diff --git a/.github/workflows/linux-jni.yaml b/.github/workflows/linux-jni.yaml
index 0bba1a045..4bea999d8 100644
--- a/.github/workflows/linux-jni.yaml
+++ b/.github/workflows/linux-jni.yaml
@@ -3,7 +3,7 @@ name: linux-jni
 on:
   push:
     branches:
-      - linux-jni
+      - jni
     tags:
       - 'v[0-9]+.[0-9]+.[0-9]+*'
   workflow_dispatch:
@@ -33,6 +33,30 @@ jobs:
           ls -lh
           du -h -d1 .
 
+      - name: Build jar
+        shell: bash
+        run: |
+          SHERPA_ONNX_VERSION=v$(grep "SHERPA_ONNX_VERSION" ./CMakeLists.txt  | cut -d " " -f 2  | cut -d '"' -f 2)
+          cd sherpa-onnx/java-api
+          make
+          ls -lh build/
+          cp build/sherpa-onnx.jar ../../sherpa-onnx-$SHERPA_ONNX_VERSION.jar
+          cd ../..
+          ls -lh *.jar
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: release-jni-linux-jar
+          path: ./*.jar
+
+      - name: Release jar
+        if: (github.repository_owner == 'csukuangfj' || github.repository_owner == 'k2-fsa') && github.event_name == 'push' && contains(github.ref, 'refs/tags/')
+        uses: svenstaro/upload-release-action@v2
+        with:
+          file_glob: true
+          overwrite: true
+          file: ./*.jar
+
       - name: Build sherpa-onnx
         uses: addnab/docker-run-action@v3
         with:
@@ -78,6 +102,8 @@ jobs:
 
               ls -lh lib
               ls -lh bin
+              rm -rf ./install/pkgconfig
+              rm -rf ./install/share
 
       - name: Display dependencies of sherpa-onnx for linux
         shell: bash
@@ -99,9 +125,8 @@ jobs:
 
       - uses: actions/upload-artifact@v4
         with:
-          name: release-jni
-          path: install/*
-
+          name: release-jni-linux
+          path: build/install/*
 
       - name: Copy files
         shell: bash
@@ -142,6 +167,7 @@ jobs:
             mkdir -p jni
 
