Groovy Maven plugin, marking target stub as source directory - java

I am using gmavenplus-plugin, below is the configuration details
<plugin>
<groupId>org.codehaus.gmavenplus</groupId>
<artifactId>gmavenplus-plugin</artifactId>
<version>1.6</version>
<executions>
<execution>
<goals>
<goal>addSources</goal>
<goal>addTestSources</goal>
<goal>generateStubs</goal>
<goal>compile</goal>
<goal>generateTestStubs</goal>
<goal>compileTests</goal>
<goal>removeStubs</goal>
<goal>removeTestStubs</goal>
</goals>
</execution>
</executions>
</plugin>
After each time maven clean build, intellij's settings gets updated and it maker generated stub as source and test source folders. Ideally goal removeStubs and removeTestStubs should remove it from source. All examples on internet is based on above configuration only.
Am I missing something.

The way IntelliJ hooks into the GMavenPlus (and GMaven) lifecycle was by expecting specific goal names. 1.6 fixes this by renaming the goals to match IntelliJ's expectations.

Related

Getting Skipping JaCoCo execution due to missing execution data file [duplicate]

I'm using Maven 3.0.3, JUnit 4.8.1, and Jacoco 0.6.3.201306030806, and I am trying to create test coverage reports.
I have a project with unit tests only, but I can't get reports to run, I'm repeatedly getting the error: Skipping JaCoCo execution due to missing execution data file when I run:
mvn clean install -P test-coverage
Here is how my pom is configured:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.14.1</version>
<configuration>
<reuseForks>true</reuseForks>
<argLine>-Xmx2048m</argLine>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-failsafe-plugin</artifactId>
<version>2.14.1</version>
<configuration>
<reuseForks>true</reuseForks>
<argLine>-Xmx4096m -XX:MaxPermSize=512M ${itCoverageAgent}</argLine>
</configuration>
<executions>
<execution>
<goals>
<goal>integration-test</goal>
<goal>verify</goal>
</goals>
</execution>
</executions>
</plugin>
...
<profile>
<id>test-coverage</id>
<build>
<plugins>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>0.6.3.201306030806</version>
<configuration>
<destfile>${basedir}/target/coverage-reports/jacoco-unit.exec</destfile>
<datafile>${basedir}/target/coverage-reports/jacoco-unit.exec</datafile>
</configuration>
<executions>
<execution>
<id>prepare-unit-tests</id>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
<!-- prepare agent for measuring integration tests -->
<execution>
<id>prepare-integration-tests</id>
<goals>
<goal>prepare-agent</goal>
</goals>
<phase>pre-integration-test</phase>
<configuration>
<propertyName>itCoverageAgent</propertyName>
</configuration>
</execution>
<execution>
<id>jacoco-site</id>
<phase>verify</phase>
<goals>
<goal>report</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
All my tests run successfully. Here is some of the output from Maven:
[INFO] --- jacoco-maven-plugin:0.6.2.201302030002:prepare-agent (prepare-unit-tests) # myproject ---
[INFO] argLine set to -javaagent:/Users/davea/.m2/repository/org/jacoco/org.jacoco.agent/0.6.2.201302030002/org.jacoco.agent-0.6.2.201302030002-runtime.jar=destfile=/Users/davea/Dropbox/workspace/myproject/target/jacoco.exec
[INFO]
...
Tests run: 14, Failures: 0, Errors: 0, Skipped: 0
[INFO]
...
[INFO]
[INFO] --- jacoco-maven-plugin:0.6.2.201302030002:prepare-agent (prepare-integration-tests) # myproject ---
[INFO] itCoverageAgent set to -javaagent:/Users/davea/.m2/repository/org/jacoco/org.jacoco.agent/0.6.2.201302030002/org.jacoco.agent-0.6.2.201302030002-runtime.jar=destfile=/Users/davea/Dropbox/workspace/myproject/target/jacoco.exec
[INFO]
[INFO] --- maven-failsafe-plugin:2.14.1:integration-test (default) # myproject ---
[WARNING] File encoding has not been set, using platform encoding MacRoman, i.e. build is platform dependent!
[INFO]
[INFO] --- maven-failsafe-plugin:2.14.1:verify (default) # myproject ---
[INFO] Failsafe report directory: /Users/davea/Dropbox/workspace/myproject/target/failsafe-reports
[WARNING] File encoding has not been set, using platform encoding MacRoman, i.e. build is platform dependent!
[INFO]
[INFO] --- jacoco-maven-plugin:0.6.2.201302030002:report (jacoco-site) # myproject ---
[INFO] Skipping JaCoCo execution due to missing execution data file
