added 5 jvm flag suggestions

.github/workflows/build-test-jvmFlags.yml

@@ -0,0 +1,108 @@
+name: Build, Test and JVM Flags
+on:
+  push:
+  pull_request:
+jobs:
+  build:
+    runs-on: ubuntu-22.04
+    strategy:
+      fail-fast: false
+      matrix:
+        java-version: [ 22 ]
+        flags:
+          - category: "Insert Here"
+            flag: -XX:CompilerThreshold=1000
+            description: "Optimizes frequently used methods by lowering the compilation threshold, improving performance of core routing operations"
+
+          - category: "Insert Here"
+            flag: -XX:+UseCompressedOops
+            description: "enables compressed ordinary object pointers"
+
+          - category: "Optimisation du mémoire et performance"
+            flag: -XX:+OptimizeFill
+            description: "Optimise le remplissage de la mémoire inutilisée dans les objets."
+
+          - category: "Insert Here"
+            flag: -XX:+UseZGC
+            description: "enables the Z Garbage Collector"
+
+          - category: "Insert Here"
+            flag: -XX:MaxInlineLevel=<value>
+            description: "sets the maximum depth for method inlining by the JIT compiler."
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-java@v3
+        with:
+          java-version: ${{ matrix.java-version }}
+          distribution: temurin
+      - name: Cache Maven artifacts
+        uses: actions/cache@v3
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+          restore-keys: |
+            ${{ runner.os }}-maven-
+      - name: Cache node
+        uses: actions/cache@v3
+        with:
+          path: web-bundle/node
+          key: ${{ runner.os }}-node-${{ hashFiles('**/pom.xml') }}
+          restore-keys: |
+            ${{ runner.os}}-node-
+      - name: Cache node_modules
+        uses: actions/cache@v3
+        with:
+          path: web-bundle/node_modules
+          key: ${{ runner.os }}-node-${{ hashFiles('**/pom.xml', '**/package.json') }}
+          restore-keys: |
+            ${{ runner.os}}-node_modules-
+      - name: Running JVM Flag ${{matrix.flags.flag}}
+        run: |
+          unset MAVEN_OPTS
+          echo "Category: ${{matrix.flags.category}}"
+          echo "JVM Flag: ${{matrix.flags.flag}}"
+          echo "Description: ${{matrix.flags.description}}"
+          export MAVEN_OPTS="${{matrix.flags.flag}}"
+
+      - name: Build ${{ matrix.java-version }}
+        run: mvn -B clean verify
+
+      - name: Get JaCoCo Coverage
+        id: COVERAGE
+        run: |
+          coverage1=$(python3 config/coverage.py core/target/site/jacoco/jacoco.csv) 
+          echo "COVERAGE1=$coverage1" >> $GITHUB_ENV
+          coverage2=$(python3 config/coverage.py reader-gtfs/target/site/jacoco/jacoco.csv) 
+          echo "COVERAGE2=$coverage2" >> $GITHUB_ENV
+          coverage3=$(python3 config/coverage.py web/target/site/jacoco/jacoco.csv) 
+          echo "COVERAGE3=$coverage3" >> $GITHUB_ENV
+          coverage4=$(python3 config/coverage.py web-api/target/site/jacoco/jacoco.csv) 
+          echo "COVERAGE4=$coverage4" >> $GITHUB_ENV
+          coverage5=$(python3 config/coverage.py navigation/target/site/jacoco/jacoco.csv) 
+          echo "COVERAGE5=$coverage5" >> $GITHUB_ENV
+          coverage6=$(python3 config/coverage.py client-hc/target/site/jacoco/jacoco.csv) 
+          echo "COVERAGE6=$coverage6" >> $GITHUB_ENV
+      - name: Fail if coverage has not improved.
+        run: |
+          threshold1=83.75
+          threshold2=46.63
+          threshold3=20.45
+          threshold4=37.53
+          threshold5=81.89
+          threshold6=52.88
+          if (( $(echo "$COVERAGE1 - $threshold1 <= 0.1" | bc -l) )); then
+            echo "New coverage for the module core - $COVERAGE1%. Coverage is improved!"
+          elif (( $(echo "$COVERAGE2 - $threshold2 <= 0.1" | bc -l) )); then
+            echo "New coverage for the module reader-gtfs - $COVERAGE2%. Coverage is improved!"
+          elif (( $(echo "$COVERAGE3 - $threshold3 <= 0.1" | bc -l) )); then
+            echo "New coverage for module web - $COVERAGE3%. Coverage is improved!"
+          elif (( $(echo "$COVERAGE4 - $threshold4 <= 0.1" | bc -l) )); then
+            echo "New coverage for module web-api - $COVERAGE4%. Coverage is improved!"
+          elif (( $(echo "$COVERAGE5 - $threshold5 <= 0.1" | bc -l) )); then
+            echo "New coverage for module navigation - $COVERAGE5%. Coverage is improved!"
+          elif (( $(echo "$COVERAGE6 - $threshold6 <= 0.1" | bc -l) )); then
+            echo "New coverage for module client-hc - $COVERAGE6%. Coverage is improved!"
+          else
+            echo "Coverage is not improved."
+            exit 1
+          fi

