Eclipse could not find artifact on local maven-plugin module - eclipse

I have a maven project with 1 parent and 5 modules. One of the modules (call it P) is of packaging "maven-plugin", which is configured to be run in the execution phase "process-test-classes of other module (call it T).
The module T has pom.xml as follows. I omitted dependencies, but they don't include P. As in many other cases it all works perfectly in command line.
Question: Whatever I do Eclipse shows "Could not find artifact org.local.enhancer:pom:0.0.2-SNAPSHOT pom.xml /test line 1 Maven Configuration Problem".
Seems like the issue started after installing "m2e-wtp" v0.17 to resolve other issue with offending jars. Configuration is Eclipse Juno SR2, m2e v1.3.1, m2e-wtp v0.17.
<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>
<parent>
<artifactId>parent</artifactId>
<groupId>org.local</groupId>
<version>0.0.2</version>
<relativePath>..</relativePath>
</parent>
<artifactId>test</artifactId>
<dependencies>
...
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.local</groupId>
<artifactId>enhancer</artifactId>
<version>0.0.2-SNAPSHOT</version>
<executions>
<execution>
<phase>process-test-classes</phase>
<goals>
<goal>enhance</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
Does anybody have any insight on this? Thanks!

Related

Build Failure Error “maven-compiler-plugin:3.3.9 or one of its dependencies could not be resolved”

Am creating new java project using the pom.xml file. when i run the command mvn clean install am getting build failure error.
Can anyone please help me to resolve this issue.
and my pom.xml is like this
<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</groupId>
<artifactId>tasapitesting</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<name>tasapitesting</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<build>
<plugins>
<plugin>
<artifactId>maven-eclipse-plugin</artifactId>
<version>2.10</version>
<configuration>
<downloadSources>true</downloadSources>
<downloadJavadocs>true</downloadJavadocs>
<wtpversion>1.8</wtpversion>
</configuration>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.3.9</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
Maven Central doesn't seem to have a 3.3.9 build for maven-compiler-plugin (see here). Regardless, the 3.3 generation is quite old. Unless you absolutely, positively have to use such an old version, just move forward to a newer version that actually exists, like 3.6.0, and you should be fine.

Cannot add maven dependencies to deployment assembly in ejb packaging

I have a project with a POM that looks like this:
<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>
<parent>
<artifactId>my-parent</artifactId>
<groupId>com.company</groupId>
<version>2</version>
</parent>
<groupId>com.company</groupId>
<artifactId>resources-silo</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>ejb</packaging>
<name>Some EJB component</name>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-ejb-plugin</artifactId>
<configuration>
<ejbVersion>3.0</ejbVersion>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
<executions>
<execution>
<id>simple-command</id>
<phase>package</phase>
<goals>
<goal>attached</goal>
</goals>
<inherited>false</inherited>
</execution>
</executions>
</plugin>
</plugins>
</build>
<dependencies>
<!-- some jars ... -->
</dependencies>
</project>
I want to use m2eclipse with m2e-wtp to deploy this project to Glassfish 3. However, m2e-wtp does not deploy the dependencies. I know that building superjars with jar-with-dependencies is probably not the way to go for EJB projects, but I cannot really change this without messing up the customer's build / deployment processes.
So, the problem is that the deployment assembly wizard does not display the maven dependencies:
I need a solution that works without changing the pom.xml, since that would disturb the customer's build processes. I am aware that using an EAR would be the preferred solution here.
Is the behaviour that I'm seeing a bug or is it an inherent limitation in the way m2e-wtp and the ejb packaging work?
Is it even possible to have m2e-wtp extract dependency jars into the deployed application?

In IntelliJ Scala plugin, can I use scala-compiler.jar retrieved via <dependency> in `pom.xml`?