[INFO]
Any ideas what configuration I'm missing?
jacoco-maven-plugin:0.7.10-SNAPSHOT
From jacoco:prepare-agent that says:
One of the ways to do this in case of maven-surefire-plugin - is to
use syntax for late property evaluation:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<argLine>#{argLine} -your -extra -arguments</argLine>
</configuration>
</plugin>
Note the #{argLine} that's added to -your -extra -arguments.
Thanks Slava Semushin for noticing the change and reporting in the comment.
jacoco-maven-plugin:0.7.2-SNAPSHOT
Following jacoco:prepare-agent that says:
[org.jacoco:jacoco-maven-plugin:0.7.2-SNAPSHOT:prepare-agent] Prepares a property pointing to the JaCoCo runtime agent that can be
passed as a VM argument to the application under test. Depending on
the project packaging type by default a property with the following
name is set:
tycho.testArgLine for packaging type eclipse-test-plugin and
argLine otherwise.
Note that these properties must not be overwritten by the
test configuration, otherwise the JaCoCo agent cannot be attached. If
you need custom parameters please append them. For example:
<argLine>${argLine} -your -extra -arguments</argLine>
Resulting
coverage information is collected during execution and by default
written to a file when the process terminates.
you should change the following line in maven-surefire-plugin plugin configuration from (note the ${argLine} inside <argLine>):
<argLine>-Xmx2048m</argLine>
to
<argLine>${argLine} -Xmx2048m</argLine>
Make also the necessary changes to the other plugin maven-failsafe-plugin and replace the following (again, notice the ${argLine}):
<argLine>-Xmx4096m -XX:MaxPermSize=512M ${itCoverageAgent}</argLine>
to
<argLine>${argLine} -Xmx4096m -XX:MaxPermSize=512M ${itCoverageAgent}</argLine>
I faced a bit of a different issue that returned the same error.
Skipping JaCoCo execution due to missing execution data /target/jacoco.exec
The truth is, this error is returned for many, many reasons.
We experimented with the different solutions on Stack Overflow, but found this resource to be best. It tears down the many different potential reasons why Jacoco could be returning the same error.
For us, the solution was to add a prepare-agent to the configuration.
<execution>
<id>default-prepare-agent</id>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
I would imagine most users will be experiencing it for different reasons, so take a look at the aforementioned resource!
One can also get "Skipping JaCoCo execution due to missing execution data file" error due to missing tests in project. For example when you fire up new project and have no *Test.java files at all.
There might a case where some other argline setup or plugin in pom may be overriding jacoco execution order setup.
argLine set to -javaagent:/Users/davea/.m2/repository/org/jacoco/org.jacoco.agent/0.6.2.201302030002/org.jacoco.agent-0.6.2.201302030002-runtime.jar=destfile=/Users/davea/Dropbox/workspace/myproject/target/jacoco.exec
One of the example
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.16</version>
<configuration>
<forkCount>5</forkCount>
<reuseForks>true</reuseForks>
<argLine>-Dnet.sf.ehcache.disabled=true</argLine>
</configuration>
</plugin>
After getting rid of argLine from these plugins, jacoco started to work normally.
I know this question is pretty old but if someone like me comes here looking for an answer then this might help. I have been able to overcome the above error with this.
1) Remove the below piece of code from the plugin maven-surefire-plugin
<reuseForks>true</reuseForks>
<argLine>-Xmx2048m</argLine>
2) Add the below goal:
<execution>
<id>default-prepare-agent</id>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
I've tried all answers but only the following combination of advice has worked for me. Why? I had very specific requirements:
JaCoCo generates report when build is run from command line: mvn clean verify (Maven 3.6.0)
Intellij IDEA (2019.01) runs my tests as well
It all works in presence of another javaagent defined in surefire plugin
Solution - prepend argLine value in surefire configuration with "late replacement" maven property #{...} as explained in surefire FAQ (my fixed configuration)
How do I use properties set by other plugins in argLine?
