diff --git a/.github/workflows/deploy-release.yml b/.github/workflows/deploy-release.yml
index cae7ea1b..1af3ef04 100644
--- a/.github/workflows/deploy-release.yml
+++ b/.github/workflows/deploy-release.yml
@@ -287,12 +287,28 @@ jobs:
         with:
           ref: ${{ needs.preflight.outputs.release_sha }}
 
+      - name: Install pinned Java 25 Mavenizer runtime
+        uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5
+        with:
+          distribution: temurin
+          java-version: '25.0.3+9.0.LTS'
+
+      - name: Install pinned Java 8 launcher toolchain
+        uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5
+        with:
+          distribution: temurin
+          java-version: '8.0.502+7'
+
       - name: Install target Java toolchain
         uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5
         with:
           distribution: temurin
           java-version: ${{ needs.preflight.outputs.java_setup_version }}
 
+      - name: Record target Java toolchain path
+        shell: bash
+        run: echo "ORESPAWN_TARGET_JAVA_HOME=$JAVA_HOME" >> "$GITHUB_ENV"
+
       - name: Install separate Java for Gradle
         if: needs.preflight.outputs.install_gradle_java == 'true'
         uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5
@@ -303,22 +319,48 @@ jobs:
       - name: Set up Gradle
         uses: gradle/actions/setup-gradle@9c971963bec38e04b3d30dcc455b5382be2fdbfb # v6
 
+      - name: Resolve explicit Gradle Java installations
+        id: java-paths
+        shell: bash
+        run: |
+          set -euo pipefail
+          candidates=(
+            "$JAVA_HOME_25_X64"
+            "$JAVA_HOME_8_X64"
+            "$ORESPAWN_TARGET_JAVA_HOME"
+            "$JAVA_HOME"
+          )
+          paths=
+          for candidate in "${candidates[@]}"; do
+            test -x "$candidate/bin/java"
+            canonical="$(cd "$candidate" && pwd -P)"
+            if [[ ",$paths," != *",$canonical,"* ]]; then
+              paths="${paths:+$paths,}$canonical"
+            fi
+          done
+          echo "paths=$paths" >> "$GITHUB_OUTPUT"
+
       - name: Build, test, and audit once
         env:
           LOADER_NAME: ${{ needs.preflight.outputs.loader_name }}
         run: |
           set -euo pipefail
           chmod +x ./gradlew
+          java_args=(
+            "-Dorg.gradle.java.installations.paths=${{ steps.java-paths.outputs.paths }}"
+            -Dorg.gradle.java.installations.auto-detect=false
+            -Dorg.gradle.java.installations.auto-download=false
+          )
           if [[ "$LOADER_NAME" == "neoforge" ]]; then
             # NeoGradle resolves model inputs during configuration under build/tmp.
             # Cleaning in the same invocation removes those inputs before setup runs.
-            ./gradlew clean --no-daemon --stacktrace --max-workers=2
+            ./gradlew clean --no-daemon --stacktrace --max-workers=2 "${java_args[@]}"
             ./gradlew check build javadoc verifyReleaseArtifacts writeReleaseChecksums \
-              --no-daemon --stacktrace --max-workers=2
+              --no-daemon --stacktrace --max-workers=2 "${java_args[@]}"
           else
             # Preserve the established Forge release lifecycle.
             ./gradlew clean check build javadoc verifyReleaseArtifacts writeReleaseChecksums \
-              --no-daemon --stacktrace
+              --no-daemon --stacktrace "${java_args[@]}"
           fi
 
       - name: Stage the immutable release artifact
@@ -455,12 +497,28 @@ jobs:
         with:
           ref: ${{ needs.preflight.outputs.release_sha }}
 
+      - name: Install pinned Java 25 Mavenizer runtime
+        uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5
+        with:
+          distribution: temurin
+          java-version: '25.0.3+9.0.LTS'
+
+      - name: Install pinned Java 8 launcher toolchain
+        uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5
+        with:
+          distribution: temurin
+          java-version: '8.0.502+7'
+
       - name: Install target Java toolchain
         uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5
         with:
           distribution: temurin
           java-version: ${{ needs.preflight.outputs.java_setup_version }}
 
+      - name: Record target Java toolchain path
+        shell: bash
+        run: echo "ORESPAWN_TARGET_JAVA_HOME=$JAVA_HOME" >> "$GITHUB_ENV"
+
       - name: Install separate Java for Gradle
         if: needs.preflight.outputs.install_gradle_java == 'true'
         uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5
@@ -471,6 +529,27 @@ jobs:
       - name: Set up Gradle
         uses: gradle/actions/setup-gradle@9c971963bec38e04b3d30dcc455b5382be2fdbfb # v6
 
+      - name: Resolve explicit Gradle Java installations
+        id: java-paths
+        shell: bash
+        run: |
+          set -euo pipefail
+          candidates=(
+            "$JAVA_HOME_25_X64"
+            "$JAVA_HOME_8_X64"
+            "$ORESPAWN_TARGET_JAVA_HOME"
+            "$JAVA_HOME"
+          )
+          paths=
+          for candidate in "${candidates[@]}"; do
+            test -x "$candidate/bin/java"
+            canonical="$(cd "$candidate" && pwd -P)"
+            if [[ ",$paths," != *",$canonical,"* ]]; then
+              paths="${paths:+$paths,}$canonical"
+            fi
+          done
+          echo "paths=$paths" >> "$GITHUB_OUTPUT"
+
       - name: Download immutable release artifact
         uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8
         with:
@@ -503,7 +582,10 @@ jobs:
           chmod +x ./gradlew
           ./gradlew publishMavenJavaPublicationToReleaseRepository \
             -PpreparedReleaseDir="$RUNNER_TEMP/release-input" \
-            --no-daemon --stacktrace
+            --no-daemon --stacktrace \
+            -Dorg.gradle.java.installations.paths="${{ steps.java-paths.outputs.paths }}" \
+            -Dorg.gradle.java.installations.auto-detect=false \
+            -Dorg.gradle.java.installations.auto-download=false
 
   publish_curseforge:
     name: Publish CurseForge