我一直在为我的 ant 脚本 for emma/junit阅读本教程，它指出
在 的
<classpath>元素中<junit>，更改真实类的位置，以便指向 ${instr.dir} 属性而不是正常的目标/类文件夹。
这是我的 Apache Ant 的 build.xml 中的 emma 部分（pastebin链接到完整的 build.xml）
<!-- =================================================================== -->
<!-- Run the tests with EMMA
* depends from compile -->
<!-- =================================================================== -->
<target name="emmatest" depends="compile" description="Tests the project with Emma Query" >
<!-- ======================================================================= -->
<!-- EMMA INSTRUMENTATION -->
<!-- ======================================================================= -->
<emma enabled="${emma.enabled}" >
<instr instrpathref="emma.coverage.classes"
destdir="${instr.dir}"
metadatafile="${coverage.dir}/metadata.emma"
merge="true"
>
<filter value="${emma.filter}" />
</instr>
</emma>
<junit fork="true" forkmode="once" >
<test name="test.nz.ac.massey.cs.sdc.log4jassignment.s06005586.AppenderLayoutTest" todir="${coverage.dir}">
<formatter type="xml"/>
</test>
<classpath>
<path refid="emma.lib" />
<pathelement location="${instr.dir}"/>
<fileset dir="${lib.dir}">
<include name="**/*.jar"/>
</fileset>
</classpath>
<jvmarg value="-Demma.coverage.out.file=${coverage.dir}/coverage.emma" />
<jvmarg value="-Demma.coverage.out.merge=false" />
</junit>
</target>
构建部分结果emma：JUNIT 失败结果，指向${instr.dir}
emmatest:
[instr] processing instrumentation path ...
[instr] instrumentation path processed in 109 ms
[instr] [6 class(es) instrumented, 0 resource(s) copied]
[instr] metadata merged into [C:\Users\Michael\workspace\log4jassignment.s06005586\build\emma-reports\metadata.emma] {in 42 ms}
[junit] Test test.nz.ac.massey.cs.sdc.log4jassignment.s06005586.AppenderLayoutTest FAILED
构建部分结果为junitreport：JUNIT Pass Result，指向real classes ${build.classes}
test:
[junit] Running test.nz.ac.massey.cs.sdc.log4jassignment.s06005586.AppenderLayoutTest
[junit] Tests run: 2, Failures: 0, Errors: 0, Time elapsed: 0.504 sec
[junit] Running test.nz.ac.massey.cs.sdc.log4jassignment.s06005586.StressTest
[junit] Tests run: 6, Failures: 0, Errors: 0, Time elapsed: 0.526 sec
我想知道为什么我的 JUNIT 测试AppenderLayoutTest在 emma 上失败但在 junit 上通过了。我也很有信心我coverage file没有被创建，因为 JUNIT forAppenderLayoutTest失败了。
我是否使用错误的类集进行测试？还是我错过了什么？
更新：2012 年 8 月 28 日下午 6:21
然后我改变了
<test
name="test.nz.ac.massey.cs.sdc.log4jassignment.s06005586.AppenderLayoutTest"
todir="${coverage.dir}">
和
<batchtest>
<fileset dir="${instr.dir}" includes="**/*Test.class" />
</batchtest>
以及更新的构建部分结果emma：JUNIT Fail Result，指向${instr.dir}哪里..
emmatest:
[instr] processing instrumentation path ...
[instr] instrumentation path processed in 105 ms
[instr] [6 class(es) instrumented, 0 resource(s) copied]
[instr] metadata merged into [C:\Users\Michael\workspace\log4jassignment.s06005586\build\emma-reports\metadata.emma] {in 89 ms}
[junit] TEST test.nz.ac.massey.cs.sdc.log4jassignment.s06005586.AppenderLayoutTest FAILED
[junit] TEST test.nz.ac.massey.cs.sdc.log4jassignment.s06005586.StressTest FAILED
[junit] Tests FAILED
更新：下午 7:02
我添加了<formatter type="plain" usefile="false" />，这是输出
emmatest:
[instr] [EMMA v2.1, build 5320 (stable) (2005/06/20 22:08:27)]
[instr] instrumentation path:
[instr] {
[instr] C:\Users\Michael\workspace\log4jassignment.s06005586\build\classes
[instr] }
[instr] instrumentation output mode: copy
[instr] metadata output file: C:\Users\Michael\workspace\log4jassignment.s06005586\build\emma-reports\metadata.emma
[instr] metadata output merge mode: true
[instr] processing dir path entry [C:\Users\Michael\workspace\log4jassignment.s06005586\build\classes] ...
[instr] instrumentation path processed in 147 ms
[instr] [6 class(es) instrumented, 0 resource(s) copied]
[instr] metadata contains 6 entries
[instr] metadata merged into [C:\Users\Michael\workspace\log4jassignment.s06005586\build\emma-reports\metadata.emma] {in 49 ms}
[junit] Running test.nz.ac.massey.cs.sdc.log4jassignment.s06005586.AppenderLayoutTest
[junit] Testsuite: test.nz.ac.massey.cs.sdc.log4jassignment.s06005586.AppenderLayoutTest
[junit] Tests run: 1, Failures: 0, Errors: 1, Time elapsed: 0 sec
[junit] Tests run: 1, Failures: 0, Errors: 1, Time elapsed: 0 sec
[junit] Caused an ERROR
[junit] Illegal local variable table length 17 in method test.nz.ac.massey.cs.sdc.log4jassignment.s06005586.AppenderLayoutTest.<init>()V
[junit] java.lang.ClassFormatError: Illegal local variable table length 17 in method test.nz.ac.massey.cs.sdc.log4jassignment.s06005586.AppenderLayoutTest.<init>()V
[junit] at java.lang.Class.forName0(Native Method)
[junit] at java.lang.Class.forName(Unknown Source)
[junit] TEST test.nz.ac.massey.cs.sdc.log4jassignment.s06005586.AppenderLayoutTest FAILED
[junit] Running test.nz.ac.massey.cs.sdc.log4jassignment.s06005586.StressTest
[junit] Testsuite: test.nz.ac.massey.cs.sdc.log4jassignment.s06005586.StressTest
[junit] Tests run: 1, Failures: 0, Errors: 1, Time elapsed: 0 sec
[junit] Tests run: 1, Failures: 0, Errors: 1, Time elapsed: 0 sec
[junit] Caused an ERROR
[junit] Expecting a stackmap frame at branch target 11 in method test.nz.ac.massey.cs.sdc.log4jassignment.s06005586.StressTest.<init>()V at offset 4
[junit] java.lang.VerifyError: Expecting a stackmap frame at branch target 11 in method test.nz.ac.massey.cs.sdc.log4jassignment.s06005586.StressTest.<init>()V at offset 4
[junit] at java.lang.Class.forName0(Native Method)
[junit] at java.lang.Class.forName(Unknown Source)
[junit] TEST test.nz.ac.massey.cs.sdc.log4jassignment.s06005586.StressTest FAILED
[junit] Tests FAILED
什么是 [junit] java.lang.ClassFormatError: Illegal local variable table length 17 in method test.nz.ac.massey.cs.sdc.log4jassignment.s06005586.AppenderLayoutTest.<init>()V