Maven does property replacement for
${...}
values in pom.xml before any plugin is run. So Surefire would never see the place-holders in its argLine property.
Since the Version 2.17 using an alternate syntax for these properties,
#{...}
allows late replacement of properties when the plugin is executed, so properties that have been modified by other plugins will be picked up correctly.
Failed first try - define jaCoCoArgLine property in prepare-agent goal configuration of jacoco - the scenario failed my second requirement, IntelliJ IDEA couldn't figure out agent for jmockit I use in the project for static method mocking
When using the maven-surefire-plugin or maven-failsafe-plugin you must not use a forkCount of 0 or set the forkMode to never as this would prevent the execution of the tests with the javaagent set and no coverage would be recorded.
ref: https://www.eclemma.org/jacoco/trunk/doc/maven.html
this is my gist
I was having the same issue. I updated the Jacoco version from 0.6 to 0.8 and updated surefire plugin as well. The following command generated Jacoco reports in site/jacoco/ folder:
mvn clean jacoco:prepare-agent install jacoco:report
My maven configurations are as follows:
<plugins>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>0.8.6</version>
<executions>
<execution>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
<execution>
<id>jacoco-report</id>
<phase>test</phase>
<goals>
<goal>report</goal>
</goals>
</execution>
<execution>
<id>jacoco-check</id>
<goals>
<goal>check</goal>
</goals>
<configuration>
<rules>
<rule>
<element>PACKAGE</element>
<limits>
<limit>
<counter>LINE</counter>
<value>COVEREDRATIO</value>
<minimum>0.0</minimum>
</limit>
</limits>
</rule>
</rules>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>3.0.0-M5</version>
<configuration>
<forkedProcessExitTimeoutInSeconds>60</forkedProcessExitTimeoutInSeconds>
<forkCount>1</forkCount>
</configuration>
</plugin>
</plugins>
Came accross the same problem just now.
I have a class named HelloWorld, and I created a test class for it named HelloWorldTests, then I got the output Skipping JaCoCo execution due to missing execution data file.
I then tried to change my pom.xml to make it work, but the attempt failed.
Finally, I simply rename HelloWorldTests to HelloWorldTest, and it worked!
So I guess that, by default, jacoco only recognizes test class named like XxxTest, which indicates that it's the test class for Xxx. So simply rename your test classes to this format should work!
FWhat tdrury said:
change your plugin configuration into this:
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>0.6.3.201306030806</version>
<executions>
<!-- prepare agent for measuring integration tests -->
<execution>
<id>prepare-integration-tests</id>
<phase>pre-integration-test</phase>
<goals>
<goal>prepare-agent</goal>
</goals>
<configuration>
<destFile>${basedir}/target/coverage-reports/jacoco-unit.exec</destFile>
</configuration>
</execution>
<execution>
<id>jacoco-site</id>
<phase>post-integration-test</phase>
<goals>
<goal>report</goal>
</goals>
<configuration>
<dataFile>${basedir}/target/coverage-reports/jacoco-unit.exec</dataFile>
</configuration>
</execution>
</executions>
</plugin>
Edit:
Just noticed one important thing, destFile and dataFile seems case sensitive so it's supposed to be destFile, not destfile.
I struggled for days. I tried all the different configurations suggested in this thread. None of them works. Finally, I find only the important configuration is the prepare-agent goal. But you have to put it in the right phase. I saw so many examples put it in the "pre-integration-test", that's a misleading, as it will only be executed after unit test. So the unit test won't be instrumented.
The right config should just use the default phase, (don't specify the phase explicitly). And usually, you don't need to mass around maven-surefire-plugin.
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>0.8.4</version>
<executions>
<execution>
<id>default-prepare-agent</id>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
<execution>
<id>jacoco-site</id>
<phase>post-integration-test</phase>
<goals>
<goal>report</goal>
</goals>
</execution>
</executions>
</plugin>
Try to use:
