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Maven property substitution for repository url not happening if parent pom is defined

I'm having an issue where maven is not properly substituting properties into my repository URLs if and only if there is a parent pom defined. This is particularly a problem because the parent pom is IN the remote repository, so I need to have the parent pom defined.
minimum reproducible example:
<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.group</groupId>
<artifactId>parent-artifact</artifactId>
<version>1.0.0</version>
<relativePath/>
</parent>
<groupId>com.group</groupId>
<artifactId>project-artifact</artifactId>
<version>1.0.0-SNAPSHOT</version>
<name>project</name>
<description>test project</description>
<properties>
<nexus.url>https://nexus.myorganization.net</nexus.url>
</properties>
<repositories>
<repository>
<id>nexus-server</id>
<url>${nexus.url}/repository/maven-releases/</url>
</repository>
</repositories>
</project>
Using this pom, I get the error message Cannot access ${nexus.url}/repository/maven-snapshots/... so clearly it is not replacing the property with the actual value.
If I remove the <parent> section of the POM, then suddenly property substitution begins working just fine:
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.group</groupId>
<artifactId>project-artifact</artifactId>
<version>1.0.0-SNAPSHOT</version>
<name>project</name>
<description>test project</description>
<properties>
<nexus.url>https://nexus.myorganization.net</nexus.url>
</properties>
<repositories>
<repository>
<id>nexus-server</id>
<url>${nexus.url}/repository/maven-releases/</url>
</repository>
</repositories>
<!-- adding this dependency so that Maven is forced to download from the repository -->
<dependencies>
<!-- some dependency here -->
</dependencies>
</project>
I know its working properly because I can see in maven's output the line Downloading from nexus-server: https://nexus.myorganization.net/repository/maven-releases/...
Any ideas?

Thanks to the commenters, the reason is because the property resolution does not occur until after the parent pom has been resolved, so that there are no property conflicts between current pom and parent pom.
More details provided at tickets MNG-2569 and MNG-624 (source).

I think you have a wrong tag in the definition of the parent.
Why is there a relativePath tag?
just remove the tag:
and try it again

How to inherit dependencies from other libraries in maven?

I created a custom my-commons library with maven. The commons pom contains eg the following dependency:
<?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">
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.4.RELEASE</version>
<relativePath/>
</parent>
<groupId>de.mydomain</groupId>
<artifactId>my-commons</artifactId>
<version>1.0.0</version>
<packaging>jar</packaging>
<properties>
<!-- workaround for http://jira.codehaus.org/browse/MASSEMBLY-603-->
<maven.build.timestamp>${maven.build.timestamp}</maven.build.timestamp>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
</project>
I installed the custom library into my local repository.
In a different project, I reuse the library. It resolves correctly, so it exists in the repo:
<project ...>
<groupId>de.mydomain</groupId>
<artifactId>my-core</artifactId>
<version>1.0.0</version>
<dependencies>
<dependency>
<groupId>my.domain</groupId>
<artifactId>my-commons</artifactId>
<version>1.0.0</version>
</dependency>
</dependencies>
</project>
Now in this project I'd like to use a class org.springframework.web.bind.annotation.ResponseBody.
Problem: the class is not in classpath. So maven complains [ERROR] cannot find symbol.
But why?? I'd expect the dependency being inherited!
Sidenote: I'm using Intellij IDEA if that matters. The same problem applies to all "inherited" libraries. The spring-web lib is just an example.

Please check if .m2 folder contains the jar you want to use or not. You can use mvn install command in commons project to generate the jar. Also you need to add commons project in your project pom that you are running.

You need to create the artifact for your commons project, through its pom.xml.
Like in my below example i created a separate project where i am using the AWS and some other dependency and then final jar, which i am using in other project :-
My AWS-client pom.xml looks like below :-
<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>
<groupId>com.kaamkaj</groupId>
<artifactId>aws-clients</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<name>aws-clients</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<aws.sdk.version>1.11.104</aws.sdk.version>
</properties>
<dependencies>
<!--AWS dependency-->
<!-- https://mvnrepository.com/artifact/com.amazonaws/aws-java-sdk-dynamodb -->
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk-dynamodb</artifactId>
<version>${aws.sdk.version}</version>
</dependency>
<dependency>
<groupId>com.mercadopago</groupId>
<artifactId>sdk</artifactId>
<version>0.3.4</version>
</dependency>
</dependencies>
<repositories>
<repository>
<id>mercadopago</id>
<url>https://github.com/mercadopago/sdk-java/raw/master/releases</url>
</repository>
</repositories>
</project>
Also, run mvn clean install on the commons pom, in your case.
And then in all other project where i need to include the aws-client , i use the artifact-id of above project, like below :-
<dependency>
<groupId>com.kaamkaj</groupId>
<artifactId>aws-clients</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
Let me know if you have any questions:

Found it: removing the <maven.build.timestamp>... <property> solved the problem. I don't know why it prevented the inheritance to work properly, especially as I didn't get any errors.