             cp -v ../sherpa-onnx-*.tar.bz2 ./jni
+            cp -v ../*.jar ./jni
 
             git status
             git lfs track "*.bz2"
@@ -159,3 +185,4 @@ jobs:
           file_glob: true
           overwrite: true
           file: sherpa-onnx-*.tar.bz2
+
diff --git a/.github/workflows/macos-jni.yaml b/.github/workflows/macos-jni.yaml
new file mode 100644
index 000000000..57ac69681
--- /dev/null
+++ b/.github/workflows/macos-jni.yaml
@@ -0,0 +1,140 @@
+name: macos-jni
+
+on:
+  push:
+    branches:
+      - jni
+    tags:
+      - 'v[0-9]+.[0-9]+.[0-9]+*'
+
+  workflow_dispatch:
+
+concurrency:
+  group: macos-jni-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  macos_jni:
+    runs-on: ${{ matrix.os }}
+    name: ${{ matrix.arch }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-latest]
+        arch: [arm64, x86_64]
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin' # See 'Supported distributions' for available options
+          java-version: '21'
+
+      - name: ccache
+        uses: hendrikmuhs/ccache-action@v1.2
+        with:
+          key: ${{ matrix.os }}-${{ matrix.arch }}
+
+      - name: Configure CMake
+        shell: bash
+        run: |
+          export CMAKE_CXX_COMPILER_LAUNCHER=ccache
+          export PATH="/usr/lib/ccache:/usr/local/opt/ccache/libexec:$PATH"
+          cmake --version
+
+          mkdir build
+          cd build
+          arch=${{ matrix.arch }}
+
+          cmake \
+            -D BUILD_SHARED_LIBS=ON \
+            -D CMAKE_BUILD_TYPE=Release \
+            -DCMAKE_OSX_ARCHITECTURES=$arch \
+            -DSHERPA_ONNX_ENABLE_JNI=ON \
+            -DCMAKE_INSTALL_PREFIX=./install \
+            ..
+
+      - name: Build sherpa-onnx for macos
+        shell: bash
+        run: |
+          export PATH="/usr/lib/ccache:/usr/local/opt/ccache/libexec:$PATH"
+
+          cd build
+          make -j2
+          make install
+
+          ls -lh lib
+          ls -lh bin
+
+          file ./bin/sherpa-onnx
+
+          rm -rf ./install/pkgconfig
+          rm -rf ./install/share
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: release-jni-macos-${{ matrix.arch }}
+          path: build/install/*
+
+      - name: Copy files
+        shell: bash
+        run: |
+          du -h -d1 .
+          SHERPA_ONNX_VERSION=v$(grep "SHERPA_ONNX_VERSION" ./CMakeLists.txt  | cut -d " " -f 2  | cut -d '"' -f 2)
+
+          arch=${{ matrix.arch }}
+          dst=sherpa-onnx-${SHERPA_ONNX_VERSION}-osx-$arch-jni
+          mkdir -p $dst
+
+          cp -a build/install/bin $dst/
+          cp -a build/install/lib $dst/
+          cp -a build/install/include $dst/
+
+          brew install tree
+
+          tree $dst
+
+          tar cjvf ${dst}.tar.bz2 $dst
+          du -h -d1 .
+
+      - name: Publish to huggingface
+        if: (github.repository_owner == 'csukuangfj' || github.repository_owner == 'k2-fsa') && (github.event_name == 'push' || github.event_name == 'workflow_dispatch')
+        env:
+          HF_TOKEN: ${{ secrets.HF_TOKEN }}
+        uses: nick-fields/retry@v3
+        with:
+          max_attempts: 20
+          timeout_seconds: 200
+          shell: bash
+          command: |
+            git config --global user.email "csukuangfj@gmail.com"
+            git config --global user.name "Fangjun Kuang"
+
+            rm -rf huggingface
+            export GIT_CLONE_PROTECTION_ACTIVE=false
+            GIT_LFS_SKIP_SMUDGE=1 git clone https://huggingface.co/csukuangfj/sherpa-onnx-libs huggingface
+
+            cd huggingface
+            mkdir -p jni
+
+            cp -v ../sherpa-onnx-*.tar.bz2 ./jni
+
+            git status
+            git lfs track "*.bz2"
+
+            git add .
+
+            git commit -m "add more files"
+
+            git push https://csukuangfj:$HF_TOKEN@huggingface.co/csukuangfj/sherpa-onnx-libs main
+
+      - name: Release pre-compiled binaries and libs for linux x64
+        if: (github.repository_owner == 'csukuangfj' || github.repository_owner == 'k2-fsa') && github.event_name == 'push' && contains(github.ref, 'refs/tags/')
+        uses: svenstaro/upload-release-action@v2
+        with:
+          file_glob: true
+          overwrite: true
+          file: sherpa-onnx-*.tar.bz2
diff --git a/.github/workflows/windows-x64-jni.yaml b/.github/workflows/windows-x64-jni.yaml
new file mode 100644
index 000000000..64164332d
--- /dev/null
+++ b/.github/workflows/windows-x64-jni.yaml
@@ -0,0 +1,110 @@
+name: windows-x64-jni
+
+on:
+  push:
+    branches:
+      - jni
+    tags:
+      - 'v[0-9]+.[0-9]+.[0-9]+*'
+
+  workflow_dispatch:
+
+concurrency:
+  group: windows-x64-jni-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  windows_x64_jni:
+    name: windows x64 jni
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [windows-latest]
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin' # See 'Supported distributions' for available options
+          java-version: '21'
+
+      - name: Configure CMake
+        shell: bash
+        run: |
+          mkdir build
+          cd build
+          cmake -A x64 -D CMAKE_BUILD_TYPE=Release -D BUILD_SHARED_LIBS=ON -DSHERPA_ONNX_ENABLE_JNI=ON -DCMAKE_INSTALL_PREFIX=./install ..
+
+      - name: Build sherpa-onnx for windows
+        shell: bash
+        run: |
+          cd build
+          cmake --build . --config Release -- -m:2
+          cmake --build . --config Release --target install -- -m:2
+
+          ls -lh ./bin/Release/sherpa-onnx.exe
+          rm -rf install/share
+          rm -rf install/lib/pkgconfig
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: release-jni-windows-x64
+          path: build/install/*
+
+      - name: Copy files
+        shell: bash
+        run: |
+          SHERPA_ONNX_VERSION=v$(grep "SHERPA_ONNX_VERSION" ./CMakeLists.txt  | cut -d " " -f 2  | cut -d '"' -f 2)
+
+          dst=sherpa-onnx-${SHERPA_ONNX_VERSION}-win-x64-jni
+          mkdir -p $dst
+
+          cp -a build/install/bin $dst/
+          cp -a build/install/lib $dst/
+          cp -a build/install/include $dst/
+
+          tar cjvf ${dst}.tar.bz2 $dst
+
+      # https://huggingface.co/docs/hub/spaces-github-actions
+      - name: Publish to huggingface
+        if: (github.repository_owner == 'csukuangfj' || github.repository_owner == 'k2-fsa') && (github.event_name == 'push' || github.event_name == 'workflow_dispatch')
+        env:
+          HF_TOKEN: ${{ secrets.HF_TOKEN }}
+        uses: nick-fields/retry@v3
+        with:
+          max_attempts: 20
+          timeout_seconds: 200
+          shell: bash
+          command: |
+            git config --global user.email "csukuangfj@gmail.com"
+            git config --global user.name "Fangjun Kuang"
+
+            rm -rf huggingface
+            export GIT_CLONE_PROTECTION_ACTIVE=false
+            GIT_LFS_SKIP_SMUDGE=1 git clone https://huggingface.co/csukuangfj/sherpa-onnx-libs huggingface
+
+            cd huggingface
+            mkdir -p jni
+
+            cp -v ../sherpa-onnx-*.tar.bz2 ./jni
+
+            git status
+            git lfs track "*.bz2"
+
+            git add .
+
+            git commit -m "upload sherpa-onnx-${SHERPA_ONNX_VERSION}"
+
+            git push https://csukuangfj:$HF_TOKEN@huggingface.co/csukuangfj/sherpa-onnx-libs main
+
+      - name: Release pre-compiled binaries and libs for Windows x64
+        if: (github.repository_owner == 'csukuangfj' || github.repository_owner == 'k2-fsa') && github.event_name == 'push' && contains(github.ref, 'refs/tags/')
+        uses: svenstaro/upload-release-action@v2
+        with:
+          file_glob: true
+          overwrite: true
+          file: sherpa-onnx-*.tar.bz2
diff --git a/sherpa-onnx/jni/offline-tts.cc b/sherpa-onnx/jni/offline-tts.cc
index d0f216e2e..43a93e0e0 100644
--- a/sherpa-onnx/jni/offline-tts.cc
+++ b/sherpa-onnx/jni/offline-tts.cc
@@ -187,8 +187,9 @@ Java_com_k2fsa_sherpa_onnx_OfflineTts_generateWithCallbackImpl(
   SHERPA_ONNX_LOGE("string is: %s", p_text);
 
