We are getting error: Code coverage error:
[jacoco:coverage] Enhancing java with coverage
[java] Error: Could not find or load main class **\*.class
[java] Java Result: 1
[jacoco:coverage] Enhancing junit with coverage
[junit] Test **/*Test FAILED
我们正在使用jacoco代理进行代码覆盖率报告并使用ant这表明构建成功，但是jacoco.exec仅1 kb，并且在编译时出现错误，这就是为什么我们在build.xml中对此进行注释的原因，而错误也。
我的build.xml看起来像：
<?xml version="1.0" encoding="UTF-8"?>
<!--
Copyright (c) 2009, 2016 Mountainminds GmbH & Co. KG and Contributors
All rights reserved. This program and the accompanying materials
are made available under the terms of the Eclipse Public License v1.0
which accompanies this distribution, and is available at
http://www.eclipse.org/legal/epl-v10.html
Contributors:
Marc R. Hoffmann - initial API and implementation
-->
<project name="Example Ant Build with JaCoCo" xmlns:if="ant:if" xmlns:unless="ant:unless" default="rebuild" xmlns:jacoco="antlib:org.jacoco.ant">
<description>
Example Ant build file that demonstrates how a JaCoCo coverage report
can be itegrated into an existing build in three simple steps.
</description>
<property file="code-coverage.properties"/>
<property name="result.dir" location="${result.dir}" />
<property name="src.dir" location="${src.home}" />
<property name="result.classes.dir" location="${classes.dir}" />
<property name="result.report.dir" location="${result.dir}/site/jacoco" />
<property name="result.exec.file" location="${exec.path}/jacoco.exec" />
<!-- Step 1: Import JaCoCo Ant tasks -->
<taskdef uri="antlib:org.jacoco.ant" resource="org/jacoco/ant/antlib.xml">
<classpath path="${jacoco.home}/lib/jacocoant.jar" />
</taskdef>
<!--<target name="clean" description="Builds jacoco report.">
<delete dir="${result.dir}" />
</target>-->
<!--<target name="compile">
<mkdir dir="${result.classes.dir}" />
<javac srcdir="${src.dir}" destdir="${result.classes.dir}" debug="true" includeantruntime="false" />
</target> -->
<path id="classpath.test">
<pathelement location="${jacoco.home}/lib/junit4-4.8.2.jar" />
</path>
<target name="test">
<!-- Step 2: Wrap test execution with the JaCoCo coverage task -->
<jacoco:coverage destfile="${result.exec.file}">
<java classname="**/*.class" fork="true">
<classpath>
<pathelement location="${result.classes.dir}"/>
</classpath>
</java>
</jacoco:coverage>
<!-- Step 2: Wrap test execution with the JaCoCo coverage task -->
<jacoco:coverage>
<junit fork="true" forkmode="once">
<test name="**/*Test" filtertrace="true"/>
<classpath path="${result.classes.dir}"/>
</junit>
</jacoco:coverage>
</target>
<target name="report" depends="test">
<!-- Step 3: Create coverage report -->
<jacoco:report>
<!-- This task needs the collected execution data and ... -->
<executiondata>
<file file="${result.exec.file}" />
</executiondata>
<!-- the class files and optional source files ... -->
<structure name="JaCoCo Ant Example">
<classfiles>
<fileset dir="${result.classes.dir}" />
</classfiles>
<sourcefiles encoding="UTF-8">
<fileset dir="${src.dir}">
<include name="**/*.java"/>
</fileset>
</sourcefiles>
</structure>
<!-- to produce reports in different formats. -->
<html destdir="${result.report.dir}" />
<csv destfile="${result.report.dir}/report.csv" />
<xml destfile="${result.report.dir}/report.xml" />
</jacoco:report>
</target>
<target name="rebuild" depends="test,report" />
</project>
最佳答案
<java classname="xxx">部分告诉JaCoCo实际运行您的应用程序。因此需要成为具有您的main方法的类：不仅仅是**/*.class。那里不接受通配符。
有关示例，请参见http://www.eclemma.org/jacoco/trunk/doc/ant.html。
关于java - Jacoco代码覆盖率，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/39790395/