Maven must be losing its mind.
I added a dependency using Netbeans Add Dependency dialog. I searched for jax-rs-ri. It updated the index from central and showed several versions of jax-rs-ri. I selected 1.9.1 and it added this to the pom.xml:
<dependency>
<groupId>com.sun.jersey.ri</groupId>
<artifactId>jax-rs-ri</artifactId>
<version>1.9.1</version>
</dependency>
Looks right, but when I build I get the following error:
Failed to execute goal on project reply-to.test-web:
Could not resolve dependencies for project jms:reply-to.test-web:war:1.0-SNAPSHOT:
Could not find artifact com.sun.jersey.ri:jax-rs-ri:jar:1.10-b03 in
central (http://repo1.maven.org/maven2) -> [Help 1]
I've also tried changing the repository the following with the same results:
<repositories>
<repository>
<id>maven2-repository.java.net</id>
<name>Java.net Repository for Maven</name>
<url>http://download.java.net/maven/2</url>
<layout>default</layout>
</repository>
</repositories>
This was working earlier today. Did something just get broken with Maven?
In these cases it's worth to check the local repository (usually c:\Users\<username>\.m2\repository\com\sun\jersey\ri\jax-rs-ri or /home/<username>/.m2/repository/com/sun/jersey/jax-rs-ri) and Central:
http://search.maven.org/#artifactdetails|com.sun.jersey.ri|jax-rs-ri|1.9.1|pom
(The important part now is the "Available Downloads" table.)
So, there isn't any jar file just a zip (and the POM). You should use <type>zip</type> in your dependency like this:
<dependency>
<groupId>com.sun.jersey.ri</groupId>
<artifactId>jax-rs-ri</artifactId>
<version>1.9.1</version>
<type>zip</type>
</dependency>
Since it's a zip maybe you want to unpack it. This answer could help: Unzip dependency in maven
Please note that 1.9.1 is not the latest jax-rs-ri version and your Maven uses 1.10-b03. If you want to force it to use 1.9.1 you have to use <version>[1.9.1]</version> inside the dependency tag.
Related
I would like to create a plugin for Gephi but I got an error when running Maven and the project is not supported since 4 years... I already posted my question as an issue but I think no one will answer me now.
I forked the git and tried to follow instructions in the README to create my own plugin, but when I run this command :
mvn clean package
I constantly get this error :
[ERROR] Failed to execute goal on project gephi-plugins: Could not resolve dependencies for project org.gephi:gephi-plugins:pom:0.9.2: Failed to collect dependencies at org.gephi:gephi:tar.gz:linux:0.9.2 -> org.netbeans.cluster:platform:pom:RELEASE82: Failed to read artifact descriptor for org.netbeans.cluster:platform:pom:RELEASE82: Could not transfer artifact org.netbeans.cluster:platform:pom:RELEASE82 from/to maven-default-http-blocker (http://0.0.0.0/): Blocked mirror for repositories: [netbeans (http://bits.netbeans.org/nexus/content/groups/netbeans/, default, releases)] -> [Help 1]
I'm new with Maven and issues #77 and #214 didn't help me, I just followed instructions in the README file.
I followed the link given by the error and a blank page with this text appeared :
Repository decommissioned. Please refer to https://netbeans.apache.org/about/oracle-transition.html for more information.
And after clicking the link above, I thought this part was interesting :
As of March the 6th, 2021, we’ll be standing on our own feet, and all the Apache NetBeans Project source and convenience binaries will be hosted by the Apache Infra Team.
And then, a "new" code for handling netbeans repository
<build>
<repositories>
<repository>
<id>netbeans</id>
<name>NetBeans</name>
<url>http://netbeans.apidesign.org/maven2/</url>
</repository>
</repositories>
<build>
Is that possible that the pom.xml file is not up to date ? Or am I missing something ?
I spoke with someone who already used Maven at the office and he said that none of gephi repositories are working with Maven, all of them display the error.
Thanks for the help !
Finally the solution was quite simple :
The NetBeans repositories have indeed changed, so, in modules/pom.xml :
<repository>
<id>netbeans</id>
<name>NetBeans</name>
<url>http://bits.netbeans.org/nexus/content/groups/netbeans/</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
We have to change the <url> tag to :
<url>http://netbeans.apidesign.org/maven2/</url>
I did that and it didn't work because my Maven version didn't support non secure url repositories (http) and I need to add a "s" in order to make it works.
<url>https://netbeans.apidesign.org/maven2/</url>
For a reason that I don't know, the project still not compile and we have to go to the parent pom.xml on the root folder and add the same NetBeans repository than above.
After doing that it compile.
I don't know if this is normal, but I'm new to Maven and I didn't know : if you want to use some gephi packages in your module (and wou want) you have to add them into module/YourModule/pom.xml in the <dependencies> tag ! Like that :
<dependencies>
<dependency>
<groupId>org.gephi</groupId>
<artifactId>layout-api</artifactId>
<version>0.9.2</version>
</dependency>
<dependency>
<groupId>org.gephi</groupId>
<artifactId>graph-api</artifactId>
<version>0.9.2</version>
</dependency>
<!-- ... -->
</dependencies>
I tested it with the GridLayout plugin from the Gephi Plugins Bootcamp and it worked.
