diff --git a/.github/workflows/native_build_mxnet_osx.yml b/.github/workflows/native_build_mxnet_osx.yml
index aa85f3f04424..32695bbf4e21 100644
--- a/.github/workflows/native_build_mxnet_osx.yml
+++ b/.github/workflows/native_build_mxnet_osx.yml
@@ -1,4 +1,4 @@
-name: Native Build MXNet OSX
+name: Native Build MXNet OSX and Upload jar
 
 on: [push]
 #on:
@@ -16,17 +16,12 @@ jobs:
       - name: Install Dependencies
         run: |
           brew install nasm automake ninja libtool
-      - name: Build
-        run: |
-          git --version
-          clang --version
-          CMAKE_STATICBUILD=1 ./tools/staticbuild/build.sh cpu
-      - name: Upload libmxnet.dylib
-        uses: actions/upload-artifact@v2
-        with:
-          name: libmxnet.dylib
-          path: build/libmxnet.dylib
 
+#      - name: Build
+#        run: |
+#          git --version
+#          clang --version
+#          CMAKE_STATICBUILD=1 ./tools/staticbuild/build.sh cpu
       - name: Set up JDK 8
         uses: actions/setup-java@v2
         with:
@@ -37,8 +32,8 @@ jobs:
         with:
           working-directory: ./java-package
       - name: jar mxnet library
-        with:
-          working-directory: ./java-package
+        working-directory: ./java-package
         run: |
+          pwd
           ./gradlew :native:jar
-          ls native/build/libs
+#          ls native/build/libs
diff --git a/ci/docker_attach.sh b/ci/docker_attach.sh
new file mode 100644
index 000000000000..497f8ef6876e
--- /dev/null
+++ b/ci/docker_attach.sh
@@ -0,0 +1,44 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+docker \
+        run \
+        -it \
+        --cap-add \
+        SYS_PTRACE \
+        --rm \
+        --shm-size=500m \
+        -v \
+        /home/ec2-user/work/incubator-mxnet:/work/mxnet \
+        -v \
+        /home/ec2-user/work/incubator-mxnet/build:/work/build \
+        -v \
+        /root/.ccache:/work/ccache \
+        -u \
+        0:0 \
+        -e \
+        CCACHE_MAXSIZE=500G \
+        -e \
+        CCACHE_TEMPDIR=/tmp/ccache \
+        -e \
+        CCACHE_DIR=/work/ccache \
+        -e \
+        CCACHE_LOGFILE=/tmp/ccache.log \
+        -e \
+        RELEASE_BUILD=false \
+        mxnetci/build.ubuntu_cpu:latest \
+        bash
\ No newline at end of file
diff --git a/docker/dev/docker_run.sh b/docker/dev/docker_run.sh
new file mode 100644
index 000000000000..80f36b559426
--- /dev/null
+++ b/docker/dev/docker_run.sh
@@ -0,0 +1,44 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+docker \
+        run \
+        --cap-add \
+        SYS_PTRACE \
+        --rm \
+        --shm-size=500m \
+        -v \
+        /home/ec2-user/work/upstream/incubator-mxnet:/work/mxnet \
+        -v \
+        /home/ec2-user/work/upstream/incubator-mxnet/build:/work/build \
+        -v \
+        /root/.ccache:/work/ccache \
+        -u \
+        0:0 \
+        -e \
+        CCACHE_MAXSIZE=500G \
+        -e \
+        CCACHE_TEMPDIR=/tmp/ccache \
+        -e \
+        CCACHE_DIR=/work/ccache \
+        -e \
+        CCACHE_LOGFILE=/tmp/ccache.log \
+        -e \
+        RELEASE_BUILD=false \
+        mxnetci/build.ubuntu_cpu:latest \
+        /work/mxnet/ci/docker/runtime_functions.sh \
+        build_ubuntu_cpu
\ No newline at end of file
diff --git a/java-package/scripts/setup_gradle_ubuntu.sh b/java-package/scripts/setup_gradle_ubuntu.sh
new file mode 100644
index 000000000000..8a404829c0aa
--- /dev/null
+++ b/java-package/scripts/setup_gradle_ubuntu.sh
@@ -0,0 +1,5 @@
+install_gradle() {
+    add-apt-repository ppa:cwchien/gradle
+    apt-get update -y
+    apt-get install gradle -y
+}