mvn jacoco:report -debug
to see the details about your reporting process.
I configured my jacoco like this:
<configuration>
<dataFile>~/jacoco.exec</dataFile>
<outputDirectory>~/jacoco</outputDirectory>
</configuration>
Then mvn jacoco:report -debug shows it using the default configuration, which means jacoco.exec is not in ~/jacoco.exec. The error says missing execution data file.
So just use the default configuration:
<execution>
<id>default-report</id>
<goals>
</goals>
<configuration>
<dataFile>${project.build.directory}/jacoco.exec</dataFile>
<outputDirectory>${project.reporting.outputDirectory}/jacoco</outputDirectory>
</configuration>
</execution>
And everything works fine.
I know this is late, but just for anyone else who has this issue and nothing seems to fix it (like I had). Make sure that in you pom, your configuration for jacoco inside plugins is not in turn inside pluginManagement. It seems some sort of default for maven is to put the plugins inside pluginManagement. This is almost unnoticeable until you try to add detailed configurations like for jacoco. In order to add these, you need to add them outside of the pluginManagement, otherwise they are effectively ignored. See my poms below for details.
My old pom (that gave the "Skipping jacoco ..." message):
<project>
...
<build>
<pluginManagement>
<plugins>
...
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>0.8.2</version>
<executions>
<execution>
<id>default-prepare-agent</id>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
<execution>
<id>default-report</id>
<phase>test</phase>
<goals>
<goal>report</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>
My new pom (that now compiles a working jacoco report):
<project>
...
<build>
<pluginManagement>
<plugins>
...
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>0.8.2</version>
</plugin>
</plugins>
</pluginManagement>
<plugins>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<executions>
<execution>
<id>default-prepare-agent</id>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
<execution>
<id>default-report</id>
<phase>test</phase>
<goals>
<goal>report</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
It happens if the path of your project has blank spaces anywhere, such as:
/home/user/my projects/awesome project
the report is not generated. If that is the case, remove those spaces from directory names, such as:
/home/user/my-projects/awesome-project
or move the project to a directory that doesn't have spaces along the way.
About the plugin configuration, I just needed the basic as below:
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>0.8.5</version>
<executions>
<execution>
<id>jacoco-initialize</id>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
<execution>
<id>jacoco-report</id>
<goals>
<goal>report</goal>
</goals>
</execution>
</executions>
</plugin>
Jacoco Execution data file is a jacoco.exec file which is generated when prepare agent goal is running. When It isn't generated or the correct path isn't set in configuration, you will get that error message. Because Jacoco use It to build test coverage. This usually occur when you use jacoco maven plugin and surfire or failsafe. To ensure that the jacoco.exec file is generated, you have to add argline in you pom.xml file, not in the surfire configuration but inside a properties tag in you pom.xml file.
<properties>
<argLine>-Xmx2048m</argLine>
</properties>
The execution says it's putting the jacoco data in /Users/davea/Dropbox/workspace/myproject/target/jacoco.exec but your maven configuration is looking for the data in ${basedir}/target/coverage-reports/jacoco-unit.exec.
I have added a Maven/Java project with 1 Domain class with the following features:
Unit or Integration testing with the plugins Surefire and Failsafe.
Findbugs.
Test coverage via Jacoco.
Where are the Jacoco results? After testing and running 'mvn clean', you can find the results in 'target/site/jacoco/index.html'. Open this file in the browser.
Enjoy!
I tried to keep the project as simple as possible. The project puts many suggestions from these posts together in an example project. Thank you, contributors!
My response is very late but for others users
In your case you have to configure failsafe pluging to use the command line agent configuration saved in itCoverageAgent variable.
