Merge pull request #323 from graalvm/archive-demos-4

[GR-60094] Review and move native-image-configure-examples to archive.

Author: olyagpl

.github/workflows/native-image-configure-examples.yml renamed to .github/workflows/archive-class-initialization-examples.yml

@@ -1,41 +1,36 @@
-name: native-image-configure-examples
+name: archive/class-initialization-examples
 on:
   push:
     paths:
-      - 'native-image-configure-examples/**'
-      - '.github/workflows/native-image-configure-examples.yml'
+      - 'archive/class-initialization-examples/**'
+      - '.github/workflows/archive-class-initialization-examples.yml'
   pull_request:
     paths:
-      - 'native-image-configure-examples/**'
-      - '.github/workflows/native-image-configure-examples.yml'
-  schedule:
-    - cron: "0 0 1 * *" # run every month
+      - 'archive/class-initialization-examples/**'
+      - '.github/workflows/archive-class-initialization-examples.yml'
   workflow_dispatch:
 permissions:
   contents: read
 jobs:
   run:
-    name: Run 'native-image-configure-examples'
+    name: Run 'archive/class-initialization-examples'
     runs-on: ubuntu-latest
     timeout-minutes: 15
-    strategy:
-      matrix:
-        java-version: ['21', 'latest-ea']
     steps:
       - uses: actions/checkout@v4
       - uses: graalvm/setup-graalvm@v1
         with:
-          java-version: ${{ matrix.java-version }}
+          java-version: '21'
           distribution: 'graalvm'
           github-token: ${{ secrets.GITHUB_TOKEN }}
           cache: 'maven'
       - name: Run 'configure-at-runtime-example'
         run: |
-          cd native-image-configure-examples/configure-at-runtime-example
+          cd archive/class-initialization-examples/configure-at-runtime-example
           mvn --no-transfer-progress package
           ./target/runtime-example
       - name: Run 'configure-at-buildtime-example'
         run: |
-          cd native-image-configure-examples/configure-at-buildtime-example
+          cd archive/class-initialization-examples/configure-at-buildtime-example
           mvn --no-transfer-progress package
           ./target/buildtime-example

README.md

@@ -48,8 +48,8 @@ cd graalvm-demos
       <td align="left" width="70%">Demonstrates how the Graal compiler can achieve better performance for highly abstracted programs like those using Streams, Lambdas<br><strong>Technologies: </strong>Graal compiler, C2<br><strong>Reference: </strong><a href="https://luna.oracle.com/lab/d502417b-df66-45be-9fed-a3ac8e3f09b1/steps#task-2-run-demos-java-microbenchmark-harness-jmh">Simple Java Stream Benchmark</a></td>
     </tr>
     <tr>
-      <td align="left" width="30%"><a href="/native-image-configure-examples/">native-image-configure-examples</a><br><a href="https://github.com/graalvm/graalvm-demos/actions/workflows/streams.yml"><img alt="streams" src="https://github.com/graalvm/graalvm-demos/actions/workflows/streams.yml/badge.svg" /></a></td>
-      <td align="left" width="70%">Demonstrates how you can influence the classes initialization at the image build time<br><strong>Technologies: </strong>Native Image, Maven<br><strong>Reference: </strong><a href="https://medium.com/graalvm/understanding-class-initialization-in-graalvm-native-image-generation-d765b7e4d6ed">Understanding Class Initialization in GraalVM Native Image Generation</a></td>
+      <td align="left" width="30%"><a href="/multithreading-demo/">multithreading-demo</a><br><a href="https://github.com/graalvm/graalvm-demos/actions/workflows/streams.yml"><img alt="streams" src="https://github.com/graalvm/graalvm-demos/actions/workflows/streams.yml/badge.svg" /></a></td>
+      <td align="left" width="70%">Demonstrates how to optimize a Java application that does synchronous and asynchronous threads execution<br><strong>Technologies: </strong>Native Image Build Reports, Native Build Tools Maven plugin <br><strong>Reference: </strong><a href="https://medium.com/graalvm/making-sense-of-native-image-contents-741a688dab4d">Making sense of Native Image contents</a></td>
     </tr>
     <tr>
       <td align="left" width="30%"><a href="/javagdbnative/">javagdbnative</a><br><a href="https://github.com/graalvm/graalvm-demos/actions/workflows/javagdbnative.yml"><img alt="javagdbnative" src="https://github.com/graalvm/graalvm-demos/actions/workflows/javagdbnative.yml/badge.svg" /></a></td>

native-image-configure-examples/README.md renamed to archive/class-initialization-examples/README.md

@@ -20,28 +20,28 @@ In both examples we use the Jackson framework to parse a JSON file to determine
 
 1. Download and install the latest GraalVM JDK using [SDKMAN!](https://sdkman.io/).
     ```bash
-    sdk install java 21.0.1-graal
+    sdk install java 21.0.5-graal
     ```
 
-2. Download or clone the repository and navigate into the `native-image-configure-examples` directory:
+2. Download or clone the repository and navigate into the `class-initialization-examples` directory:
     ```bash
     git clone https://github.com/graalvm/graalvm-demos
     ```
     ```bash
-    cd graalvm-demos/native-image-configure-examples
+    cd graalvm-demos/archive/class-initialization-examples
     ```
 
 ## Build and Run Examples
 
 1. Change to one of the demo subdirectories, for example, `configure-at-runtime-example`:
     ```bash
-    cd graalvm-demos/native-image-configure-examples/configure-at-runtime-example
+    cd configure-at-runtime-example
     ```
 2. Build the project:
     ```bash
     mvn package
     ```
-3. Once the Maven build succeeds, a native executable called "runtime-example" will be generated in the `configure-at-runtime-example/target/` directory. Run it:
+3. Once the Maven build succeeds, a native executable called "runtime-example" will be generated in the _configure-at-runtime-example/target/_ directory. Run it:
     ```bash
     ./target/runtime-example
     ```
@@ -63,7 +63,4 @@ In both examples we use the Jackson framework to parse a JSON file to determine
 
 Loading application configuration at executable build time can speed up application startup.
 
-### Related Documentation
-
-- [Build-Time Initialization](https://www.graalvm.org/latest/reference-manual/native-image/optimizations-and-performance/ClassInitialization/)
-- [Initialize Once, Start Fast: Application Initialization at Build Time](http://www.christianwimmer.at/Publications/Wimmer19a/Wimmer19a.pdf)
+Learn more about [Class Initialization in Native Image](https://www.graalvm.org/latest/reference-manual/native-image/optimizations-and-performance/ClassInitialization/) at the website, and from the blog post [Understanding Class Initialization in GraalVM Native Image Generation](https://medium.com/graalvm/understanding-class-initialization-in-graalvm-native-image-generation-d765b7e4d6ed).

native-image-configure-examples/configure-at-buildtime-example/pom.xml renamed to archive/class-initialization-examples/configure-at-buildtime-example/pom.xml

@@ -10,7 +10,7 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <native.maven.plugin.version>0.10.2</native.maven.plugin.version>
+        <native.maven.plugin.version>0.10.4</native.maven.plugin.version>
         <jackson.version>2.16.0</jackson.version>
     </properties>
 
@@ -83,9 +83,6 @@
                 <configuration>
                     <skip>false</skip>
                     <imageName>buildtime-example</imageName>
-                    <buildArgs>
-                        --no-fallback
-                    </buildArgs>
                 </configuration>
             </plugin>
         </plugins>