AEM 6.1 Maven Dependency Resolution - maven

I'm using AEM6.1 with Maven as build manager.
I want to extend the com.day.cq.dam.core.process.ThumbnailProcess class.
Using the AEM buit-in dependency resolver
system/console/depfinder
it seems that the class should be contained in
<dependency>
<groupId>com.day.cq.dam</groupId>
<artifactId>cq-dam-core</artifactId>
<version>5.8.172</version>
<scope>provided</scope>
</dependency>
Anyway the Adobe nexus repo does not contain this version and all the older do not provide the above class.
I wish to know how to manage this problem.
Thanks for any advice.

In the latest version Adobe pushed everything into a giant dependencies jar.
Put this at the end of your POM:
<depen­dency>
<groupId>com.adobe.aem</groupId>
<arti­fac­tId>uber-jar</arti­fac­tId>
<ver­sion>6.1.0</ver­sion>
<scope>pro­vided</scope>
<clas­si­fier>obfuscated-apis</clas­si­fier>
</depen­dency>

Related

How to incorporate BIRT 4.9.0 into POM?

Scenario:
I am refactoring my application to work under java 17. Birt runtime 3.7.x is embedded in my application.
In updating to point to birt 4.9.0, I have updated my pom as follows:
<dependency>
<groupId>org.eclipse.birt</groupId>
<artifactId>birt-runtime</artifactId>
<version>4.9.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.eclipse.birt/birt-runtime-osgi -->
<dependency>
<groupId>org.eclipse.birt</groupId>
<artifactId>birt-runtime-osgi</artifactId>
<version>4.9.0</version>
</dependency>
When I build, I get the exception
org.eclipse.birt:birt-runtime:jar:4.9.0 was not found in https://repo1.maven.org/maven2 during a previous attempt
I have deleted and rebuilt my local .m2 directory.
When I dig around the maven repository I find the file at https://repo1.maven.org/maven2/org/eclipse/birt/birt-runtime/4.9.0/
This link (BiRT latest Runtime as one Maven Dependency for Eclipse) was resolved by manually downloading the file and pointing to a local copy. I'd prefer to avoid that, since Maven is all about avoiding that kind of scenario.
I suspect there's something in the maven path I am missing.
Thank you in advance.

IntelliJ How to force downgrade dependency version?

I have a persistent problem with maven dependencies version changes in IntelliJ. Whenever I try to use a previous version of a library and change the dependency version in my pom.xml nothing happens. Maven continues to use the newer version of the library.
For example I want to use:
<dependency>
<groupId>org.springframework.security.oauth.boot</groupId>
<artifactId>spring-security-oauth2-autoconfigure</artifactId>
<version>2.0.1.RELEASE</version>
</dependency>
But Maven repo has version 2.0.2 saved :
<dependency>
<groupId>org.springframework.security.oauth.boot</groupId>
<artifactId>spring-security-oauth2-autoconfigure</artifactId>
<version>2.0.2.RELEASE</version>
</dependency>
So for my projects version 2.0.2.RELEASE is used.
I tried reimporting the project first. Then I tried "reimpor all maven projects". Then I checked Settings > Maven > Always update snapshots. I also tried opening the project settings and deleting the dependency from there, but on reimport the 2.0.2 version will be imported in the project. For now the only thing that works is deleting manually the folder from the ".m2" folder.
Shouldn't library versions be strictly followed and shouldn't version 2.0.1 v be used for my project?
The moment you change the version of the artifacts, maven will use the same version. It will never use neither new version nor the older version. Since you are using intellij, you can check which are the jar files along with their version used. See below the screenshot.
You can expand the External libraries as shown below and you can check the dependencies used in pom.xml.
Besides, you can also check in command prompt. Go to command prompt and point to the project directory and type the following command.
mvn install dependency:copy-dependencies
You can see all the required dependencies along with version information in target folder.
I suggest you not to delete the .m2 directory as you may have to download all the dependencies once again.
If you want to enforce the use of a particular dependency version you can use:
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.security.oauth.boot</groupId>
<artifactId>spring-security-oauth2-autoconfigure</artifactId>
<version>2.0.1.RELEASE</version>
</dependency>
</dependencies>
</dependencyManagement>
What this will do is exclude the dependency unless it actually gets used, and then if it does gets used it only uses the version you have specified.
Not clear what is the issue.
Repo can contain everything, no matter if dependency is present locally.
Also, Idea does not resolve dependency itself, we use maven api to resolve them.
By default, maven takes dependency which is nearest to root (see https://maven.apache.org/guides/introduction/introduction-to-dependency-mechanism.html)
Specifiying explicit dependency in root pom should force using this version.
Could you please provide mvn dependency:tree output and corresponding IDEA maven dependency diagram (if you have IU)?
If Idea resolve another dependency version than maven, please fill an issue at https://youtrack.jetbrains.com/issues

