Dear Echo, JaCoCo comes with its own build. If you want to to build a modified version of JaCoCo I recommend running this build:
http://www.jacoco.org/jacoco/trunk/doc/build.html The artifacts produced by our build are tested and do support offline instrumentation. Regards, -marc On 2017-11-14 09:33, Echo Zhang wrote: > DEAR MARC > Thanks for this quick response. > Because i need to read the source code , i download the code from the > GitHub(https://github.com/jacoco/jacoco). Then i compile the code to generate > the jar > jacocoant.JAR. I am sure i didn't add some statements that can influence the > original source code. In fact ,the on-the fly instrumentation is OK and I can > run it successfully. But when i use offline instrumentation ,it will have the > above errors. > And about the JACOCOAGENT.JAR, i use both the official version and the Github > source code version. I use AGENT .RT FOLDER(shown in the following picture) > to generate the JACOCOAGENT.JAR. I thougnt maybe it's the problem about the > version, so i also tried several official version ,but it didn't work. > > And about JACOCOANT.JAR,i use the AGENT ANT CORE REPORT ASM folders to > genearate JACOCOANT.JAR(it is the same as the official version ). I will show > them in the following. > > [3] > > The reason why i dont use the official version is that i need add some > statements into the source code to finish an experiment. > > Regards, > -Echo > > 在 2017年11月14日星期二 UTC+8下午2:05:34，Echo Zhang写道： > >> 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$AppClassLoader.loadClass(Launcher.java:331) >> [java] at java.lang.ClassLoader.loadClass(ClassLoader.java:357) >> [java] ... 2 more >> [java] Java Result: 1 >> report: >> [jacoco:report] Loading execution data file E:\Jacoco\target\jacoco.exec >> >> BUILD FAILED >> E:\Jacoco\build.xml:73: Unable to read execution data file >> E:\Jacoco\target\jacoco.exec >> >> Total time: 781 milliseconds >> >> My build.xml is following. >> <?xml version="1.0" encoding="UTF-8"?> >> >> <!-- >> Copyright (c) 2009, 2017 Mountainminds GmbH & Co. KG and Contributors >> All rights reserved. This program and the accompanying materials >> are made available under the terms of the Eclipse Public License v1.0 >> which accompanies this distribution, and is available at >> http://www.eclipse.org/legal/epl-v10.html [1] >> >> Contributors: >> Marc R. Hoffmann - initial API and implementation >> --> >> <!-- offline--> >> <project name="Example Ant Build with JaCoCo Offline Instrumentation" >> default="rebuild" xmlns:jacoco="antlib:org.jacoco.ant"> >> >> <description> >> Example Ant build file that demonstrates how JaCoCo can be used with >> offline instrumentation. This requires preprocessing of the class files >> before the test is launched and adding the JaCoCo agent to the classpath. >> </description> >> >> <property name="src.dir" location="./src" /> >> <property name="result.dir" location="./target" /> >> <property name="result.classes.dir" location="${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> >> [2] >> >> Regrads >> >> echo > > -- > You received this message because you are subscribed to the Google Groups > "JaCoCo and EclEmma Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/jacoco/7d1d8463-e44d-48a4-92ba-71d006a87bd9%40googlegroups.com > [4]. > For more options, visit https://groups.google.com/d/optout. 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