Develop Reference

maven site plugin is not working well behind a proxy

I'm using maven (apache-maven-3.2.1) and maven-site-plugin into my project.
while doing mvn site behind a proxy I got the following warnings / slowness :
[INFO] Rendering site with org.apache.maven.skins:maven-default-skin:jar:1.0 skin.
[INFO] Generating "Dependencies" report --- maven-project-info-reports-plugin:2.8:dependencies
[WARNING] The repository url 'http://download.oracle.com/maven' is invalid - Repository 'oracle.releases' will be blacklisted.
[WARNING] The repository url 'http://snapshots.repository.codehaus.org' is invalid - Repository 'codehaus-snapshots' will be black
listed.
[WARNING] The repository url 'http://repository.codehaus.org' is invalid - Repository 'codehaus' will be blacklisted.
[WARNING] The repository url 'http://download.java.net/maven/glassfish' is invalid - Repository 'glassfish-repository' will be bla
cklisted.
[WARNING] The repository url 'http://download.java.net/maven/2/' is invalid - Repository 'maven2-repository.dev.java.net' will be
blacklisted.
I got a build success but I think that blacklisting a valid repository is an issue...
I'm behind a proxy so I defined a proxy into my maven global settings ($M2_HOME/conf/settings.xml).
For some plugins like release-plugin (cf example under) or surefire-plugin I had to override arguments with proxy settings to get a success build, but I din't find an arguments (equivalent configuration) for maven-site-plugin.
maven-release example behind a proxy
<plugin>
<artifactId>maven-release-plugin</artifactId>
<version>2.5.2</version>
<configuration>
<arguments>${proxyString}</arguments>
</configuration>
</plugin>
(...)
<profile>
<id>proxy</id>
<activation>
<activeByDefault>false</activeByDefault>
</activation>
<properties>
<proxyString>-Djava.net.useSystemProxies=true
-Dhttp.proxyHost=myProxy -Dhttp.proxyPort=3128
-Dhttps.proxyHost=myProxy -Dhttps.proxyPort=3128</proxyString>
</properties>
</profile>
I think that maven site use maven-project-info-reports-plugin but I don't know how to pass proxy arguments to this plugin (which is -according to the doc- configured internally by maven-site) ?
I saw an old discussion on apache maven mailing list but that doesn't help me.
How to set a proxy for mvn site ?

Logs are listing deprecated, moved or inexisting repositories, so this warning are expected.
As this step could be really really slow, ( via this src ) there is a way to avoid generating dependencies locations:
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-project-info-reports-plugin</artifactId>
<configuration>
<dependencyLocationsEnabled>false</dependencyLocationsEnabled>
</configuration>
</plugin>
</plugins>
</pluginManagement>

calling Sonar analysis of Java and Javascript from Jenkins using Maven not SonarRunner

I have a maven project(POM.xml) having java and Js files.I want to call sonar analysis from Jenkins.Please let me know how can I do to analyse both Java and Javascript files.I have done it for Java using sonar runner but the problem is Javascripts files are in different locations in Project directory.Hence,
sonar.src=src/main/java will not work here.I think I need to go with Maven POM.xml to do the analysis as using POM.xml the project is getting build so analysis may be possible also?
1)I know using mvn sonar:sonar is possible but what I need to add in POM.xml for Sonar?
2)What I need to change in MAVEN settings.xml?
3)Please let me know the exact step by step if possible.
Thanks in advance!

You can try this here
<project>
...
<build>
<!-- To define the plugin version in your parent POM -->
<pluginManagement>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>sonar-maven-plugin</artifactId>
<version>2.5</version>
</plugin>
...
</plugins>
</pluginManagement>
<!-- To use the plugin goals in your POM or parent POM -->
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>sonar-maven-plugin</artifactId>
<version>2.5</version>
</plugin>
...
</plugins>
</build>
...
</project>
the website that has information to help you is this one here.

POM for Maven Compiler Plugin Jar is missing

EDIT: I've just updated my Eclipse installation from Kepler to Luna - all of my Maven projects were running fine before the update
I am receiving the error which is preventing my Maven project from installing:
The POM for org.apache.maven.plugins:maven-compiler-plugin:jar:2.5.1 is missing, no dependency information available
And when I navigate to Maven's Lifecycle Mapping in Eclipse I see
compiler:compile | error
compiler:text Compile | error
I have maven-compiler-plugin:jar:3.1 (including the POM file) in my .m2 repository and would like to use that instead.
How could this be configured in Eclipse? Alternatively, if this is not the solution to the problem, how could this be resolved?

