Java Maven project creating failed in ecilipse - java

when I am creating new maven project in eclipse, it failed to create project.
its about dependencies.. I am uploading screen shot
I am creating project with jar packaging.
What could be the reason?

Try to do these steps:
1: Delete .M2 Content 2
3: Close Eclipse..and reopen
4: clean and update project configuration
5: verify the java buld path used for the project configuration
6: Try use the Maven embedded in eclipse just for a test, to see if the problem is the external Maven installation corrupted

Ensure you have declared your maven resource plugin correctly in your pom.xml and also post your pom.xml for other users to see.
<build>
<pluginManagement>
<plugins>
<plugin>
<dependency>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>2.6</version>
</dependency>
</plugin>
</plugins>
</pluginManagement>
</build>

Related

while using local external library in maven, it throws SurefireBooterForkException error

I have created jar of maven project, which contains 2 packages and many different classes.
Then, I copied the jar file into another project folder and added dependency as below
<dependency>
<groupId>com.testproject</groupId>
<artifactId>test-project</artifactId>
<version>0.1</version>
<scope>system</scope>
<systemPath>${project.basedir}/lib/test_project.jar</systemPath>
</dependency>
also added additionalClasspathElements within surefire plugin as below
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>3.0.0-M3</version>
<configuration>
<additionalClasspathElements>
<additionalClasspathElement>
${project.basedir}/lib/test_project.jar
</additionalClasspathElement>
</additionalClasspathElements>
Now, when I try to extend/inherit any class from the jar file, I am able to see all my methods but when I try to run command mvn test it throws SurefireBooterForkException as below
Can someone please help me in resolving above error?

Installing local jar file to maven repo without using command line

I have a maven project that I just added some features to and in order to do so I had to add a local jar dependency. I have added this jar file to the lib folder of the project on Github, and I want to make it so anyone who downloads the project off Github can install that jar to their m2 directory without having to use the maven install:install-file command through command line. The POM file has the dependency already but I need a way to programmatically install the jar file when building the snapshot with mvn install.
Thoughts?
Option 0:
Deploy the jar file to a public or comany-wide maven repository. If the project producing this jar is also a git(hub) project, consider using a service like Jitpack
Option 1:
Ugly, but could work.
<dependency>
<groupId>com.bar</groupId>
<artifactId>foo</artifactId>
<version>42</version>
<scope>system</scope>
<systemPath>${project.basedir}/lib/foo-42.jar</systemPath>
</dependency>
Option 2:
Even more ugly, but could work even better.
<build>
<plugins>
<plugin>
<artifactId>maven-install-plugin</artifactId>
<executions>
<execution>
<id>install-foo</id>
<goals>
<goal>install-file</goal>
</goals>
<phase>generate-sources</phase>
<configuration>
<groupId>com.bar</groupId>
<artifactId>foo</artifactId>
<version>42</version>
<file>${project.basedir}/lib/foo-42.jar</file>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>

Maven changing output directory for jar doesn't work

I build my project with mvn clean install, however I want to generate a subfolder in the target folder and put the generated jar file in there. I saw these two questions Maven: specify the outputDirectory only for packaging a jar? and maven: how to place the output jar into another folder however their answer doesn't seem to work.
This is how my maven build looks like:
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>2.3.1</version>
<configuration>
<outputDirectory>${project.build.directory}/blah</outputDirectory>
</configuration>
</plugin>
</plugins>
</build>
However I get the .jar file still in target directory. I also noticed that the project packaging is set as <packaging>eclipse-plugin</packaging> if I change this to jar, then it works fine, however I do need it to be eclipse-plugin. I am also using tycho for the eclipse plugin. Am I missing something that was not mentioned before?
From your packaging of eclipse-plugin I'm guessing you're using Tycho. Tycho doesn't seem to use any of the maven plugins, so configuring the maven-jar-plugin isn't going to help. Instead try configuring the tycho-packaging-plugin, specifically the buildDirectory property:
<plugin>
<groupId>org.eclipse.tycho</groupId>
<artifactId>tycho-packaging-plugin</artifactId>
<version>${tycho-version}</version>
<configuration>
<buildDirectory>${project.build.directory}/blah</buildDirectory>
</configuration>
</plugin>

POM for Maven Compiler Plugin Jar is missing

EDIT: I've just updated my Eclipse installation from Kepler to Luna - all of my Maven projects were running fine before the update
I am receiving the error which is preventing my Maven project from installing:
The POM for org.apache.maven.plugins:maven-compiler-plugin:jar:2.5.1 is missing, no dependency information available
And when I navigate to Maven's Lifecycle Mapping in Eclipse I see
compiler:compile | error
compiler:text Compile | error
I have maven-compiler-plugin:jar:3.1 (including the POM file) in my .m2 repository and would like to use that instead.
How could this be configured in Eclipse? Alternatively, if this is not the solution to the problem, how could this be resolved?
You need to edit your pom.xml to set the version of the compiler plugin to be used. As described on the plugin's homepage, you configure the maven-compiler-plugin in the build-section of your project's pom.xml like so:
<project>
...
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<!-- put your configurations here -->
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>
...
</project>
If you want to use the local repository of your Maven installation (instead of Eclipse's embedded version), go to Preferences -> Maven -> Installations and add your Maven installation there.

How to tell IntelliJ to use folder "web" instead of "webapp" for maven when building a war file?

What I do is:
Create a new project with IntelliJ with Maven module.
Add Framework support to this project and pick: JSF.
Go to pom.xml and add: packaging: war.
And from Maven window in IntelliJ I click: Clean Install.
Well build fails, because maven is looking for a webapp directory instead of a directory called web. For building the project.
So, if I rename the folder web to webapp build goes fine.
However, I want to learn more about IntelliJ and maven, so I want to force maven to use the folder web. How can I properly do this
Using the command line? I mean without invvolving IntelliJ at all?
Using Intellij?
Regards.
You can configure this in the pom.xml file for your project.
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<configuration>
<warSourceDirectory>web</warSourceDirectory>
</configuration>
</plugin>
</plugins>
You can find the documentation here
If IntelliJ behaves as expected, it should pick up this new configuration.
Have a look at this post, which explains how to change the default webapp directory:
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.3</version>
<configuration>
<warSourceDirectory>web</warSourceDirectory>
</configuration>
</plugin>
</plugins>
</build>

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