In this post you will see how to prevent JAR creation using maven build tool if your application does not have the required Java classes or resource files. Actually you don’t need to create jar file when your project does not contain any Java or resource files. I will use
maven-jar-plugin which is used by default by maven build tool to create a JAR file.
For example, you will not basically let your maven tool to create a JAR file or you don’t want to create JAR file for your application when your application doesn’t have any resources and in this case you want to prevent your build tool to create jar file. Obviously the default packaging type for Java project is
Prevent JAR Creation
By default maven uses
maven-jar-plugin to generate a jar file from your Java project.
To prevent maven tool from generating such jar you need to override the
You can do this by applying two approaches – by overriding
configuration and by overriding
Use below configuration in your
So if your application does not contain any resources (Java or resource files) then it will not create any JAR file for your Java project.
<build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-jar-plugin</artifactId> <version>3.8.1</version> <configuration> <skipIfEmpty>true</skipIfEmpty> </configuration> </plugin> </plugins> </build>
Use below plugin configuration to prevent JAR file creation.
This will not create JAR file even if there is any Java or resource file.
If you are sure that your application does not contain any Java or resource file then you can use this configuration, otherwise you can use the previous configuration example otherwise this will not create a jar file even if your project has the Java files.
<build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-jar-plugin</artifactId> <version>3.8.1</version> <executions> <execution> <id>default-jar</id> <phase/> </execution> </executions> </plugin> </plugins> </build>
That’s all. Hope you got idea which configuration to use in what situation to prevent JAR creation using maven build tool.