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Update packaging example to leverage 4.3.0 mergeable meta-data #208

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Sep 25, 2025
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Update packaging example to leverage 4.3.0 mergeable meta-data #208

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6 changes: 1 addition & 5 deletions examples/packaging/README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -160,15 +160,11 @@ That said, it is possible to create a fat Jar for your Helidon application.

#### Fat Jar Distribution

This example uses the `maven-assembly-plugin` with the `helidon-assembly-extension` to create a fat jar.
Specifically see:
This example uses the `maven-assembly-plugin` to create a fat jar. Specifically see:

1. The `fat-jar` profile in the [pom.xml](./pom.xml) to configure the plugin.
2. The assembly descriptor in [fat-assembly.xml](./src/main/assembly/fat-assembly.xml).

Note that the plugin and descriptor use the `helidon-assembly-extension` which handles merging
of Helidon json metadata that resides in Helidon jar files.

To generate the fat jar:

```shell
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8 changes: 0 additions & 8 deletions examples/packaging/pom.xml
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Expand Up @@ -30,7 +30,6 @@

<properties>
<mainClass>io.helidon.examples.packaging.Main</mainClass>
<helidon.build-tools.version>4.0.20</helidon.build-tools.version>
</properties>

<dependencies>
Expand Down Expand Up @@ -109,13 +108,6 @@
</goals>
</execution>
</executions>
<dependencies>
<dependency>
<groupId>io.helidon.build-tools</groupId>
<artifactId>helidon-assembly-extension</artifactId>
<version>${helidon.build-tools.version}</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>
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10 changes: 8 additions & 2 deletions examples/packaging/src/main/assembly/fat-assembly.xml
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Expand Up @@ -33,10 +33,16 @@

<containerDescriptorHandlers>
<containerDescriptorHandler>
<handlerName>helidon</handlerName>
<handlerName>metaInf-services</handlerName>
</containerDescriptorHandler>
<containerDescriptorHandler>
<handlerName>metaInf-services</handlerName>
<!-- Merge Helidon's meta-data manifest file. -->
<!-- Not strictly required, but more correct and efficient -->
<handlerName>file-aggregator</handlerName>
<configuration>
<filePattern>META-INF/helidon/manifest</filePattern>
<outputPath>META-INF/helidon/manifest</outputPath>
</configuration>
</containerDescriptorHandler>
</containerDescriptorHandlers>

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