How to include jar in Maven Netbeans proj that doesnt exist in maven repo

I am using Netbeans to build a Maven project, and have the JTidy java library as a dependency. It turns out JTidy doesnt exist in any maven repos, so I can't just add a "normal" depedency entry for it.
What is the best way of handling dependencies to libraries in Maven projects that arent available on repos?
I've currently tried adding it to my maven pom as such (after copying the jar to my projects /libs folder)
<dependency>
<groupId>org.w3c</groupId>
<artifactId>org.w3c.tidy</artifactId>
<version>9.3.8</version>
<scope>system</scope>
<systemPath>${basedir}/libs/jtidy-r938.jar</systemPath>
</dependency>
However it complains that it will be unresolvable by dependent projects.
First of all, it's under another groupId, that's why you didn't find it.
<dependency>
<groupId>net.sf.jtidy</groupId>
<artifactId>jtidy</artifactId>
<version>r938</version>
</dependency>
Jtidy
But to answer your question, one way of doing this is to manually install it in your local repo as described here.
The best way IMHO is to add it to a proxy like Nexus. That way other people can access it from there without having to install it locally. However, this means you have to set up a repository manager, which doesn't make much sense if you are the only developer on the project.

Where to find Maven CXF 2.2.6 jar?

I'm converting an ANT project that uses CXF into a Maven one. The problem is that this projects depends on CXF v2.2.6 and when I go to here or even here, there is no jar to download. I don't know what to do. I have the JAR but I want to use the Maven features like dependency management.
Thanks for your help
If using Ant, it likely used the cxf-bundle jar that pretty much contains all of CXF. You can just add:
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-bundle</artifactId>
<version>2.2.6</version>
</dependency>
to your new pom and it would get that jar along with all the dependencies that it would require.
It is available at Maven central. Use repo1.maven.org as your repository.
Either install it manually to your local repository or use a repository manager like Nexus.

Choosing dependency version in maven and maven plugin

I have a maven plugin which is using hsqldb 1.8.0.10. In my pom.xml from the plugin, it is declared like this:
<dependency>
<groupId>hsqldb</groupId>
<artifactId>hsqldb</artifactId>
<version>1.8.0.10</version>
</dependency>
But if I run that plugin from another maven project, and that project has a newer version of hsqldb (for instance 1.9.0), how can I configure my plugin that he will use the newest version of hsqldb, without changing it's pom.xml?
And is it possible to do this the other way around as well? If my other maven project uses hsqldb 1.7.0 (for instance), that he will use the 1.8.0.10 version which is specified in the maven plugin itself?
I hope someone can answer my question.
Kind regards,
Walle
Your main question is possible, but it might not work properly if the plugin doesn't work with the newer code for any reason.
A plugin can have it's own personal dependencies section, and will use standard Maven dependency resolution, choosing the highest version requested. So, you can do
<plugin>
<groupId>some.group.id</groupId>
<artifactId>some.artifact.id</artifactId>
<version>someversion</version>
<dependencies>
<dependency>
<groupId>hsqldb</groupId>
<artifactId>hsqldb</artifactId>
<version>1.9.0</version>
</dependency>
</dependencies>
</plugin>
I don't think going the other way around is possible, though.
use properties place holder for the version, say ${hsqldb.version} then declare in different project pom the version you want to put in it

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