresh(embeddedwebapplicationcontext.java:118)     @ org.springframework.boot.springapplication.refresh(springapplication.java:686)     @ org.springframework.boot.springapplication.run(springapplication.java:320)     @ org.springframework.boot.context.web.springbootservletinitializer.run(springbootservletinitializer.java:117)     @ org.springframework.boot.context.web.springbootservletinitializer.createrootapplicationcontext(springbootservletinitializer.java:108)     @ org.springframework.boot.context.web.springbootservletinitializer.onstartup(springbootservletinitializer.java:68)     @ org.springframework.web.springservletcontainerinitializer.onstartup(springservletcontainerinitializer.java:175)     @ org.apache.catalina.core.standardcontext.startinternal(standardcontext.java:5274)     @ org.apache.catalina.util.lifecyclebase.start(lifecyclebase.java:150)     @ org.apache.catalina.core.containerbase.addchildinternal(containerbase.java:901)     @ org.apache.catalina.core.containerbase.addchild(containerbase.java:877)     @ org.apache.catalina.core.standardhost.addchild(standardhost.java:633)     @ org.apache.catalina.startup.hostconfig.deploywar(hostconfig.java:977)     @ org.apache.catalina.startup.hostconfig$deploywar.run(hostconfig.java:1655)     @ java.util.concurrent.executors$runnableadapter.call(executors.java:471)     @ java.util.concurrent.futuretask$sync.innerrun(futuretask.java:334)     @ java.util.concurrent.futuretask.run(futuretask.java:166)     @ java.util.concurrent.threadpoolexecutor.runworker(threadpoolexecutor.java:1110)     @ java.util.concurrent.threadpoolexecutor$worker.run(threadpoolexecutor.java:603)     @ java.lang.thread.run(thread.java:679) caused by: org.springframework.beans.beaninstantiationexception: failed instantiate [org.springframework.web.servlet.view.freemarker.freemarkerconfigurer]: factory method 'freemarkerconfigurer' threw exception; nested exception java.lang.linkageerror: loader constraint violation in interface itable initialization: when resolving method "org.springframework.ui.freemarker.freemarkerconfigurationfactory.setresourceloader(lorg/springframework/core/io/resourceloader;)v" class loader (instance of org/apache/catalina/loader/standardclassloader) of current class, org/springframework/web/servlet/view/freemarker/freemarkerconfigurer, , class loader (instance of org/apache/catalina/loader/webappclassloader) interface org/springframework/context/resourceloaderaware have different class objects type org/springframework/core/io/resourceloader used in signature     @ org.springframework.beans.factory.support.simpleinstantiationstrategy.instantiate(simpleinstantiationstrategy.java:189)     @ org.springframework.beans.factory.support.constructorresolver.instantiateusingfactorymethod(constructorresolver.java:588)     ... 31 common frames omitted caused by: java.lang.linkageerror: loader constraint violation in interface itable initialization: when resolving method "org.springframework.ui.freemarker.freemarkerconfigurationfactory.setresourceloader(lorg/springframework/core/io/resourceloader;)v" class loader (instance of org/apache/catalina/loader/standardclassloader) of current class, org/springframework/web/servlet/view/freemarker/freemarkerconfigurer, , class loader (instance of org/apache/catalina/loader/webappclassloader) interface org/springframework/context/resourceloaderaware have different class objects type org/springframework/core/io/resourceloader used in signature     @ org.springframework.boot.autoconfigure.freemarker.freemarkerautoconfiguration$freemarkerwebconfiguration.freemarkerconfigurer(freemarkerautoconfiguration.java:124)     @ org.springframework.boot.autoconfigure.freemarker.freemarkerautoconfiguration$freemarkerwebconfiguration$$enhancerbyspringcglib$$49f80c27.cglib$freemarkerconfigurer$0(<generated>)     @ org.springframework.boot.autoconfigure.freemarker.freemarkerautoconfiguration$freemarkerwebconfiguration$$enhancerbyspringcglib$$49f80c27$$fastclassbyspringcglib$$1c5632a1.invoke(<generated>)     @ org.springframework.cglib.proxy.methodproxy.invokesuper(methodproxy.java:228)     @ org.springframework.context.annotation.configurationclassenhancer$beanmethodinterceptor.intercept(configurationclassenhancer.java:309)     @ org.springframework.boot.autoconfigure.freemarker.freemarkerautoconfiguration$freemarkerwebconfiguration$$enhancerbyspringcglib$$49f80c27.freemarkerconfigurer(<generated>)     @ sun.reflect.nativemethodaccessorimpl.invoke0(native method)     @ sun.reflect.nativemethodaccessorimpl.invoke(nativemethodaccessorimpl.java:57)     @ sun.reflect.delegatingmethodaccessorimpl.invoke(delegatingmethodaccessorimpl.java:43)     @ java.lang.reflect.method.invoke(method.java:616)     @ org.springframework.beans.factory.support.simpleinstantiationstrategy.instantiate(simpleinstantiationstrategy.java:162)     ... 32 common frames omitted 

pom.xml

to compatible of java 1.6, exclude several dependency.

<parent>         <groupid>org.springframework.boot</groupid>         <artifactid>spring-boot-starter-parent</artifactid>         <version>1.2.3.release</version>     </parent>     <dependencies>         <dependency>             <groupid>org.springframework.boot</groupid>             <artifactid>spring-boot-starter-web</artifactid>         </dependency>         <dependency>             <groupid>org.springframework.boot</groupid>             <artifactid>spring-boot-starter-tomcat</artifactid>             <scope>provided</scope>         </dependency>         <dependency>             <groupid>org.springframework.boot</groupid>             <artifactid>spring-boot-starter-data-jpa</artifactid>             <exclusions>                 <exclusion>                     <artifactid>javax.transaction-api</artifactid>                     <groupid>javax.transaction</groupid>                 </exclusion>             </exclusions>         </dependency>         <dependency>             <groupid>org.jboss.spec.javax.transaction</groupid>             <artifactid>jboss-transaction-api_1.1_spec</artifactid>             <version>1.0.1.final</version>         </dependency>         <dependency>             <groupid>org.springframework.boot</groupid>             <artifactid>spring-boot-starter-security</artifactid>         </dependency>         <dependency>             <groupid>com.h2database</groupid>             <artifactid>h2</artifactid>             <scope>test</scope>         </dependency>         <dependency>             <groupid>org.springframework.boot</groupid>             <artifactid>spring-boot-starter-test</artifactid>         </dependency>         <dependency>             <groupid>com.google.guava</groupid>             <artifactid>guava</artifactid>             <version>18.0</version>         </dependency>         <dependency>             <groupid>mysql</groupid>             <artifactid>mysql-connector-java</artifactid>         </dependency>         <dependency>             <groupid>org.springframework.boot</groupid>             <artifactid>spring-boot-starter-thymeleaf</artifactid>         </dependency>         <dependency>             <groupid>nekohtml</groupid>             <artifactid>nekohtml</artifactid>             <version>1.9.6.2</version>         </dependency>         <dependency>             <groupid>org.webjars</groupid>             <artifactid>webjars-locator</artifactid>             <version>0.1</version>             <exclusions>                 <exclusion>                     <artifactid>javassist</artifactid>                     <groupid>javassist</groupid>                 </exclusion>             </exclusions>         </dependency>         <dependency>             <groupid>org.thymeleaf.extras</groupid>             <artifactid>thymeleaf-extras-springsecurity3</artifactid>         </dependency>     </dependencies>     <properties>         <java.version>1.6</java.version>         <tomcat.version>7.0.63</tomcat.version>     </properties>