I'm trying to use docker-compose-rule to run docker-compose files in junit integration tests.
I use the following dependency in my pom.xml file:
<dependency>
<groupId>com.palantir.docker.compose</groupId>
<artifactId>docker-compose-rule-core</artifactId>
<version>0.32.0</version>
<type>pom</type>
</dependency>
<!-- https://mvnrepository.com/artifact/com.palantir.docker.compose/docker-compose-rule-junit4 -->
<dependency>
<groupId>com.palantir.docker.compose</groupId>
<artifactId>docker-compose-rule-junit4</artifactId>
<version>0.32.0</version>
</dependency>
but for some reason the artifact is not found by maven (for none of the available versions).
As far as I can say, the artifact is found in the jcenter as shows in bintray.
It also exists on maven repository.
Can someone please tell why can't I use these libraries?
Alternatively, can I reference maven to take the library from a specific url with a specific jar file, for example from github, or from here?
According to mvnrepository, the jar you are looking for is not in the maven default Central repository, but is in the Palantir repository. You can add
<repositories>
<repository>
<id>Palantir</id>
<url>https://dl.bintray.com/palantir/releases/</url>
</repository>
</repositories>
into your pom.xml, and try again.
I'm trying to add the following db2 jars to my Java web application using Maven...
db2jcc_license_cu.jar
db2jcc_javax.jar
db2jcc.jar
I'm following the instructions posted in this post...
Can I add jars to maven 2 build classpath without installing them?
I want to use the static in-project repository solution. So far I have...
Created a folder in my root directory named lib. Inside this
directory lives the three db2 jars.
Added the following to my pom file...
<repository>
<id>lib</id>
<releases>
<enabled>true</enabled>
<checksumPolicy>ignore</checksumPolicy>
</releases>
<snapshots>
<enabled>false</enabled>
</snapshots>
<url>file://${project.basedir}/lib</url>
</repository>
</repositories>
<dependency>
<groupId>com.ibm.db2.jcc</groupId>
<artifactId>db2jcc</artifactId>
<version>3.8.47</version>
</dependency>
<dependency>
<groupId>com.ibm.db2.jcc</groupId>
<artifactId>db2jcc_license_cu</artifactId>
<version>3.8.47</version>
</dependency>
But when I run a maven install I get ...
[WARNING] The POM for com.ibm.db2.jcc:db2jcc:jar:3.8.47 is missing, no dependency information available
[WARNING] The POM for com.ibm.db2.jcc:db2jcc_license_cu:jar:3.8.47 is missing, no dependency information available
I got the version of the Jars by running a...
java com.ibm.db2.jcc.DB2Jcc -version
Have I specified this version info corretly? Can anyone suggest what I am doing wrong?
The problem is that you didn't install the jars properly in your "project-maven-repository" (i.e. in the folder ${project.basedir}/lib)
Maven stores (when you do mvn install) the jar files in a maven repository. A maven repository have precise hierarchical structure. Here is a simplified vision of this structure:
the artifact groupId+artifactId define the first part of folder path (in the repository) where the artifact is stored.
the artifact version is the second part of the folder path
the artifact version is also a suffix to the artifact name
the artifactId is the artifact name
the packaging is the artifact extension (default is jar)
By default maven use a repository located under <USER_HOME>/.m2/repository
The solution you are trying to setup use another location for the repository : ${project.basedir}/lib and even if it is not the default repository location it is still a maven-repository and so maven is expecting to find the usual maven repository hierarchy under this location.
That's why you need to organize your ${project.basedir}/lib folder just like a maven repository. That's explained in this part of the referenced post:
Use Maven to install to project repo
Instead of creating this structure by hand I recommend to use a Maven plugin to install your jars as artifacts. So, to install an artifact to an in-project repository under repo folder execute:
mvn install:install-file -DlocalRepositoryPath=lib -DcreateChecksum=true -Dpackaging=jar -Dfile=[your-jar] -DgroupId=[...] -DartifactId=[...] -Dversion=[...]
If you'll choose this approach you'll be able to simplify the repository declaration in pom to:
<repository>
<id>repo</id>
<url>file://${project.basedir}/lib</url>
</repository>
So you need to do an mvn install to create the ${project.basedir}/lib hierarchy (you can do it by hand, but it's not recommended and error prone).
I your case, the commands to run will be like this: (assuming you put the jar in your HOME_DIR and run this command in your ${project.basedir})
mvn install:install-file -DlocalRepositoryPath=lib -DcreateChecksum=true -Dpackaging=jar -Dfile=<USER_HOME>/db2jcc_license_cu.jar -DgroupId=com.ibm.db2.jcc -DartifactId=db2jcc_license_cu -Dversion=3.8.47
What are the advantages of the approch you choose :
a developer with no maven setup will have the libraries available inside the project sources, under SCM system.
you can easily reference jars that aren't in a public maven repository without the need of something like artifactory or nexus
The drawbacks :
a quite complex folder structure under ${project.basedir}/lib looking very strange for someone not used to work with maven.
you will store the libraries under SCM (lot's of huge binary files)
Another solution would be to download those jars before hand and put them somewhere relatively to your project (like lib directory). Now just tell maven to use those jars. Here the groupId, artifactdId and version are JFYI since they won't be used to download anything.