For exemple
<configuration>
<argLine>${itCoverageAgent}</argLine>
</configuration>
In your maven configuration, jacoco prepare the command line arguments in prepare-agent phase, but failsafe plugin doesn't use it so there is no execution data file.
Sometimes the execution runs first time, and when we do maven clean install it doesn't generate after that.
The issue was using true for skipMain and skip properties
under maven-compiler-plugin of the main pom File.
Remove them if they were introduced as a part of any issue or suggestion.
In my case, the prepare agent had a different destFile in configuration, but accordingly the report had to be configured with a dataFile, but this configuration was missing. Once the dataFile was added, it started working fine.
I faced similar error because tests execution were skipped.
I ran my build with similar system parameter : -Dmaven.test.skip.exec=true
Turning this system parameter to false solved the issue.
I just removed following two lines from properties tag
<jacoco.ut.reportPath>${project.basedir}/../target/jacoco.exec</jacoco.ut.reportPath>
<sonar.jacoco.reportPaths>${project.basedir}/target/jacoco.exec</sonar.jacoco.reportPaths>
mvn install -Psonar by default creates jacoco.exec in target directory, so explicit path was not needed in my case.
For others that met similar problem, here is another possible solution:
Our project was running in a Traditional Chinese version of Windows, and when we checked prepare-agent section in maven log, we found that it tried to read the project folder which we put on desktop, through \桌面\...\project\... instead of \Desktop\...\project\.... I think UTF-8 symbol in paths make Jacoco go weird. We moved the project into other place and the issue was fixed.
TL;DR:
Check prepare-agent logs too as jacoco.exec was prepared during that.
2 Other Possibilities
JaCoCo's Maven plugin could be better integrated with Maven to provide more information about it's invocation and incorrect invocations. Nonetheless.
Possibility #1: Custom Arguments In Surefire plugin
Using JPMS module for my project with standard Maven directory layout, basic JSE 11 program, JUnit 5 & JaCoCo, with Eclipse and single module-info.java file (Eclipse 4.13 won't allow 2 module-info.java files in the project's root of the classpath). In order for Surefire to see my test cases I had to use the single <argLine> tag to allow Surefire to gain access using: --add-opens for all of the packages having unit tests:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.2</version>
<configuration>
<argLine>
#{argLine}
--add-opens module_name/com.myco.project=ALL-UNNAMED
--add-opens module_name/com.myco.project.more=ALL-UNNAMED
--add-opens module_name/com.myco.project.others=ALL-UNNAMED
</argline>
</configuration>
...
</plugin>
According to Jacoco documentation, you have to directly pass the Jacoco arguments to Surefire since specifying any Surefire arguments using <argLine> overrides Jacoco's defaults. Jacoco's online Maven documentation specifies using #{argLine} to pass Jacoco's arguments to Surefire (https://www.jacoco.org/jacoco/trunk/doc/prepare-agent-mojo.html).
Possibility #2: Intermingling Plugins
I also use the maven-javadoc plugin in my <reporting/> section. Incidentally, during the Javadoc reporting phase, it manages to invoke the prepare-agent goal of JaCoCo and gives the OP's error message shortly thereafter (according to maven debug, specifically while the maven-project-info-reports-plugin is configuring the reports to begin generating for maven site) - this despite the fact that my Test phase has already run and dumped a proper jacoco.exec file in the build output directory. It may be safe to ignore this warning, my JaCoCo report renders fine in my Maven Site. However, if you're seeing it during the execution of a JaCoCo goal, it probably shouldn't be ignored.
Tips
If you're having doubts about the file getting created, watch the directory where the file is supposed to appear during the build. Generating the file is a fairly slow process. See my other answer here: https://stackoverflow.com/a/75465187/2336934
Do your best to keep to all the defaults as much as possible, simpler is better.