You need to edit your pom.xml to set the version of the compiler plugin to be used. As described on the plugin's homepage, you configure the maven-compiler-plugin in the build-section of your project's pom.xml like so:
<project>
...
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<!-- put your configurations here -->
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>
...
</project>
If you want to use the local repository of your Maven installation (instead of Eclipse's embedded version), go to Preferences -> Maven -> Installations and add your Maven installation there.

Error when deploying site of a maven multi module project with FTP

I have a multi module project. When I launch mvn site:deploy, the deployment of the base module works fine, but it fails to create the directory of the module sites on the FTP server:
[INFO] Error uploading site
Embedded error: Required directory: '/myremoteftprepository/myproject-mymodule' is missing
When I create the missing directory by hand, it works fine, but I would like to avoid that. It is surprising that the deploy command do not create it. Do you how to force this directory creation? Is it a bug in the wagon-ftp plugin?
FYI, here is my POM:
<build>
<extensions>
<!-- Enabling the use of FTP -->
<extension>
<groupId>org.apache.maven.wagon</groupId>
<artifactId>wagon-ftp</artifactId>
<version>1.0</version>
</extension>
</extensions>
</build>
I have chosen to include the javadoc with:
<reporting>
<plugins>
<!-- include javadoc in the site -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-javadoc-plugin</artifactId>
<version>2.8</version>
<configuration>
<show>public</show>
</configuration>
</plugin>
</plugins>
</reporting>
and
<distributionManagement>
<site>
<id>site</id>
<name>maven site</name>
<url>ftp://ftp.blabla.org/myremoteftprepository</url>
</site>
</distributionManagement>
and my settings.xml is good.

You should not launch the site:deploy goal, but rather the site-deploy Maven lifecycle phase e.g. like that
mvn clean install site-deploy
and also make sure that the latest version of your wagon transport is used (2.2).
Also for javadoc plugin you should configure it as reporting plugin under the configuration of the maven site plugin.

With the most recent version of wagon-ftp (2.2), it works.

Maven FindBugs plugin

You have usage: findbugs-maven-plugin
<project>
[...]
<reporting>
[...]
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>findbugs-maven-plugin</artifactId>
<version>1.2.1</version>
<configuration>
<xmlOutput>true|false</xmlOutput>
<xmlOutputDirectory>directory location of findbugs xdoc xml report</xmlOutputDirectory>
<threshold>High|Normal|Low|Exp|Ignore</threshold>
<effort>Min|Default|Max</effort>
<excludeFilterFile>findbugs-exclude.xml</excludeFilterFile>
<includeFilterFile>findbugs-include.xml</includeFilterFile>
<visitors>FindDeadLocalStores,UnreadFields</visitors>
<omitVisitors>FindDeadLocalStores,UnreadFields</omitVisitors>
<onlyAnalyze>org.codehaus.mojo.findbugs.*</onlyAnalyze>
<pluginList>/libs/fb-contrib/fb-contrib-2.8.0.jar</pluginList>
<debug>true|false</debug>
<relaxed>true|false</relaxed>
<findbugsXmlOutput>true|false</findbugsXmlOutput>
<findbugsXmlOutputDirectory>directory location of findbugs legact xml format report</findbugsXmlOutputDirectory>
</configuration>
</plugin>
[...]
</reporting>
[...]
</project>
But once:
mvn site
I get:
[INFO] ------------------------------------------------------------------------
[ERROR] BUILD ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Failed to resolve artifact.
GroupId: org.codehaus.mojo
ArtifactId: findbugs-maven-plugin
Version: 1.2.1
Reason: Unable to download the artifact from any repository
org.codehaus.mojo:findbugs-maven-plugin:pom:1.2.1
from the specified remote repositories:
central (http://repo1.maven.org/maven2)
Do you know why? What should I do?

Looking at the repository, your version should be 1.2, not 1.2.1
Also, your configuration is wrong, you need to choose some of the options. So it should look like:
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>findbugs-maven-plugin</artifactId>
<version>1.2</version>
<configuration>
<threshold>High</threshold>
<effort>Default</effort>
</configuration>
</plugin>

try that:
<version>1.2</version>
http://repo2.maven.org/maven2/org/codehaus/mojo/findbugs-maven-plugin/
Seems like they did a simple copy/paste error.

The report will be in target/site. Look at the file index.html in a browser, than look for project reports, then findbugs report.

As part of your parent project structure place site.xml into parent-project/src/site:
|--- src
|---site
|---site.xml
An example site.xml from "Better Builds with Maven" (a free book available online) should get you started.
Once site.xml is created, execute mvn site from the parent project directory. It will pick up your reporting settings including the firebug report. Once the site is built, each child project will have directory /target/site, which contains index.html with a link to project reports. The project reports should contain firebug reports.