Note that this is only the plugin definition, not the full pom.xml: (Pick a appropriate to your project.). Differences between "java -cp" and "java -jar"? For me this error occurred simply because I forgot tell Eclipse that I wanted a runnable jar file and not a simple library jar file. The Main-Class attribute, and any required Class-Path , will be inserted into the JAR's manifest by the build process. Take time to understand ! You Can Simply follow this step by adding following lines to pom file made it work. java -cp [Your JAR].jar [complete package].MainClass Note that there are several ways to get this done either with the CLI, Maven, Ant or Gradle: For CLI, the following command will do: (tks @dvvrt) Copyright © 2020 More Of Less. What tripped me over was this: Warning: The text file from which you are creating the manifest must Change it from -/src/main/java to -/src/main/resources. If your executable jar is not running, which means it is not created properly. I wrote *.class instead and it works now. To compile your code with your .class files ending up with the structure given by the package name use: The -d . Note that jar-with-dependencies should be literally put as, not to be replaced with the jar file names you want to include. However with this information you can perhaps get some better help (given the fact that you have the same problem as I). java -jar "C:\folder name\app.jar"). Create a jar file using, While running the jar file simple run like this. Open the jar file with WinRAR. Once export the jar file, use the below command to execute. Jar Netbeans. That should have been java -jar app.jar instead of java -jar "app".. The plugin will make sure the build process of your application with all necessary steps. addClasspath, classpathPrefix were absent (deleted them), mainClass was missing the "com." Since your are running an executable jar file, Java will look for the manifest MANIFEST.MF located under META-INF/ which contains information about the files packaged.. Java must know the main class to run. Featured on Meta Feedback post: Moderator review and reinstatement processes You can find this by going to the Projects explorer in Netbeans and click on your project’s Project Files folder, once expanded you should see the pom file, double-click it to edit it directly in Netbeans. javascript - How to check a radio button with jQuery? java - What is the "Execute Around" idiom? on Thursday, July 28, 2016. If you edit your manifest by hand be sure to keep the newline at the end otherwise java doesn't recognize it. This will create a copy of the file to your current directory so you can read it. The important things to note here are P and e. Then comes the name of the jar we want test.jar. For me, none of the answers really helped - I had the manifest file in correct place, containing the Main-Class and everything. If u're using gradle, just add next one in ur gradle.build: Where com.company.project.MainClass path to ur class with public static void main(String[] args) method. Recientemente empecé a jugar con Maven en Java. ). ... También tengo Maven 3 y encontré algunas de las sugerencias en la web que no coinciden con el código maven usado con Netbeans también. I had the same issue today. If you want to have your .class files in packages, add the package in the beginning of the .java. Wondering how you could look at what's inside a jar file? Create a text file called MANIFEST.MF in a folder called META-INF Properties->Run->Main Class->Browse to specify), Open the jar file with a zip editor like WinRAR, Main-Class: package.ex.com.views.mainClassName, Drag the file out modify the MANIFEST.MF to add the previous line, specify the main class of your project using. Check your .jar file in a zip program. As you might be knowing, Apache NetBeans 11.0 no longer allows a simple Java application; instead, you must create an application with Maven, Ant or Gradle. I had this problem and i solved it recently by doing this in Netbeans 8 (Refer to the image below): If you don't have package you have to ignore that part, like this: most of the solutions did not work for me but my instructor helped me out Time comes to test my project, it works fine in the NetBeans window, running the main class found in App.java (com.MyCompany.App), but when I try to run it from a command line I get an error: java -jar fileName.jar "No Main Manifest Attribute" in fileName.jar Looking at other projects which did work, I noticed some minor differences in the manifest lines: Not sure why (I am only 3 months into java) or how, but can only say this worked. Jar Netbeans. When you run your JAR project from inside the Netbeans IDE you can set the main class from the Run tab of Project Properties, which means the code executes fine from within the IDE.

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