What is very nice about this style of passing the main class instead of using a manifest is the same JAR can be used to run any main method.

customFatJar hinzu: Wir können auch vorhandene Gradle-Plugins verwenden, um ein Fettgefäß zu erstellen.

This is also where we handle building our fat JAR using the Shadow JAR plugin. It was taking minutes to execute the fatjar task whereas Shadow is in the 20 second range for a simple build. Pick whatever you are comfortable with. This JAR is directly executable by executing the JAR: Notice that trying to execute the output of the normal JAR tasks results in an error due to the Groovy library not being available on the classpath: This simple example can be found on Github – Shadow Blog. When deciding on your dependency manager in Java you have two main choices Maven and Gradle (or something more complex like Google's Bazel). Gradle version of Maven's Shade plugin. Nice writeup! This is a convenient location to split out our dependencies. The responsibility of clean quality software falls upon everyone that is involved in […]. build.gradle. I did the same thing; creating an executable jar using Gradle for my dropwizard project, and after some initial hickups, it works fine: https://github.com/bodiam/epub-organizer/blob/master/epub-organizer-dropwizard/epub-organizer-dropwizard.gradle.

When deciding on your dependency manager in Java, you have two main choices: Maven and Gradle (or something more complex like Google's Bazel). Can’t use the script creation though. You signed in with another tab or window. Your email address will not be published. Turning on failOnVersionConflict() will help track down and resolve all these issues. Die Antwort ist - es kommt darauf an. chore: Upgrade to Gradle 6.0 as the project minimum. ‘gradle publishToMavenLocal’ – the uber-jar is not created – my jars are without dependencies. ./gradlew clean build shadowjar This results in two JAR files in the build/libs directory: example-fat.jar - the fat JAR without sources; example.jar - a JAR with (only) the sources; The documentation of the Gradle Shadow plug-in states that. For example you may have a REST service that is split into 3 projects core for common models / logic, client for the HTTP client that interacts with the server and the server. You can always update your selection by clicking Cookie Preferences at the bottom of the page. @madorb have you tried version 2.0.4 that has some fixes for potential causes? fat-jar was taking ~8 minutes for us to build and shadow builds in 20 or 30 seconds. It would be great if you managed to make the plugin available in Maven Central to make it more accessible. Unfortunately, at the time, Gradle lacked a similar plugin (there are a variety of similar plugins but all had severe limitations for our application). Gradle Build Script(s) One sample snippet provided above and using following shadow task. The build.gradle file tends to get a bit cluttered, since dependencies are one of the most updated sections, and, self-contained, it's a great idea to split into its own file gradle/dependencies.gradle. privacy statement. The gradle/ directory is the default location for including gradle scripts. We’ll occasionally send you account related emails. Sign in You should now be able to run the self contained JAR java -Denv={env} -Xmx{max-heap} -cp '{path-to-jar}' {fully-qualified-class-with-main}. Gradle version of Maven's Shade plugin. -Task verwendet werden. This is wonderful! There is a 2.0.4-SNAPSHOT that has some changes to address this that you could try.

I use gradle with plugin shadow and all works well when I use ‘gradle shadowJar’. build.gradle.

Hey thanks man that helped quite a bit. 2. The plugin has very good documentation. Shadow has a larger feature set (ported from Maven’s shade plugin) and is MUCH faster than the fat-jar plugin. build.gradle. To Shadow enable your project, add the BinTray repository and the Shadow plugin dependency to your buildscript configuration like so: By default, Shadow will bundle all our your compile and runtime dependencies into an additional JAR with the classifier ‘shadow’ appended to it. they're used to log you in. -Attribut in der Manifestdatei. Marketing Blog.

The gradle/ directory is the default location for including Gradle scripts. It's mentioned up there if you read the entire question. You should now be able to run the self-contained JAR: What is very nice about this style of passing the main class instead of using a manifest is that the same JAR can be used to run any main method. This seems to solve a problem loading static content as well. Since we also stored all of our dependency strings in a variable, we can iterate them and force their versions to always be used libs.each { k, v -> force(v) }. Gradle Build Script(s) The fat jar part: In this case, any of the example servers can be run with this JAR. Ash.ta hey, thanks for the tips. Thanks for taking a look. We will be using the StubbornJava projects in the example but the separation of logic still holds. Since 1996, we have developed an impressive history of successful enterprise software projects using the best software developers with the best tools and technologies. Wir haben die Standard-Jar-Task überschrieben, eine separate Task erstellt und das Schatten-Plugin verwendet. The build.gradle file tends to get a bit cluttered, since dependencies are one of the most updated sections and self contained its a great idea to split into its own file gradle/dependencies.gradle. A third approach is to create a so-called "fat JAR" which is an executable JAR that includes not only your component's code, but also all of its dependencies. Save my name, email, and website in this browser for the next time I comment. The root project for StubbornJava is the root on the StubbornJava GitHub repository. In every other case and the reason why I wrote Shadow in the first place was because it was faster than using the zipTree method as it doesn't incur I/O costs by writing to the disk. Note Maven Shade plugin is a better plugin to create fat/uber jar, if compare with assembly plugin , because it provides class relocating feature, to avoid same class name conflict in the classpath. Dropwizard has a lot of transitive dependencies so that will obviously take longer. i'm actually seeing the same issue, but not sure what to provide for debugging? As titled, I'd like to know how to modify the gradle.build.kts in order to have a task to create a unique jar with all the dependencies (kotlin lib included) inside.. Wir können dieses Verhalten durch Hinzufügen einiger Codezeilen überschreiben. Grundsätzlich ist ein Fat Jar (auch als Uber-Jar bekannt) ein autarkes Archiv, das sowohl Klassen als auch Abhängigkeiten enthält, die zum Ausführen einer Anwendung erforderlich sind. Learn more, We use analytics cookies to understand how you use our websites so we can make them better, e.g. For our example embedded REST service. Notice stubbornjava-undertow is a dependency. We use essential cookies to perform essential website functions, e.g. Published at DZone with permission of Bill O'Neil. The root project for StubbornJava is the root on the StubbornJava GitHub Repository. ‘gradle publishToMavenLocal’ – the uber-jar is not created – my jars are without dependencies.


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