add Spotless + Maven wrapper (netplex#246)

* add Spotless + Maven wrapper

* apply code formatting

Author: ccudennec-otto

.github/workflows/json-smart-formatting.yml

@@ -0,0 +1,31 @@
+
+name: json smart formatting
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  formatting:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      
+      - name: Set up JDK
+        uses: actions/setup-java@v4
+        with:
+          java-version: 21
+          distribution: 'temurin'
+          cache: 'maven'
+          
+      - name: Check formatting accessors-smart
+        run: cd accessors-smart; ./mvnw spotless:check
+
+      - name: Check formatting json-smart
+        run: cd json-smart; ./mvnw spotless:check
+
+      - name: Check formatting json-smart-action
+        run: cd json-smart-action; ./mvnw spotless:check

.github/workflows/json-smart-unit-tests.yml

@@ -26,10 +26,10 @@ jobs:
           cache: 'maven'
 
       - name: Unit tests accessors-smart
-        run: cd accessors-smart; mvn -B install; mvn -B clean test
+        run: cd accessors-smart; ./mvnw -B install; ./mvnw -B clean test
 
       - name: Unit tests json-smart
-        run: cd json-smart; mvn -B install; mvn -B clean test
+        run: cd json-smart; ./mvnw -B install; ./mvnw -B clean test
 
       - name: Unit tests json-smart-action
-        run: cd json-smart-action; mvn -B install; mvn -B clean test
+        run: cd json-smart-action; ./mvnw -B install; ./mvnw -B clean test

accessors-smart/.mvn/wrapper/maven-wrapper.properties

@@ -0,0 +1,19 @@
+# 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.
+wrapperVersion=3.3.2
+distributionType=only-script
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.9/apache-maven-3.9.9-bin.zip