maven 打包报错 生成javadoc 时有问题

项目是基于maven管理的，一直打包都好着呢，今天打包莫名奇妙的报了一大堆错误

[ERROR] java.lang.ClassCastException: com.sun.tools.javadoc.ClassDocImpl cannot be cast to com.sun.javadoc.AnnotationTypeDoc
[ERROR] at com.sun.tools.javadoc.AnnotationDescImpl.annotationType(AnnotationDescImpl.java:46)
[ERROR] at com.sun.tools.doclets.internal.toolkit.util.Util.isDeprecated(Util.java:811)
[ERROR] at com.sun.tools.doclets.formats.html.TagletWriterImpl.deprecatedTagOutput(TagletWriterImpl.java:85)
[ERROR] at com.sun.tools.doclets.internal.toolkit.taglets.DeprecatedTaglet.getTagletOutput(DeprecatedTaglet.java:40)
[ERROR] at com.sun.tools.doclets.formats.html.MethodWriterImpl.writeDeprecated(MethodWriterImpl.java:166)
[ERROR] at com.sun.tools.doclets.internal.toolkit.builders.MethodBuilder.buildDeprecationInfo(MethodBuilder.java:183)
[ERROR] at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
[ERROR] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[ERROR] at java.lang.reflect.Method.invoke(Method.java:597)
[ERROR] at com.sun.tools.doclets.internal.toolkit.builders.MethodBuilder.invokeMethod(MethodBuilder.java:109)
[ERROR] at com.sun.tools.doclets.internal.toolkit.builders.AbstractBuilder.build(AbstractBuilder.java:90)
[ERROR] at com.sun.tools.doclets.internal.toolkit.builders.AbstractMemberBuilder.build(AbstractMemberBuilder.java:56)
[ERROR] at com.sun.tools.doclets.internal.toolkit.builders.MethodBuilder.buildMethodDoc(MethodBuilder.java:150)
[ERROR] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[ERROR] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[ERROR] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[ERROR] at java.lang.reflect.Method.invoke(Method.java:597)
[ERROR] at com.sun.tools.doclets.internal.toolkit.builders.MethodBuilder.invokeMethod(MethodBuilder.java:109)
[ERROR] at com.sun.tools.doclets.internal.toolkit.builders.AbstractBuilder.build(AbstractBuilder.java:90)
[ERROR] at com.sun.tools.doclets.internal.toolkit.builders.AbstractMemberBuilder.build(AbstractMemberBuilder.java:56)
[ERROR] at com.sun.tools.doclets.internal.toolkit.builders.ClassBuilder.buildMethodDetails(ClassBuilder.java:322)
[ERROR] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[ERROR] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[ERROR] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[ERROR] at java.lang.reflect.Method.invoke(Method.java:597)
[ERROR] at com.sun.tools.doclets.internal.toolkit.builders.ClassBuilder.invokeMethod(ClassBuilder.java:101)
[ERROR] at com.sun.tools.doclets.internal.toolkit.builders.AbstractBuilder.build(AbstractBuilder.java:90)
[ERROR] at com.sun.tools.doclets.internal.toolkit.builders.ClassBuilder.buildClassDoc(ClassBuilder.java:124)
[ERROR] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[ERROR] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[ERROR] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[ERROR] at java.lang.reflect.Method.invoke(Method.java:597)
[ERROR] at com.sun.tools.doclets.internal.toolkit.builders.ClassBuilder.invokeMethod(ClassBuilder.java:101)
[ERROR] at com.sun.tools.doclets.internal.toolkit.builders.AbstractBuilder.build(AbstractBuilder.java:90)
[ERROR] at com.sun.tools.doclets.internal.toolkit.builders.ClassBuilder.build(ClassBuilder.java:108)
[ERROR] at com.sun.tools.doclets.formats.html.HtmlDoclet.generateClassFiles(HtmlDoclet.java:155)
[ERROR] at com.sun.tools.doclets.internal.toolkit.AbstractDoclet.generateClassFiles(AbstractDoclet.java:164)
[ERROR] at com.sun.tools.doclets.internal.toolkit.AbstractDoclet.startGeneration(AbstractDoclet.java:106)
[ERROR] at com.sun.tools.doclets.internal.toolkit.AbstractDoclet.start(AbstractDoclet.java:64)
[ERROR] at com.sun.tools.doclets.formats.html.HtmlDoclet.start(HtmlDoclet.java:42)
[ERROR] at com.sun.tools.doclets.standard.Standard.start(Standard.java:23)
[ERROR] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[ERROR] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[ERROR] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[ERROR] at java.lang.reflect.Method.invoke(Method.java:597)
[ERROR] at com.sun.tools.javadoc.DocletInvoker.invoke(DocletInvoker.java:269)
[ERROR] at com.sun.tools.javadoc.DocletInvoker.start(DocletInvoker.java:143)
[ERROR] at com.sun.tools.javadoc.Start.parseAndExecute(Start.java:340)
[ERROR] at com.sun.tools.javadoc.Start.begin(Start.java:128)
[ERROR] at com.sun.tools.javadoc.Main.execute(Main.java:41)
[ERROR] at com.sun.tools.javadoc.Main.main(Main.java:31)

搞了半天没研究出来，最后试了多个命令，如 ：pakage  、test 等命令都不报错，只有在用install 的时候报错。 仔细看日志，最后怀疑是 在生成 javadoc 的时候报错，又试了install -D maven.javadoc.skip=true 命令跳过 生成javadoc 部分，果然就不报错了。

仔细研究了下，原来是maven javadoc插件 版本的问题，导致生成这个的时候报错。在pom      中增加

biz-statistics
        
            
                ${project.basedir}/src/main/resources
                true
            
        

 
          maven-javadoc-plugin
          2.9.1
          
            
              attach-javadocs
              install
              
                jar
              
              
                UTF-8
              
            
          
          
            UTF-8
          
        
        

设置版本号即可。