尽管满足工作要求，Cobertura 仍报告 0% 的覆盖率

Question

是的，这是另一个 0% 覆盖率的东西。我已检查并确认以下内容：

1) ...根据http://cobertura.sourceforge.net/faq.html，该程序确实正在生成适当的 cobertura.ser 文件，并且该文件和 Instrumented 目录的内容已消失。

2) ...“instrumented”是 Cobertura 测试中确定的第一个类路径。

3) ...这些行确实正在我的测试套件中进行测试，并且...

4) ...确实正在创建并写入“instrumented”目录——我看到了这种情况。

奇怪的是，我注意到 Ant 生成的报告只不过是一系列消息，内容如下：

Testcase: pluralizeIt[0] took 0.004 sec
    Caused an ERROR
Instruction type does not match stack map in method StringUtil.main([Ljava/lang/String;)V at offset 50
java.lang.VerifyError: Instruction type does not match stack map in method StringUtil.main([Ljava/lang/String;)V at offset 50
    at PluralTest.pluralizeIt(PluralTest.java:55)

但如果我注释掉所有 Cobertura 引用和目标，测试运行良好，并且 Ant 报告在成功和失败方面给了我 100% 的预期。

我的 build.xml 文件在下面...有什么想法吗？？？谢谢....

<?xml version="1.0" encoding="UTF-8"?>
<project name="TestPlurazliation" default="coverage" basedir=".">
    <property name="src" location="src" />
    <property name="build" location="bin" />
    <property name="cobertura" location="/Users/Dauber/Desktop/cobertura-1.9.4.1" />
    <property name="instrumented" location="instrumented" />
    <property name="coverage.xml" location="coverage-xml" />
    <property name="coverage.html" location="coverage-html" />
    <path id="cobertura.classpath">
        <fileset dir="${cobertura}">
            <include name="cobertura.jar" />
            <include name="lib/**/*.jar" />
        </fileset>
    </path>

    <taskdef classpathref="cobertura.classpath" resource="tasks.properties" />

    <target name="init">
        <tstamp />
        <mkdir dir="${build}" />
    </target>

    <target name="compile" depends="init">
        <javac srcdir="/Volumes/Junk/Java projects/SE433/TestingPluralization/src" includeantruntime="false" debug="on" destdir="${build}">
            <classpath location="/Users/Dauber/Desktop/junit-4.10.jar" />
        </javac>
    </target>

    <target name="PluralizationTest" depends="compile">
        <junit printsummary="yes" fork="yes" haltonfailure="yes">
            <classpath location="/Users/Dauber/Desktop/junit-4.10.jar" />
            <classpath location="${build}" />
            <formatter type="plain" />
            <test name="PluralTest" />
        </junit>
    </target>

    <target name="instrument" depends="init,compile">
        <delete file="cobertura.ser" />
        <delete dir="${instrumented}" />
        <cobertura-instrument todir="${instrumented}">
            <ignore regex="org.apache.log4j.*" />
            <fileset dir="bin">
                <include name="**/*.class" />
                <exclude name="**/*Test*.class" />
            </fileset>
        </cobertura-instrument>
    </target>

    <target name="PluralizationTest2" depends="init,compile">
        <junit fork="yes">
            <classpath location="${instrumented}" />
            <classpath location="${build}" />
            <classpath location="/Users/Dauber/Desktop/junit-4.10.jar" />
            <classpath refid="cobertura.classpath" />
            <formatter type="plain" />
            <test name="PluralTest" />
        </junit>
    </target>

    <target name="coverage-report-xml">
        <cobertura-report srcdir="${src}" destdir="${coverage.xml}" format="xml" />
    </target>

    <target name="coverage-report-html">
        <cobertura-report srcdir="${src}" destdir="${coverage.html}"/>
    </target>

    <target name="coverage" depends="compile,instrument,PluralizationTest2,coverage-report-xml,coverage-report-html"  />

    <target name="clean" description="clean up" >
        <delete dir="${build}"/>
        <delete dir="${instrumented}"/>
    </target>

</project>

Answer 1

如果您使用的是 JDK 7，则需要添加 UseSplitVerifier JVM 参数：

<jvmarg value="-XX:-UseSplitVerifier"/>

（注意：我将其添加为 cmets 的答案，以便其他人可以轻松找到解决方案。）