Straightforward Jacoco setup fails to find "internal_e5875b2/Offline" classes
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David Karr
Jan 22, 2017, 3:57:44 PM1/22/17
to JaCoCo and EclEmma Users
Using the information at https://github.com/powermock/powermock/wiki/Code-coverage-with-JaCoCo and the offline example it links to, I set up jacoco in my largish maven multiproject build. The build has an overall parent pom that all the child modules inherit from, and there is a separate aggregator pom. I put the settings for jacoco in the parent pom.
The following is a paraphrased view of the parent pom, with some elements removed that I believe are irrelevant:
When I run the build at the top-level, or in one of the child modules, I see every test failing with the following:
Any ideas what might be wrong here?
The following is a paraphrased view of the parent pom, with some elements removed that I believe are irrelevant:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<properties>
<maven.compiler.target>1.8</maven.compiler.target>
<maven.compiler.source>1.8</maven.compiler.source>
<junit.version>4.11</junit.version>
<mockito.version>1.10.19</mockito.version>
<powermock.version>1.6.6</powermock.version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-core</artifactId>
<version>${mockito.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.powermock</groupId>
<artifactId>powermock-module-junit4</artifactId>
<version>${powermock.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.powermock</groupId>
<artifactId>powermock-api-mockito</artifactId>
<version>${powermock.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-core</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.powermock</groupId>
<artifactId>powermock-module-junit4</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.powermock</groupId>
<artifactId>powermock-api-mockito</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.maven.surefire</groupId>
<artifactId>surefire-junit4</artifactId>
<version>2.19.1</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
</plugins>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>0.7.8</version>
<executions>
<execution>
<id>default-instrument</id>
<goals>
<goal>instrument</goal>
</goals>
<configuration>
<dataFile>${project.build.directory}/coverage.exec</dataFile>
</configuration>
</execution>
<execution>
<id>default-restore-instrumented-classes</id>
<goals>
<goal>restore-instrumented-classes</goal>
</goals>
</execution>
<execution>
<id>report</id>
<phase>prepare-package</phase>
<goals>
<goal>report</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.19.1</version>
<configuration>
<forkCount>3</forkCount>
<aggregate>true</aggregate>
<reuseForks>true</reuseForks>
<argLine>-Xmx1024m</argLine>
<testSourceDirectory>${project.build.testSourceDirectory}</testSourceDirectory>
<includes>
<include>**/*Test.java</include>
</includes>
<systemPropertyVariables>
<jacoco-agent.destfile>${project.build.directory}/coverage.exec</jacoco-agent.destfile>
</systemPropertyVariables>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>
When I run the build at the top-level, or in one of the child modules, I see every test failing with the following:
java.lang.NoClassDefFoundError: org/jacoco/agent/rt/internal_e5875b2/OfflineAny ideas what might be wrong here?
Evgeny Mandrikov
Jan 23, 2017, 2:42:27 AM1/23/17
to JaCoCo and EclEmma Users
As stated on page http://www.jacoco.org/jacoco/trunk/doc/offline.html : "Unlike with on-the-fly instrumentation offline instrumented classes get a direct dependency on the JaCoCo runtime."
In our example at http://www.jacoco.org/jacoco/trunk/doc/examples/build/pom-offline.xml as well as in cited example at https://github.com/powermock/powermock-examples-maven/blob/master/jacoco-offline/pom.xml#L56-L61 there is such dependency, which you seem to be missed:
<dependency>
<groupId>org.jacoco</groupId>
<artifactId>org.jacoco.agent</artifactId>
<version>${jacoco.version}</version>
<classifier>runtime</classifier>
</dependency>
David Karr
Jan 30, 2017, 3:01:09 PM1/30/17
to JaCoCo and EclEmma Users
On Sunday, January 22, 2017 at 11:42:27 PM UTC-8, Evgeny Mandrikov wrote:
As stated on page http://www.jacoco.org/jacoco/trunk/doc/offline.html : "Unlike with on-the-fly instrumentation offline instrumented classes get a direct dependency on the JaCoCo runtime."In our example at http://www.jacoco.org/jacoco/trunk/doc/examples/build/pom-offline.xml as well as in cited example at https://github.com/powermock/powermock-examples-maven/blob/master/jacoco-offline/pom.xml#L56-L61 there is such dependency, which you seem to be missed:<dependency><groupId>org.jacoco</groupId><artifactId>org.jacoco.agent</artifactId><version>${jacoco.version}</version><classifier>runtime</classifier></dependency>
I'm still having trouble with this, even though I've added this dependency.