Handle different source folder in Eclipse

The Project I am working on has the regular src/main and src/test folders, but they recently introduced src/integration-test, which is supposed to contain, as the name suggests, integration-tests.
Unfortunately I can't seem to make this work with Maven and Eclipse. I tried adding a source folder, but Eclipse is not able to resolve the dependencies needed for the integration-tests and fails to compile the test-classes. I also can't start the tests with JUnit.
The source folder was added to the build path, but it did not help.
All other developers in my team use IntelliJ and report that they don't have these issues at all. But it´s bound to work with Eclipse as well, right?
You should handle this with maven by adding the source folder to the build:
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<version>3.0.0</version>
<executions>
<execution>
<id>add-test-source</id>
<phase>generate-test-sources</phase>
<goals>
<goal>add-test-source</goal>
</goals>
<configuration>
<sources>
<source>src/integration</source>
</sources>
</configuration>
</execution>
</executions>
</plugin>
In this example the build will add a src/integration folder where you can put other test classes.
For more information check the build helper plugin documentation.

Retrieve dependencies source code in maven project

In my maven project I have plenty of dependencies which source code I need to get.
I know there is maven-dependency plugin with unpack-dependencies goal in it
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.10</version>
<executions>
<execution>
<id>resolve-dependecies</id>
<phase>process-sources</phase>
<goals>
<goal>sources</goal>
</goals>
<configuration>
<classifier>sources</classifier>
<includeParents>true</includeParents>
<type>java-source</type>
</configuration>
</execution>
<execution>
<id>src-dependencies</id>
<phase>process-sources</phase>
<goals>
<goal>unpack-dependencies</goal>
</goals>
<configuration>
<classifier>sources</classifier>
<failOnMissingClassifierArtifact>false</failOnMissingClassifierArtifact>
<outputDirectory>${project.basedir}/Utils/src</outputDirectory>
<type>java-source</type>
</configuration>
</execution>
</executions>
</plugin>
But when I use it a lot files "have NOT been resolved".
e.g.
...
org.jboss:jboss-parent:java-source:sources:5
org.apache.cxf:cxf-parent:java-source:sources:3.0.3
org.apache:apache:java-source:sources:13
org.apache:apache:java-source:sources:9
org.liquibase:liquibase-parent:java-source:sources:3.5.0
org.apache.commons:commons-parent:java-source:sources:5
org.eclipse.jetty.orbit:jetty-orbit:java-source:sources:1
...
In pom.xml I didn't specify any repository for dependencies, so by default maven central repository is using.
I also tried to decompile (Fernflower, Procyon, JAD projects) my project jar file which contains all dependencies. But after decompiling hundreds of errors appeared in result java files.
I still hope to solve this issue using maven tools.
Thanks in advance for any help.
EDIT
Unresolved artifacts directly not specified in pom.xml
I see a couple of dependencies with *-parent. Given the name I guess these are merely parent poms which probably don't contain any java sources. For the remaining ones, are you sure that there are artifacts with the java sources?
UPDATE: I checked the list you shown within your question whether there are sources and there weren't. What I noted is that all of them have packaging POM. You might skip these by including <includeClassifiers>sources</includeClassifier> within your configuration

Maven checkstyle https configuration

I have the following maven check style plugin configuration
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-checkstyle-plugin</artifactId>
<configuration>
<consoleOutput>true</consoleOutput>
<configLocation>https://someUtl.com/file.xml</configLocation>
</configuration>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>check</goal>
</goals>
</execution>
</executions>
</plugin>
Pay attention on
<configLocation>https://someUtl.com/file.xml</configLocation>
file.xml can be downloaded by browser, but it require a login and password. Is there a way to specify these login/password in maven or in plugin configuration?
Underneath, this uses Plexus which in turn pretty much does URL.openStream().
This answer shows how an Authenticator can be used for that in Java code, but I was unable to find a Maven equivalent for that. I'm inclined to say that it's not possible.
Alternatively, you might be able to download the file in a separate mojo execution, then point the configLocation to the downloaded file, which could be anywhere down your target folder.
I think that this answer gives a few nice ideas about how to download files in Maven. Their first is that if your file is a Maven artifact, you could use the Maven Dependency Plugin.
And then we come full circle, because if your Checkstyle configuration were to be contained in a Maven artifact, you would not have to set configLocation to a remote location, but you'd add that artifact as a dependency of your Checkstyle plugin execution. Since Maven defines everything in terms of dependencies, that is my way to go, and that is exactly how I set up my own Checkstyle configurations.
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-checkstyle-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>check</goal>
</goals>
</execution>
</executions>
<dependencies>
<dependency>
<groupId>com.totaalsoftware.incidentmanager</groupId>
<artifactId>checkstyle-config</artifactId>
<version>2.0.0-SNAPSHOT</version>
</dependency>
</dependencies>
<configuration>
<configLocation>checkstyle.config.xml</configLocation>
...
</configuration>
</plugin>
Clearly, in the above example, checkstyle.config.xml resides in the root of the checkstyle-config JAR.

org.codehaus.mojo not visible in Eclipse

I get an error in my pom.xml, saying:
Plugin execution not covered by lifecycle configuration: org.codehaus.mojo:build-helper-maven-plugin:1.4:add-source (execution: add-generated-sources, phase: process-sources)
Here is an extract of my pom.xml:
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<executions>
<execution>
<id>add-generated-sources</id>
<phase>process-sources</phase>
<goals>
<goal>add-source</goal>
</goals>
<configuration>
<sources>
<source>${project.build.directory}/generated-sources/entitygenerator</source>
<source>${basedir}/src/main/groovy</source>
</sources>
</configuration>
</execution>
</executions>
</plugin>
The error is on the <execution> tag.
Now, I'm struggling to find the need Eclipse plugin, but somehow, I'm not able to find it. Can you help?
I'm using Eclipse Indigo and Maven 3.0.3, with a JDK 1.6_22, on a Windows XP SP3.
Select the message in the problem view and press Ctrl+1 (or select "Quick fix" from the context menu).
That will give you the option to ignore this plugin. Select this and m2e will add some XML to your POM and the error will be gone.
The plugin will still work if you call it explicitly!
See M2E plugin execution not covered for details.
It seems like build-helper m2e connector fixes the issue: build-helper-maven-plugin

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