Problems with the . jar

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Good morning guys, good I have a Maven project running over Netbeans however, the .jar generated says at time of execution: "no major manifest attribute in example.jar".

I heard there might be some problem in the file MANIFEST.MF, but I did not succeed in modifying it, I also heard about a plugin called maven-shade-plugin, that could help generate the . jar with the dependencies, but I did not understand how to use it, so I would like a help from you to be able to generate the blessed executable.

I would like to thank the whole community beforehand for the excellent work done in this forum.

java jar

1 answer

1

Failed to specify which class has the main.

<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-jar-plugin</artifactId>
            <configuration>
              <archive>
                <manifest>
                    <mainClass>com.mycompany.stackoverflow.teste.App</mainClass>
                </manifest>
              </archive>
            </configuration>
        </plugin>
    </plugins>
</build>

The main class is placed in the mainClass tag. This snippet has to be added to the pom.xml file within the project tag.

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