我有以下build.xml
<?xml version="1.0" encoding="UTF-8"?
<project name="Sample" default="coverage" basedir=".">
<property file="build.properties" />
<path id="cobertura.classpath">
<fileset dir="lib">
<include name="**/*.jar" />
</fileset>
</path>
<taskdef classpathref="cobertura.classpath" resource="tasks.properties"/>
<target name="init">
<mkdir dir="${classes.dir}" />
<mkdir dir="${instrumented.dir}" />
<mkdir dir="${reports.xml.dir}" />
<mkdir dir="${reports.html.dir}" />
<mkdir dir="${coverage.xml.dir}" />
<mkdir dir="${coverage.summaryxml.dir}" />
<mkdir dir="${coverage.html.dir}" />
</target>
<target name="compile" depends="init">
<javac srcdir="${src.dir}" destdir="${classes.dir}" debug="yes" includeantruntime="false">
<classpath refid="cobertura.classpath" />
</javac>
</target>
<target name="instrument" depends="init,compile">
<!--
Remove the coverage data file and any old instrumentation.
-->
<delete file="cobertura.ser" />
<delete dir="${instrumented.dir}" />
<!--
Instrument the application classes, writing the
instrumented classes into ${build.instrumented.dir}.
-->
<cobertura-instrument todir="${instrumented.dir}" datafile="cobertura.ser">
<!--
The following line causes instrument to ignore any
source line containing a reference to log4j, for the
purposes of coverage reporting.
-->
<ignore regex="org.apache.log4j.*" />
<fileset dir="${classes.dir}">
<!--
Instrument all the application classes, but
don't instrument the test classes.
-->
<include name="**/*.class" />
<exclude name="**/*Test.class" />
</fileset>
</cobertura-instrument>
</target>
<target name="test" depends="init,compile">
<echo>${basedir}cobertura.ser</echo>
<junit fork="yes" dir="test" showoutput="yes" printsummary="yes" reloading="false">
<sysproperty key="net.sourceforge.cobertura.datafile"
file="${basedir}cobertura.ser" />
<!--
Note the classpath order: instrumented classes are before the
original (uninstrumented) classes. This is important.
-->
<classpath location="${instrumented.dir}" />
<classpath location="${classes.dir}" />
<!--
The instrumented classes reference classes used by the
Cobertura runtime, so Cobertura and its dependencies
must be on your classpath.
-->
<classpath refid="cobertura.classpath" />
<formatter type="xml" />
<test name="${testcase}" todir="${reports.xml.dir}" if="testcase" />
<batchtest todir="${reports.xml.dir}" unless="testcase">
<fileset dir="test">
<include name="**/*Test.java" />
</fileset>
</batchtest>
</junit>
<!-- JUnit Report in HTML -->
<junitreport todir="${reports.xml.dir}">
<fileset dir="${reports.xml.dir}">
<include name="TEST-*.xml" />
</fileset>
<report format="frames" todir="${reports.html.dir}" />
</junitreport>
</target>
<target name="coverage-check">
<cobertura-check branchrate="34" totallinerate="100" />
</target>
<target name="coverage-report">
<!--
Generate an XML file containing the coverage data using
the "srcdir" attribute.
-->
<cobertura-report srcdir="${src.dir}" destdir="${coverage.xml.dir}" format="xml" />
</target>
<target name="summary-coverage-report">
<!--
Generate an summary XML file containing the coverage data using
the "srcdir" attribute.
-->
<cobertura-report srcdir="${src.dir}" destdir="${coverage.summaryxml.dir}" format="summaryXml" />
</target>
<target name="alternate-coverage-report">
<!--
Generate a series of HTML files containing the coverage
data in a user-readable form using nested source filesets.
-->
<cobertura-report destdir="${coverage.html.dir}">
<fileset dir="${src.dir}">
<include name="**/*.java"/>
</fileset>
</cobertura-report>
</target>
<target name="clean" description="Remove all files created by the build/test process.">
<delete dir="${classes.dir}" />
<delete dir="${instrumented.dir}" />
<delete dir="${reports.dir}" />
<delete file="cobertura.log" />
<delete file="cobertura.ser" />
</target>
<target name="coverage" depends="compile,instrument,test,coverage-report,summary-coverage-report,alternate-coverage-report" description="Compile, instrument ourself, run the tests and generate JUnit and coverage reports."/>
</project>
但是当我运行构建时，我得到0%的覆盖率。
直到instrument目标，我相信一切看起来都很好。但是，当构建运行Test目标时，测试失败。不知道为什么会这样。如果在ant之外运行测试，则会成功。
有什么建议，我可以看看解决这个问题?
我得到以下错误时，我运行test目标
test:
[junit] Running org.jtaddeus.playground.LogicTest
[junit] Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.141 sec
[junit] Test org.jtaddeus.playground.LogicTest FAILED
[junit] Running org.jtaddeus.playground.ValidatorTest
[junit] Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.14 sec
[junit] Test org.jtaddeus.playground.ValidatorTest FAILED
我终于找到了解决办法(不是答案)
跟踪Junit报告后，我发现这与Junit依赖有关。
我只是从构建路径中删除了Junit-4库，并将Junit-4.7.jar添加到构建路径中，你知道它是如何工作的。
如果有人告诉我为什么会发生这种情况，我会非常感激。
如果我再次使用Junit-4.11.jar，同样的失败。报告中的Junit错误显示error message="org/hamcrest/SelfDescribing" type="java.lang.NoClassDefFoundError">java.lang.NoClassDefFoundError: org/hamcrest/SelfDescribing