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How to fix the 'Add JDK' warning
When working with Maven4MyEclipse for the first time, you might
execute a Maven operation that requires a full JDK (as opposed to
just a JRE) to run. When that happens you may get a JDK Warning
like below:
If you see this dialog, you can click the "Maven JDK"
link to jump directly to the configuration screen where you can
set a JDK for Maven to use:
If you already have some JDKs configured (under
Window > Preferences > Java > Installed JREs)
you can select them using the dropdown, or click the
Add... button to popup the
Add JVM dialog to add a new one:
If you choose to add a new JDK, it's as easy as selecting the
JDK's home/install directly and Eclipse will fill out the
remaining information for you automatically. After you are done
hit
OK, then the Maven JDK will be updated for you:
You shouldn't have to set this property again, and if Maven
should need to use a JDK, it will use the one you have now set.
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How to interpret the 'No JAR' or 'Missing
artifact' errors
In some cases, it is possible to add an unresolved dependency to
your project using Maven4MyEclipse that doesn't exist in the
remote Maven repository or your local Maven repository:
If those dependencies cannot be resolved from the local or remote
repositories you will get a validation error on your
pom.xml file as well as a build failure on your project
for the missing artifact required to build the project
successfully:
When this happens you have two choices:
-
Import the resource into your local repository so it can be
resolved (for instructions on how to do this, please see
the next section).
-
Remove the broken dependency and add a valid dependency in it's
place.
In the case of #2, we added the following
broken dependency:
The fix is to manually edit the
pom.xml file and remove the
<dependency> tag that contains the broken
reference, then re-add the working dependency. In this case, we
want to re-add
springframework (the 6th item listed in the
screenshot above) instead, and it will resolve.
There may be times where trial-and-error are required to
determine which references are resolving and which aren't if you
run into this problem. Over time we will continually refine the
catalog index to make it more accurate and remove unresolving
dependencies for you. We just wanted to provide a tip on how to
get out of this situation incase you ever find yourself there.
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How to install your own JARs into
a Maven repository
One of the most powerful and unique features in Maven4MyEclipse
is the abillity to import JARs directly into the remote
repository by way of a wizard.
You can access the Import JAR wizard by going to
File > Import:
or by going to the
MyEclipse > Utilities > Maven4MyEclipse menu:
You then select the JAR you want to import into your repository
and enter in the appropriate
Group Id (approximately a
parent package if you want to think of it that way) and
an
Artifact Id (approximately a specific
project package) then provide a
Version and hit
Finish to import that JAR into your repository:
Once a JAR has been imported into the repository, you are free to
add it as a
Dependency to any other projects that want to make use
of it, and Maven4MyEclipse will resolve it correctly for you.
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How to run 'Site' for generating project
status report resources
Maven provides the ability to generate a large number of
"reports" for your projects; including but not limited
to: CheckStyle reports, Code Coverage reports, Code Dependency
reports, PMD/Code Violation reports and more. In order to get
reports generated for your project this is typcially done by
adding the appropriate set of plugins and parameters for those
plugins to the
reporting portion of your
pom.xml file.
Below is an example (please adjust/change to fit your needs) of a
reporting portion that you can copy-paste into your
pom.xml right after the
dependencies closing tag to have Maven generate site
reporting for you (when running the
site goal):
<reporting>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>cobertura-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-report-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-javadoc-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>
maven-project-info-reports-plugin
</artifactId>
<reportSets>
<reportSet>
<reports>
<report>summary</report>
<report>dependencies</report>
<report>project-team</report>
</reports>
</reportSet>
</reportSets>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>jxr-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-report-plugin</artifactId>
<version>2.4.2</version>
</plugin>
<plugin>
<artifactId>maven-clover-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-pmd-plugin</artifactId>
<configuration>
<targetjdk>1.5</targetjdk>
<rulesets>
<ruleset>/rulesets/basic.xml</ruleset>
<ruleset>/rulesets/controversial.xml</ruleset>
</rulesets>
<format>xml</format>
<linkXref>true</linkXref>
<sourceEncoding>utf-8</sourceEncoding>
<minimumTokens>100</minimumTokens>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-checkstyle-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>jdepend-maven-plugin</artifactId>
</plugin>
</plugins>
</reporting>
<developers>
<developer>
<id>sally</id>
<name>Sally Serena</name>
<email>sally.serena@mycompany.com</email>
<roles>
<role>Developer</role>
</roles>
<organization>My Great Company</organization>
</developer>
<developer>
<id>micky</id>
<name>Micky Mango</name>
<email>micky.mango@mycompany.com</email>
<roles>
<role>Developer</role>
</roles>
<organization>My Great Company</organization>
</developer>
</developers>
<contributors>
<contributor>
<name>Jerry Jacobson</name>
<email>Jerry.Jacobsen@mycompany.com.com</email>
<roles>
<role>Management Represented</role>
</roles>
</contributor>
</contributors>
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