Hi,All.
I am using ant to invoke Jacoco in my project. when i use the on-the-fly,
it's OK. But when i use the Offline Instrumentation, i will getting the
following error. All the jar are present in the lib/ folder. I have been
confused several days.
Buildfile: E:\Jacoco\build.xml
clean:
[delete] Deleting directory E:\Jacoco\target
compile:
[mkdir] Created dir: E:\Jacoco\target\classes
[javac] Compiling 2 source files to E:\Jacoco\target\classes
instrument:
[jacoco:instrument] Instrumented 2 classes to E:\Jacoco\target\classes-instr
test:
[java] Exception in thread "main" java.lang.NoClassDefFoundError:
$jacoco/runtime/package/name$/Offline
[java] at HelloTest.$jacocoInit(HelloTest.java)
[java] at HelloTest.main(HelloTest.java)
[java] Caused by: java.lang.ClassNotFoundException: $jacoco.runtime.
package.name$.Offline
[java] at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
[java] at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
[java] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
[java] at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
[java] ... 2 more
[java] Java Result: 1
report:
[jacoco:report] Loading execution data file E:\Jacoco\target\jacoco.exec
BUILD FAILED
E:\Jacoco\build.xml:73: Unable to read execution data file E:\Jacoco\target\
jacoco.exec
Total time: 781 milliseconds
My build.xml is following.
<?xml version="1.0" encoding="UTF-8"?>
<!--
Copyright (c) 2009, 2017 Mountainminds GmbH & Co. KG and Contributors
All rights reserved. This program and the accompanying materials
are made available under the terms of the Eclipse Public License v1.0
which accompanies this distribution, and is available at
http://www.eclipse.org/legal/epl-v10.html
Contributors:
Marc R. Hoffmann - initial API and implementation
-->
<!-- offline-->
<project name="Example Ant Build with JaCoCo Offline Instrumentation"
default="rebuild" xmlns:jacoco="antlib:org.jacoco.ant">
<description>
Example Ant build file that demonstrates how JaCoCo can be used with
offline instrumentation. This requires preprocessing of the class files
before the test is launched and adding the JaCoCo agent to the classpath.
</description>
<property name="src.dir" location="./src" />
<property name="result.dir" location="./target" />
<property name="result.classes.dir" location="${result.dir}/classes" />
<property name="result.classes.instr.dir" location="${result.dir}/classes-
instr" />
<property name="result.report.dir" location="${result.dir}/site/jacoco" />
<property name="result.exec.file" location="${result.dir}/jacoco.exec" />
<!-- Step 1: Import JaCoCo Ant tasks -->
<taskdef uri="antlib:org.jacoco.ant" resource="org/jacoco/ant/antlib.xml">
<classpath path="./lib/jacocoant.jar" />
</taskdef>
<target name="clean">
<delete dir="${result.dir}" />
</target>
<target name="compile">
<mkdir dir="${result.classes.dir}" />
<javac srcdir="${src.dir}" destdir="${result.classes.dir}" debug="true"
includeantruntime="false" />
</target>
<target name="instrument" depends="compile">
<!-- Step 2: Instrument class files -->
<!-- jacoco:instrument见antlib.xml定义-->
<jacoco:instrument destdir="${result.classes.instr.dir}">
<fileset dir="${result.classes.dir}" />
</jacoco:instrument>
</target>
<target name="test" depends="instrument">
<!-- Step 3: Run tests with instrumented classes -->
<java classname="HelloTest" fork="true">
<!-- jacocoagent.jar must be on the classpath -->
<classpath>
<pathelement path="./lib/jacocoagent.jar"/>
<pathelement path="${result.classes.instr.dir}" />
</classpath>
<!-- Agent is configured with system properties -->
<sysproperty key="jacoco-agent.destfile" file="${result.exec.file}"/>
<arg value="2 * 3 + 4"/>
<arg value="2 + 3 * 4"/>
<arg value="(2 + 3) * 4"/>
<arg value="2 * 2 * 2 * 2"/>
<arg value="1 + 2 + 3 + 4"/>
<arg value="2 * 3 + 2 * 5"/>
</java>
</target>
<target name="report" depends="test">
<!-- Step 4: Create coverage report -->
<jacoco:report>
<!-- This task needs the collected execution data and ... -->
<executiondata>
<file file="${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}" />
</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="clean,compile,instrument,test,report" />
</project>
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Regrads
echo
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