List maven external dependencies - excluding submodules in current project

I have a maven project that contains two submodules, one depends on there other.
The project has no code but maven is ok with that. If I perform mvn package it passes ok and generates (empty) jar files.
However if I do mvn dependency:list I get the following error:
Failed to execute goal on project foob-two: Could not resolve dependencies for project com.example.foob:foob-two:jar:1.0.0-SNAPSHOT: Failure to find com.example.foob:foob-one:jar:1.0.0-SNAPSHOT in [Repo]
It seems like the maven dependency plugin only works after the modules have been uploaded to the local repo.
Strangely if I do the dependency list at the same time as package, ie mvn package dependency:list, it works. So it seems that maven has a different dependency resolution mechanism in some contexts.
Can anyone explain the behaviour? Can I run mvn dependency:list as a standalone command?
Here's the root pom:
<?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>
<groupId>com.example.foob</groupId>
<artifactId>foob</artifactId>
<packaging>pom</packaging>
<version>1.0.0-SNAPSHOT</version>
<modules>
<module>foob-one</module>
<module>foob-two</module>
</modules>
</project>
Here's the first subproject:
<?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">
<parent>
<groupId>com.example.foob</groupId>
<artifactId>foob</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<artifactId>foob-one</artifactId>
<packaging>jar</packaging>
<modelVersion>4.0.0</modelVersion>
<dependencies>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.0</version>
</dependency>
</dependencies>
</project>
Here's the second project:
<?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">
<parent>
<groupId>com.example.foob</groupId>
<artifactId>foob</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<artifactId>foob-two</artifactId>
<packaging>jar</packaging>
<modelVersion>4.0.0</modelVersion>
<dependencies>
<dependency>
<groupId>com.example.foob</groupId>
<artifactId>foob-one</artifactId>
<version>1.0.0-SNAPSHOT</version>
</dependency>
</dependencies>
</project>

mvn dependency:list can be run on its own. It appears as if your project is failing because of missing dependencies. Try mvn install first.
how to make one module depends on another module artifact in maven multi-modules

Trouble Importing Neo4j in Java

I am doing a Maven project with Intellj Idea in which I am trying to use neo4j.
I have an error of "unable resolve symbol neo4j" on (import org.neo4j.driver.v1.*;).
I have brought in the neo4j jar files to the project and believe I have a correctly set up pom file. I will post both though with this question below.
POM:
<?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>
<groupId>com.example</groupId>
<artifactId>NeoImport</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>NeoImport</name>
<description>Import</description>
<dependencies>
<dependency>
<groupId>org.neo4j.driver</groupId>
<artifactId>neo4j-java-driver</artifactId>
<version>1.0.3</version>
</dependency>
</dependencies>
<build>
<defaultGoal>install</defaultGoal>
</build>
</project>
Project Setup:
Thanks!

Spring Boot maven spring-could-starter-parent Brixton.RELEASE changes hibernate-core dependency

I have a project that depends on hibernate-core 3.6.4.Final, lets call it "MyDatabaseProject".
I have a second project which is a spring-cloud project, it depends on MyDatabaseProject.
The spring cloud project uses spring-cloud-starter-parent Brixton.RELEASE as it's parent pom.
When I check the dependencies (using "mvn dependency:list") I see that I now have a dependency on hibernate-core:4.3.11.Final, not 3.6.4.Final.
If I switch the spring-cloud-starter-parent version back to Angel.SR6, and I check the dependencies (using "mvn dependency:list") I see that I have a dependency on hibernate-core:3.6.4.Final, as I would expect.
It appears to me that something changed in the Brixton.RELEASE that overrides the hibernate-core version.
My question is, is this a bug, or unintentional change in the Brixton.RELEASE?
If it is intentional, what it the correct way to deal with this?
I have tried adding a dependencyManagement section to the spring cloud project pom with the hibernate-core:3.6.4.Final, and that did work, but I don't know if that is the correct way to deal with the problem. It doesn't seem right for the top level project to care about what hibernate version the lower level project uses.
Here are the minimal maven poms for the spring cloud project and the database project:
<?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>
<groupId>example</groupId>
<artifactId>MySpringCloudProject</artifactId>
<version>1.0.0</version>
<parent>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-parent</artifactId>
<version>Brixton.RELEASE</version>
<!-- <version>Angel.SR6</version> -->
</parent>
<dependencies>
<dependency>
<groupId>example</groupId>
<artifactId>MyDatabaseProject</artifactId>
<version>1.0.0</version>
</dependency>
</dependencies>
</project>
And the database project:
<?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>
<groupId>example</groupId>
<artifactId>MyDatabaseProject</artifactId>
<version>1.0.0</version>
<dependencies>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>3.6.4.Final</version>
</dependency>
</dependencies>
</project>