diff --git a/.github/workflows/verify-platform.yml b/.github/workflows/verify-platform.yml
index f50f55f6c7..ab9847a030 100644
--- a/.github/workflows/verify-platform.yml
+++ b/.github/workflows/verify-platform.yml
@@ -30,10 +30,9 @@ jobs:
       uses: actions/setup-java@8df1039502a15bceb9433410b1a100fbe190c53b # v4.5.0
       with:
         java-version: |
-            8
             11
-            21
             17
+            21
         distribution: 'temurin'
     - name: Cache local Maven repository
       uses: actions/cache@6849a6489940f00c2f30c0fb92c6274307ccb58a # v4.1.2
@@ -59,7 +58,7 @@ jobs:
         clean install
     - name: Run Platform Build
       env:
-       JAVA_HOME: ${{ env.JAVA_HOME_17_X64 }}
+       JAVA_HOME: ${{ env.JAVA_HOME_21_X64 }}
       working-directory: 'aggregator'
       run: >- 
         mvn -U -V -e -B -ntp
diff --git a/.github/workflows/verify-platform2.yml b/.github/workflows/verify-platform2.yml
index 4422e1530a..3708270138 100644
--- a/.github/workflows/verify-platform2.yml
+++ b/.github/workflows/verify-platform2.yml
@@ -31,8 +31,8 @@ jobs:
       with:
         java-version: |
             11
-            21
             17
+            21
         distribution: 'temurin'
     - name: Cache local Maven repository
       uses: actions/cache@6849a6489940f00c2f30c0fb92c6274307ccb58a # v4.1.2
@@ -57,7 +57,7 @@ jobs:
         clean install
     - name: Run Platform Build
       env:
-       JAVA_HOME: ${{ env.JAVA_HOME_17_X64 }}
+       JAVA_HOME: ${{ env.JAVA_HOME_21_X64 }}
       working-directory: 'platform'
       run: >- 
         xvfb-run mvn
diff --git a/.github/workflows/verify-platform3.yml b/.github/workflows/verify-platform3.yml
index 7b75943706..5356b2cd5e 100644
--- a/.github/workflows/verify-platform3.yml
+++ b/.github/workflows/verify-platform3.yml
@@ -40,8 +40,8 @@ jobs:
       with:
         java-version: |
             11
-            21
             17
+            21
         distribution: 'temurin'
     - name: Cache local Maven repository
       uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
@@ -55,6 +55,8 @@ jobs:
       with:
         maven-version: 3.9.9
     - name: Build Tycho
+      env:
+        JAVA_HOME: ${{ env.JAVA_HOME_17_X64 }}
       working-directory: 'tycho'
       run: >- 
         mvn -U -V -e -B -ntp
@@ -63,6 +65,8 @@ jobs:
         -T1C
         clean install
     - name: Run Platform SWT Build
+      env:
+        JAVA_HOME: ${{ env.JAVA_HOME_21_X64 }}
       working-directory: 'swt'
       shell: bash
       run: >-