chore(): add spotlees mvn plugin to pre-commit and format all files

.gitignore

@@ -35,12 +35,6 @@ release.properties
 dependency-reduced-pom.xml
 buildNumber.properties
 .mvn/timing.properties
-# https://github.com/takari/maven-wrapper#usage-without-binary-jar
-.mvn/wrapper/maven-wrapper.jar
-.mvn/wrapper/maven-wrapper.properties
-mvnw
-mvnw.cmd
-
 
 # Eclipse m2e generated files
 # Eclipse Core

.mvn/wrapper/maven-wrapper.properties

@@ -0,0 +1,2 @@
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.9/apache-maven-3.9.9-bin.zip
+wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.3.2/maven-wrapper-3.3.2.jar

.pre-commit-config.yaml

@@ -46,3 +46,12 @@ repos:
         args: [sync]
       - id: vale
         args: [--output=line, --minAlertLevel=error]
+  - repo: local
+    hooks:
+      - id: spotless-check
+        name: Spotless code formatting check
+        entry: ./mvnw spotless:check
+        language: system
+        pass_filenames: false
+        files: \.java$
+        stages: [commit]

.spotless/eclipse-formatter.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<profiles version="13">
+<profile kind="CodeFormatterProfile" name="Google Style" version="13">
+<setting id="org.eclipse.jdt.core.formatter.indent_switchstatements_compare_to_cases" value="true"/>
+<setting id="org.eclipse.jdt.core.formatter.indent_switchstatements_compare_to_switch" value="true"/>
+<setting id="org.eclipse.jdt.core.formatter.tabulation.char" value="space"/>
+<setting id="org.eclipse.jdt.core.formatter.tabulation.size" value="2"/>
+<setting id="org.eclipse.jdt.core.formatter.lineSplit" value="100"/>
+</profile>
+</profiles>