Emma使用过程中遇到的 错误

 [report] nothing to do: no runtime coverage data found in any of the data files

Ant与Emma集成的时候总提示这种错误。。。查了下Emma QA说是runtime与 metadata


源代码如下，哪位遇到过这种问题。。

<? xml version="1.0" ?>
< project  name ="Toccata Code Quality"  default ="init"  basedir ="." >
    

        
     < property  name ="junitJar"  value ="lib/UT/junit.jar" />
     < property  name ="emmaJar"   value ="lib/UT/emma.jar" />
        
     <!--  目录配置  -->
     < property  name ="base.dir"  location ="." />
    
     < property  name ="lib.dir"  value ="./lib" />
     < path  id ="classpath.main" >
         < pathelement  location ="${build.src}"   />
     </ path >
     < property  name ="build.dest"  value ="./src/classes" />
     < property  name ="build.test.bin"  value ="./src/classes/test" />

    
     < property  name ="build.javadocs"  value ="./src/UT/doc" />
     < property  name ="build.report"  value ="./report"   />
     < property  name ="build.src"  value ="./src/UT/"   />
     < property  name ="build.test"  value ="/src/UT/test"   />
     < property  name ="build.instrument"  location ="./instrbin"   />
     < property  name ="coverage.dir"  location ="${base.dir}/report/UT/coverage"   />

     < property  name ="emma.enabled"  value ="true"   />
     <!-- 指示需要注入字节码的Java类的路径 -->
     < path  id ="classpath.main" >
         < pathelement  location ="${build.dest}"   />
     </ path >
    
     < path  id ="emma.lib" >
             < pathelement  location ="lib/UT/emma.jar"   />
             < pathelement  location ="lib/UT/emma_ant.jar"   />
     </ path >
    
     < taskdef  resource ="emma_ant.properties"  classpathref ="emma.lib"   />

     < target  name ="init" >
         < mkdir  dir ="${build.instrument}" />
         < mkdir  dir ="report/UT/htmlreport" />     
         < mkdir  dir ="${build.dest}" />
     </ target >
        
     < target  name ="compile"  depends ="init" >
             < javac  destdir ="${build.dest}"  srcdir ="${build.src}/ibm"  debug ="on" >             
                 < classpath >
                     < pathelement  location ="${junitJar}" />
                     < pathelement  location ="${emmaJar}" />
                 </ classpath >
             </ javac >
             < copy  todir ="${build.dest}" >
                 < fileset  dir ="${build.src}/ibm" >
                     < include  name ="**/*.class" />
                     < exclude  name ="**/*.java"   />
                 </ fileset >
             </ copy >
     </ target >
    
     < target  name ="compile-test" >
         < mkdir  dir ="${build.test.bin}"   />
                 < javac  destdir ="${build.test.bin}"  debug ="on" >
                     < src  path ="${build.test}"   />
                     < classpath  location ="${build.dest}" >
                         < pathelement  location ="${junitJar}" />
                     </ classpath >
                 </ javac >
                 < copy  todir ="${build.test.bin}" >
                     < fileset  dir ="${build.test}" >
                         < include  name ="**/*.class" />
                         < exclude  name ="**/*.java"   />
                     </ fileset >
                 </ copy >
     </ target >

    
    
     <!-- 对编译在路径build.src中的Java类注入字节码, 并且把注入字节码的新Java类存放到路径build.instrument -->
     <!-- 覆盖率的元数据存放在路径coverage.dir中 -->
     <!-- 插入字节码 -->
    
     < target  name ="instrument"  depends ="compile" >
             < emma  enabled ="${emma.enabled}" >
                 < instr  instrpathref ="classpath.main"  
                        destdir ="${build.instrument}"  
                        metadatafile ="${coverage.dir}/metadata.emma"  merge ="true" >
                    
                 </ instr >
             </ emma >
             < copy  todir ="${build.instrument}" >
                     < fileset  dir ="${build.dest}" >
                         < include  name ="**/*.class"   />
                         < exclude  name ="**/*.java"   />
                     </ fileset >
             </ copy >
     </ target >
    
     < target  name ="run"  depends ="compile" >
         < junit  fork ="true"  forkmode ="once" >
                        
             < jvmarg  value ="-Demma.coverage.out.file = ${coverage.dir}/metadata.emma"   />
             < jvmarg  value ="-Demma.coverage.out.merge = true"   />

             < classpath >
                 < pathelement  location ="${build.src}/" />
                 < pathelement  location ="${junitJar}" />
                 < pathelement  location ="${emmaJar}" />
             </ classpath >
            
             < formatter  type ="xml" />
             <!--  formatter用于格式化测试输出结果  -->
             < batchtest  haltonfailure ="no"  todir ="report" >
                 < fileset  dir ="${build.test}" >
                     < include  name ="**/*Test.java" />
                 </ fileset >
             </ batchtest >
         </ junit >
         < junitreport  todir ="${build.report}/UT/htmlreport" >
             < fileset  dir ="./report"  id ="id" >
                 < include  name ="*.xml" />
             </ fileset >
             < report  todir ="${build.report}/UT/htmlreport"  format ="frames"  Styledir ="./report/XSL" >
         </ report >
            
         </ junitreport >
         < echo  message ="end running junit test" ></ echo >
     </ target >


     < target  name ="coverage_report"  depends ="instrument,compile" >
             <!-- 如果属性emma.enabled的值是true，就生成代码覆盖率报告  -->
             < emma  enabled ="${emma.enabled}" >
                 < report  sourcepath ="${build.src}/ibm"
                    sort ="+block,+name,+method,+class"
                    metrics ="method:70,block:80,line:80,class:100" >
                    
                
                     < fileset  dir ="${coverage.dir}" >
                         < include  name ="*.emma"   />
                     </ fileset >
                    
                     < html  outfile ="${coverage.dir}/coverage.html"   />

                 </ report >
             </ emma >
     </ target >
    
    
     <!--  checkstyle  -->
     < taskdef  resource ="checkstyletask.properties"  classpath ="lib/checkstyle/checkstyle-all-4.4.jar"   />
     < target  name ="checkstyle_report" >
         < checkstyle  config ="conf/checkstyle/bpf_checks.xml" >
             < fileset  dir ="src"  includes ="**/*.java"   />
             < formatter  type ="plain"   />
             < formatter  type ="xml"  toFile ="report/checkstyle/checkstyle_errors.xml"   />
         </ checkstyle >
         < xslt  in ="report/checkstyle/checkstyle_errors.xml"
            out ="report/checkstyle/checkstyle_report.html"  
            style ="conf/checkstyle/checkstyle-frames.xsl"   />
     </ target >

</ project >