   std::function<int32_t(const float *, int32_t, float)> callback_wrapper =
-      [env, callback](const float *samples, int32_t n, float /*progress*/) {
-        jclass cls = env->GetObjectClass(callback);
+      [env, callback](const float *samples, int32_t n,
+                      float /*progress*/) -> int {
+    jclass cls = env->GetObjectClass(callback);
 
 #if 0
         // this block is for debugging only
@@ -207,22 +208,20 @@ Java_com_k2fsa_sherpa_onnx_OfflineTts_generateWithCallbackImpl(
         env->ReleaseStringUTFChars(classString, className);
 #endif
 
-        jmethodID mid =
-            env->GetMethodID(cls, "invoke", "([F)Ljava/lang/Integer;");
-        if (mid == nullptr) {
-          SHERPA_ONNX_LOGE("Failed to get the callback. Ignore it.");
-          return 1;
-        }
-
-        jfloatArray samples_arr = env->NewFloatArray(n);
-        env->SetFloatArrayRegion(samples_arr, 0, n, samples);
-
-        jobject should_continue =
-            env->CallObjectMethod(callback, mid, samples_arr);
-        jclass jklass = env->GetObjectClass(should_continue);
-        jmethodID int_value_mid = env->GetMethodID(jklass, "intValue", "()I");
-        return env->CallIntMethod(should_continue, int_value_mid);
-      };
+    jmethodID mid = env->GetMethodID(cls, "invoke", "([F)Ljava/lang/Integer;");
+    if (mid == nullptr) {
+      SHERPA_ONNX_LOGE("Failed to get the callback. Ignore it.");
+      return 1;
+    }
+
+    jfloatArray samples_arr = env->NewFloatArray(n);
+    env->SetFloatArrayRegion(samples_arr, 0, n, samples);
+
+    jobject should_continue = env->CallObjectMethod(callback, mid, samples_arr);
+    jclass jklass = env->GetObjectClass(should_continue);
+    jmethodID int_value_mid = env->GetMethodID(jklass, "intValue", "()I");
+    return env->CallIntMethod(should_continue, int_value_mid);
+  };
 
   auto audio = reinterpret_cast<sherpa_onnx::OfflineTts *>(ptr)->Generate(
       p_text, sid, speed, callback_wrapper);