Here is an excerpt of my build output:
[INFO] --- jacoco-maven-plugin:0.7.8:instrument (default-instrument) @ usl-creditcheck-impl ---
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ usl-creditcheck-impl ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 32 resources
[INFO]
[INFO] --- maven-compiler-plugin:3.5.1:testCompile (default-testCompile) @ usl-creditcheck-impl ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 31 source files to C:\users\dk068x\git\oce_usl\usl-parent\usl-creditcheck-impl\target\test-classes
[INFO]
[INFO] --- maven-surefire-plugin:2.19.1:test (default-test) @ usl-creditcheck-impl ---
-------------------------------------------------------
T E S T S
-------------------------------------------------------
Running ...
Results :
Tests run: 70, Failures: 0, Errors: 0, Skipped: 0
[INFO]
[INFO] --- jacoco-maven-plugin:0.7.8:restore-instrumented-classes (default-restore-instrumented-classes) @ usl-creditcheck-impl ---
[INFO]
[INFO] --- jacoco-maven-plugin:0.7.8:report (default-report) @ usl-creditcheck-impl ---
[INFO] Skipping JaCoCo execution due to missing execution data file.
Here is a segment of the effective pom:
<dependencies>
...
<dependency>
<groupId>org.jacoco</groupId>
<artifactId>org.jacoco.agent</artifactId>
<version>0.7.8</version>
<classifier>runtime</classifier>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>0.7.8</version>
<executions>
<execution>
<id>default-instrument</id>
<goals>
<goal>instrument</goal>
</goals>
<configuration>
<dataFile>...\target/coverage.exec</dataFile>
</configuration>
</execution>
<execution>
<id>default-restore-instrumented-classes</id>
<goals>
<goal>restore-instrumented-classes</goal>
</goals>
</execution>
<execution>
<id>default-report</id>
<phase>prepare-package</phase>
<goals>
<goal>report</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.19.1</version>
<executions>
<execution>
<id>default-test</id>
<phase>test</phase>
<goals>
<goal>test</goal>
</goals>
<configuration>
<argLine>-Xmx1024m</argLine>
<includes>
<include>**/*Test.java</include>
</includes>
<systemPropertyVariables>
<jacoco-agent.destfile>...\target/coverage.exec</jacoco-agent.destfile>
</systemPropertyVariables>
</configuration>
</execution>
</executions>
<configuration>
<argLine>-Xmx1024m</argLine>
<includes>
<include>**/*Test.java</include>
</includes>
<systemPropertyVariables>
<jacoco-agent.destfile>...\target/coverage.exec</jacoco-agent.destfile>
</systemPropertyVariables>
</configuration>
</plugin>
</plugins>
</build>
</project>
What am I missing?
David Karr
Jan 30, 2017, 3:24:08 PM1/30/17
to JaCoCo and EclEmma Users
It seems clear this has something to do with a disconnect on the name of the ".exec" file to use. From my effective pom, I appear to be telling it to use "coverage.exec", but if I run with "-X" I see conflicting information that says it expects to find "jacoco.exec", like this:
[DEBUG] Configuring mojo 'org.jacoco:jacoco-maven-plugin:0.7.8:report' with basic configurator -->
[DEBUG] (f) dataFile = ...\target\jacoco.exec
[DEBUG] (f) outputDirectory = ...\target\site\jacoco
[DEBUG] -- end configuration --
[INFO] Skipping JaCoCo execution due to missing execution data file.
Evgeny Mandrikov
Jan 30, 2017, 3:44:01 PM1/30/17
to JaCoCo and EclEmma Users
Hi,
Notice that specification of "dataFile" in configuration for execution of "instrument" goal has no effect, because there is no such parameter - see http://www.jacoco.org/jacoco/trunk/doc/instrument-mojo.html
You need to specify "dataFile" for "report" goal.
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