Tips on how to Make a Java Jar File Executable

Let’s say you might have a Java challenge as follows:

package deal thing;
public class MyProject {
    public static void predominant(String...args) throws Exception {
        System.out.println("Hiya world!");

Now you wish to construct this and make it a self contained executable Jar.

In the event you do a mvn clear set up or mvn clear package deal, and try to run it as follows:

java -jar goal/my-java-1.0-SNAPSHOT.jar

You’ll get the next error:

no predominant manifest attribute, in goal/my-java-1.0-SNAPSHOT.jar

Tips on how to Resolve no predominant manifest attribute error

You may clear up this error by including the next in your pom.xml file:

                        <mainClass> thing.MyProject</mainClass>

Now construct your resolution like this:

mvn clear set up package deal

Then run your standalone Jar as follows:

java -jar goal/my-java-1.0-SNAPSHOT.jar

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