The merit of this solution is that you won't have to build a maven repository.
<dependencies>
...
<dependency>
<groupId>com.ibm.db2.jcc</groupId>
<artifactId>licences</artifactId>
<version>1.0</version> <!-- Adjust this properly -->
<scope>system</scope>
<systemPath>${basedir}/lib/db2jcc_license_cu.jar</systemPath>
</dependency>
<dependency>
<groupId>com.ibm.db2.jcc</groupId>
<artifactId>db2jcc4</artifactId>
<version>1.0</version> <!-- Adjust this properly -->
<scope>system</scope>
<systemPath>${basedir}/lib/db2jcc4.jar</systemPath>
</dependency>
<dependency>
<groupId>com.ibm.db2.jcc</groupId>
<artifactId>db2jcc_javax</artifactId>
<version>1.0</version> <!-- Adjust this properly -->
<scope>system</scope>
<systemPath>${basedir}/lib/db2jcc_javax.jar</systemPath>
</dependency>
</dependencies>
Refer Link (Japanese): Mavenリポジトリで提供されていないサードパーティJarをどうするか
I guess these jars do not have a pom.xml. Hence the warning. If the jars get packaged and the application works, then I guess you do not have a problem.
I am new to Maven. If I start new project with Maven, should I know any repository URLs for it to work?
For example, this Hibernate tutorial http://docs.jboss.org/hibernate/core/3.3/reference/en/html/tutorial.html says about how to create a sample project with pom.xml text. But this pom.xml does not contain any repositories.
So, my m2eclipse plugin says, for example Project build error: 'dependencies.dependency.version' for org.hibernate:hibernate-core:jar is missing., for all dependency tag in pom.xml
Is this because of repositories absence?
Where to know repositories URLs? Is there one big repository? Why doesn't it included by default?
UPDATE 1
It is said here, that Maven should use "central" repository by default: http://maven.apache.org/guides/introduction/introduction-to-repositories.html
I have searched there for hibernate-code artifact and found it. So, this artifact IS in central repository. By my maven says dependency not found. Hence it doesn't use it's central repository. Why?
Apparently your Hibernate dependency is missing <version> tag:
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>3.6.9.Final</version> <!-- this line is missing -->
</dependency>
Note that you don't have to specify version of dependencies previously declared in <dependencyManagement>.
Old answer:
Every build script (not only with Maven) should be reproducible and independent from environment. Standard pom.xml (called super pom), which every pom.xml inherits from, already defines main Maven central repository:
<repositories>
<repository>
<id>central</id>
<name>Maven Repository Switchboard</name>
<layout>default</layout>
<url>https://repo1.maven.org/maven2</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
You don't have to define this repository, and you don't have to define any others if all your dependencies are there. On the other hand if you are using some external repositories, you must add them to pom.xml, so that every developer is always able to build.
The bottom line is: if you can build the project having a completely empty repository, your pom.xml is fine.
It's not advisable to define repositories in POM files as that causes a lot of issues (Maven will search those repositories for ANY artifact even the ones available at Central, poor portability, ...)
Best approach: Setup a repository manager (Artifactory, Nexus) and edit your settings.xml file to use the repo manager as a mirror.
Second best approach: Define the required repositories in your settings.xml file, not in your pom.xml files.
Repositories in poms is a bad idea.
I need to try the current snapshot version 2.3.1 of Spring Web Flow in my project, hoping it will fix this bug for me. I have read the documentation on how to access nightly builds and added the following to my pom.xml:
<dependency>
<groupId>org.springframework.webflow</groupId>
<artifactId>spring-webflow</artifactId>
<version>2.3.1.BUILD-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.springframework.webflow</groupId>
<artifactId>spring-faces</artifactId>
<version>2.3.1.BUILD-SNAPSHOT</version>
</dependency>
And the repository needed:
<repository>
<id>org.springsource.maven.snapshot</id>
<name>SpringSource Maven Central-compatible Snapshot Repository</name>
<url>http://maven.springframework.org/snapshot</url>
</repository>
But when I try a mvn clean install maven fails to resolve the dependencies:
*[ERROR] ... The following artifacts could not be resolved: org.springframework.webflow:spring-webflow:jar:2.3.1.BUILD-SNAPSHOT, org.springframework.webflow:spring-faces:jar:2.3.1.BUILD-SNAPSHOT ...
Am I missing something obvious? Am I using the wrong snapshot version? Is there a way to list the contents of the snapshot repository? Any hints are appreciated...
P.S.: I cross-posted this question on the SpringSource community forum and will of course post the answer here if I get it there.
I could not find the version of the snap shot you have in the dependency, Here are all the web flow snap shot down loads that I can see from spring source site http://static.springsource.org/downloads/nightly/snapshot-download.php?project=SWF
If you change the version tag in you'r pom.xml that will resolve the issue.
<version>2.3.0.BUILD-SNAPSHOT</version>