Added Makefile for mvn and updated the github workflow

.github/workflows/release.yml

@@ -0,0 +1,48 @@
+# This GitHub action can publish assets for release when a tag is created.
+# Currently, it's setup to run on any tag that matches the pattern "v*" (ie. v0.1.0).
+
+name: release
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2.4.0
+
+    - name: Set up JDK 1.8
+      uses: actions/setup-java@v1
+      with:
+        java-version: 1.8
+        server-id: ossrh
+        server-username: MAVEN_USERNAME
+        server-password: MAVEN_PASSWORD
+
+    - name: Install Maven
+      run: |
+        curl -sL https://www-eu.apache.org/dist/maven/maven-3/3.6.3/binaries/apache-maven-3.6.3-bin.zip -o maven.zip
+        apt-get update
+        apt-get -y install unzip
+          unzip -d /usr/share maven.zip
+          rm maven.zip
+          ln -s /usr/share/apache-maven-3.6.3/bin/mvn /usr/bin/mvn
+          echo "M2_HOME=/usr/share/apache-maven-3.6.3" | tee -a /etc/environment
+      shell: sh  
+
+    - name: Run tests
+      run: make test    
+      shell: sh
+
+    - name: Build and Publish package
+      run: make deploy
+      env:
+        MAVEN_USERNAME: ${{ secrets.OSSRH_USERNAME }}
+        MAVEN_PASSWORD: ${{ secrets.OSSRH_TOKEN }}
+      shell: sh
+

.github/workflows/verify.yml

@@ -0,0 +1,35 @@
+name: verify
+
+on:
+  pull_request:
+    branches: [ '*' ]
+  push:
+    branches: [ master ]
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2.4.0
+
+    - name: Set up JDK 1.8
+      uses: actions/setup-java@v1
+      with:
+        java-version: 1.8
+
+    - name: Install Maven
+      run: |
+        curl -sL https://www-eu.apache.org/dist/maven/maven-3/3.6.3/binaries/apache-maven-3.6.3-bin.zip -o maven.zip
+        apt-get update
+        apt-get -y install unzip
+        unzip -d /usr/share maven.zip
+        rm maven.zip
+        ln -s /usr/share/apache-maven-3.6.3/bin/mvn /usr/bin/mvn
+        echo "M2_HOME=/usr/share/apache-maven-3.6.3" | tee -a /etc/environment
+      shell: sh
+
+    - name: Run test
+      run: make test
+      shell: sh

Makefile

@@ -0,0 +1,28 @@
+SHELL=bash
+
+# Check that the required version of make is being used
+REQ_MAKE_VER:=3.82
+ifneq ($(REQ_MAKE_VER),$(firstword $(sort $(MAKE_VERSION) $(REQ_MAKE_VER))))
+   $(error The version of MAKE $(REQ_MAKE_VER) or higher is required; you are running $(MAKE_VERSION))
+endif
+
+.ONESHELL:
+
+all: package test
+
+.PHONY: clean
+clean:
+	mvn clean --file pom.xml
+
+.PHONY: test
+test: clean
+	mvn test --file pom.xml
+
+.PHONY: package
+package: clean
+	mvn package --file pom.xml
+
+.PHONY: deploy
+deploy: package
+	mvn --batch-mode deploy --file pom.xml
+