diff --git a/README.md b/README.md
index b724785..f6d5277 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,33 @@
-# action-template
-github action template
+# setup-java
+
+GitHub action to setup and configure java.  
+The aim is to abstract [public setup-java action](https://github.com/actions/setup-java) 
+to allow homemade customization, for example adding root ca certificate to the java truststore
+
+## Usage example
+
+```shell
+name: Release
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    if: "contains(github.event.head_commit.message, vars.SKIP_CI_PREFIX) != true"
+
+    runs-on: runner
+    steps:
+      - uses: RouxAntoine/checkout@v3.5.4
+
+      - uses: antoine-roux.tk/projects/actions/setup-java@v1.0.0
+
+      - uses: RouxAntoine/auto-changie@v1.0.1
+
+      - name: Push changelog
+        uses: stefanzweifel/git-auto-commit-action@v5
+        with:
+          commit_message: "${{ vars.SKIP_CI_PREFIX }} Push updated changelog"
+```
diff --git a/action.yml b/action.yml
index c3f75f2..2dc92c6 100644
--- a/action.yml
+++ b/action.yml
@@ -1,33 +1,39 @@
-name: 'Action-template'
-description: 'Github action template'
+name: 'setup-java'
+description: |
+  Github action to setup java and adding custom root certificate in the truststore
+  see more information in official setup-java action
+  https://github.com/actions/setup-java
 branding:
-  icon: file
-  color: orange
+  icon: zap
+  color: gray-dark
 inputs:
-  sample-input:
-    description: 'input example'
-    default: 'default-value'
+  version:
+    description: 'java version to setup'
+    default: '21'
+    required: false
+  distribution:
+    description: 'java distribution to setup'
+    default: 'temurin'
     required: false
 runs:
   using: "composite"
   steps:
-    - name: Set GitHub Path example
-      run: echo "$GITHUB_ACTION_PATH" >> $GITHUB_PATH
-      shell: bash
-      env:
-        GITHUB_ACTION_PATH: ${{ github.action_path }}
+    - name: Retrieve root ca certificate
+      id: get-ca-cert
+      uses: RouxAntoine/get-ca-cert@v1.0.0
 
-    - name: Set Github secret output result example
-      id: sets-a-secret
-      shell: bash
-      run: |
-        the_secret=$((RANDOM))
-        echo "::add-mask::$the_secret"
-        echo "secret-number=$the_secret" >> "$GITHUB_OUTPUT"
+    - name: Setup java ${{ inputs.distribution }} version ${{ inputs.version }}
+      uses: actions/setup-java@v4
+      id: java
+      with:
+        distribution: "${{ inputs.distribution }}"
+        java-version: "${{ inputs.version }}"
+        overwrite-settings: false
 
-    - name: Set Github output result example
-      id: sets-output
-      shell: bash
-      run: |
-        output_number=$((RANDOM))
-        echo "output-number=$output_number" >> "$GITHUB_OUTPUT"
\ No newline at end of file
+    - name: Add root certificate to java truststore
+      uses: RouxAntoine/add-ca-truststore@v1.1.0
+      id: add-ca-to-truststore
+      with:
+        alias-name: antoine-roux.tk
+        ca-cert: "${{ steps.get-ca-cert.outputs.ca-cert }}"
+        store-path: "${{ steps.java.outputs.path }}/lib/security/cacerts"