GitHub actions build (OpenIdentityPlatform#17)

* github action build

* GitHub actions build status

.github/workflows/maven.yml

@@ -0,0 +1,34 @@
+# This workflow will build a Java project with Maven
+# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-maven
+
+name: Build
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        java: [ '8']
+        os: [ 'ubuntu-latest', 'macos-latest', 'windows-latest' ]
+    steps:
+    - uses: actions/checkout@v2
+    - name: Java ${{ matrix.Java }} (${{ matrix.os }})
+      uses: actions/setup-java@v2
+      with:
+        java-version: ${{ matrix.java }}
+        distribution: 'adopt'
+    - name: Cache Maven packages
+      uses: actions/cache@v2
+      with:
+         path: ~/.m2
+         key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
+         restore-keys: ${{ runner.os }}-m2
+    - name: Build with Maven
+      run: mvn --batch-mode  --update-snapshots package --file pom.xml

README.md

@@ -1,6 +1,6 @@
 ## <img alt="OpenIG Logo" src="https://github.com/OpenIdentityPlatform/OpenIG/raw/master/logo.png" width="300"/>
 [![Latest release](https://img.shields.io/github/release/OpenIdentityPlatform/OpenIG.svg)](https://github.com/OpenIdentityPlatform/OpenIG/releases)
-[![Build Status](https://travis-ci.com/OpenIdentityPlatform/OpenIG.svg)](https://travis-ci.com/OpenIdentityPlatform/OpenIG)
+[![Build](https://github.com/OpenIdentityPlatform/OpenIG/actions/workflows/maven.yml/badge.svg)](https://github.com/OpenIdentityPlatform/OpenIG/actions/workflows/maven.yml)
 [![Issues](https://img.shields.io/github/issues/OpenIdentityPlatform/OpenIG.svg)](https://github.com/OpenIdentityPlatform/OpenIG/issues)
 [![Last commit](https://img.shields.io/github/last-commit/OpenIdentityPlatform/OpenIG.svg)](https://github.com/OpenIdentityPlatform/OpenIG/commits/master)
 [![License](https://img.shields.io/badge/license-CDDL-blue.svg)](https://github.com/OpenIdentityPlatform/OpenIG/blob/master/LICENSE.md)