In IntelliJ, I created a blank Maven project, and added to pom.xml:
<dependency>
<groupId>org.scala-lang</groupId>
<artifactId>scala-compiler</artifactId>
<version>2.11.0-M3</version>
<scope>compile</scope>
</dependency>
I then went to Project Settings -> Modules -> + -> Scala, and specified the compiler jar from the drop-down menu as Maven: org.scala-lang:scala-compiler:2.11.0-M3. I receive the error:
Compiler library: no scala-library*.jar found
Of course, scala-library-2.11.0-M3.jar is among the dependencies (transitively), but not stored in the same folder as scala-compiler-2.11.0-M3.jar, which is what seems to be confusing the Scala plugin.
Is there any way to use scala-compiler*.jar downloaded from a pom.xml dependency? Perhaps by manually specifying where to find each JAR?
Before this, I had been using scala-compiler*.jar downloaded via Project Settings -> Libraries -> + -> From Maven. This seems to work because IntelliJ sticks all the downloaded JARs in the same folder, which is what the Scala plugin assumes. Simply for aesthetic reasons I would like to know if it can be done with pom.xml.
You don't need the scala-compiler as a dependency to be able to build the scala project (neither using maven at command line nor by building from Build | Make Project in IntelliJ).
This is a very simple pom.xml that I use for scala projects where I don't have scala installed at all and just point IntelliJ to this pom and then I can compile and run any scala code directly from within IntelliJ.
<?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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.stackoverflow</groupId>
<artifactId>scala-app</artifactId>
<version>1.0-SNAPSHOT</version>
<name>${project.artifactId}-${project.version}</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<scala.version>2.10.1</scala.version>
</properties>
<dependencies>
<dependency>
<groupId>org.scala-lang</groupId>
<artifactId>scala-library</artifactId>
<version>${scala.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.scala-tools</groupId>
<artifactId>maven-scala-plugin</artifactId>
<version>2.15.2</version>
<executions>
<execution>
<id>scala-compile</id>
<goals>
<goal>compile</goal>
<goal>testCompile</goal>
</goals>
<configuration>
<args>
<arg>-make:transitive</arg>
<arg>-dependencyfile</arg>
<arg>${project.build.directory}/.scala_dependencies</arg>
</args>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>

Compiling LESS CSS with Maven and m2e-wtp

I'm trying to compile LESS CSS files with lesscss-maven-plugin, both in pure maven (with command line) and within Eclipse (Juno).
In the lesscss-maven-plugin, I need to define an output directory, but I noticed that in Eclipse WTP copies files from target/m2e-wtp in my server (JBoss), but that this directory is ignored by the war plugin of Maven.
I succeeded to reach my goal with Maven profiles : in Eclipse I use a m2e profile configured in Project settings, so I can define two different destination folders depending on I build in Eclipse or not.
Here is my pom.xml :
<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.dgadev.motd</groupId>
<artifactId>motd</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<properties>
<maven.compiler.source>7</maven.compiler.source>
<maven.compiler.target>7</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
....
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.lesscss</groupId>
<artifactId>lesscss-maven-plugin</artifactId>
<version>1.3.3</version>
<configuration>
<outputDirectory>${project.build.directory}/resources/css</outputDirectory>
</configuration>
<executions>
<execution>
<goals>
<goal>compile</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<profiles>
<profile>
<id>m2e</id>
<build>
<plugins>
<plugin>
<groupId>org.lesscss</groupId>
<artifactId>lesscss-maven-plugin</artifactId>
<version>1.3.3</version>
<configuration>
<outputDirectory>${project.build.directory}/m2e-wtp/web-resources/resources/css</outputDirectory>
</configuration>
<executions>
<execution>
<goals>
<goal>compile</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
</profiles>
This works, but is there a better way to do this, without the profile trick ?
I found another solution with a different less compiler : wro4j. With this compiler, both exists maven and m2e plugins.
In addition, a tutorial (for building boostrap) can be found here: m2e-wro4j
The same solution you provided, a bit cleaner :
https://github.com/marceloverdijk/lesscss-maven-plugin/issues/8
The m2e profile is activated with a m2e variable, so you don't have to select it.

Why can't maven plugin work with eclipse java compiler?

I installed m2eclipse plugin in my eclipse.I have a java project in eclipse. Then I add a pom.xml into the root folder of my project. Convert my project into maven project. Now the problem comes: I can download jar contained in pom.xml, but can't import it into my java file.
Always got java compile error in my project. In package explorer view,I can see maven dependencies.
I have tried this:maven clean, restart eclipse, project clean.
Here is my pom.xml
<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>TomLabs</groupId>
<artifactId>TomLabs</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>test</name>
<description>Tom source code</description>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>javax.media</groupId>
<artifactId>jmf</artifactId>
<version>2.1.1e</version>
</dependency>
</dependencies>
</project>
One possibility could be the package/class what you are trying to import is not available in the version of the jar file you have mentioned in the pom.xml.