java.lang.ClassFormatError: Illegal class name “groovy/jmx/builder/package-info” in class file groovy/jmx/builder/package-info

问题

after adding the groovy-all dependency in my pom file:

    <dependency>
      <groupId>org.codehaus.groovy</groupId>
      <artifactId>groovy-all</artifactId>
      <version>1.7.5</version>
    </dependency>

i am getting the following exception, when running the application:

WARNING: Unable to load class [groovy.jmx.builder.package-info] to check against the @HandlesTypes annotation of one or more ServletContentInitializers. 
java.lang.ClassFormatError: Illegal class name "groovy/jmx/builder/package-info" in class file groovy/jmx/builder/package-info
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:616)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
    at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2820)
    at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1150)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1645)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1523)
    at org.apache.catalina.startup.ContextConfig.checkHandlesTypes(ContextConfig.java:2006)
    at org.apache.catalina.startup.ContextConfig.processAnnotationsStream(ContextConfig.java:1969)
    at org.apache.catalina.startup.ContextConfig.processAnnotationsJar(ContextConfig.java:1858)
    at org.apache.catalina.startup.ContextConfig.processAnnotationsUrl(ContextConfig.java:1826)
    at org.apache.catalina.startup.ContextConfig.processAnnotations(ContextConfig.java:1812)
    at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1306)
    at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:896)
    at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:322)
    at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5103)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:148)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1033)
    at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:774)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:148)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1033)
    at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:291)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:148)
    at org.apache.catalina.core.StandardService.startInternal(StandardService.java:443)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:148)
    at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:727)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:148)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:621)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:322)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:450)

i am using maven-2,tomcat 7

please advise why i am getting this exception, and how to solve it.