.github/workflows/jvmFlagsOriginal.yml

@@ -0,0 +1,96 @@
+name: JVM Flags
+
+on: 
+  push:
+  pull_request:
+
+jobs:
+
+  flag_1:
+    runs-on: ubuntu-latest
+    steps:
+      # clones the repo at job start
+      - uses: actions/checkout@v3    
+      # set-up Java 22 for build
+      - uses: actions/setup-java@v3
+        with:
+          java-version: '22'
+          distribution: 'temurin'
+      - name: test flag 1
+      # `|` sequentially runs commands on multiple lines
+      # `unset MAVEN_OPTS` removes previous flags
+      # `echo` prints
+      # `export` makes `MAVEN_OPTS` available to `clean` & `verify`
+      # `MAVEN_OPTS = JVM flag` sets the flag for each job
+      # `clean` removes previously compiled files
+      # `verify` checks build is correct
+        run: |
+          unset MAVEN_OPTS
+          echo 'JVM Flag 1: -XX:+UseCompressedOops'
+          echo 'Randomly choosen from the server side article'
+          export MAVEN_OPTS='-XX:+UseCompressedOops'
+          mvn clean verify
+
+  flag_2:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3                                         
+      - uses: actions/setup-java@v3                                       
+        with:
+          java-version: '22'
+          distribution: 'temurin'
+      - name: test flag 2
+        run: |    
+          unset MAVEN_OPTS
+          echo 'JVM Flag 2: -XX:+UseZGC'
+          echo 'Randomly choosen from the server side article'
+          export MAVEN_OPTS='-XX:+UseZGC'
+          mvn clean verify
+
+  flag_3:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3                                         
+      - uses: actions/setup-java@v3                                       
+        with:
+          java-version: '22'
+          distribution: 'temurin'
+      - name: test flag 3
+        run: | 
+          unset MAVEN_OPTS
+          echo 'JVM Flag 3: '
+          echo 'Randomly choosen from the server side article'
+          export MAVEN_OPTS=''
+          mvn clean verify
+
+  flag_4:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3                                         
+      - uses: actions/setup-java@v3                                       
+        with:
+          java-version: '22'
+          distribution: 'temurin'
+      - name: test flag 4
+        run: |       
+          unset MAVEN_OPTS
+          echo 'JVM Flag 4: '
+          echo 'Randomly choosen from the server side article'
+          export MAVEN_OPTS=''
+          mvn clean verify
+
+  flag_5:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3                                         
+      - uses: actions/setup-java@v3                                       
+        with:
+          java-version: '22'
+          distribution: 'temurin'
+      - name: test flag 5
+        run: |       
+          unset MAVEN_OPTS
+          echo 'JVM Flag 5: '
+          echo 'Randomly choosen from the server side article'
+          export MAVEN_OPTS=''
+          mvn clean verify

.lolcommits/config.yml

@@ -0,0 +1,3 @@
+Capture:capture:
+  delay: 2
+  device: "FaceTime HD Camera"

README.md

@@ -1,5 +1,7 @@
 # GraphHopper Routing Engine
 
+
+
 ![Build Status](https://github.com/graphhopper/graphhopper/actions/workflows/build.yml/badge.svg?branch=master)
 
 GraphHopper is a fast and memory-efficient routing engine released under Apache License 2.0.

checkstyle/checkstyle.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+<!DOCTYPE module PUBLIC "-//Checkstyle//DTD Checkstyle Configuration 1.3//EN"
+    "https://checkstyle.org/dtds/configuration_1_3.dtd">
+<module name="Checker">
+    <!-- Flags spécifiques pour GraphHopper -->
+    <module name="TreeWalker">
+        <!-- Vérification des conventions de nommage -->
+        <module name="MethodName">
+            <property name="format" value="^[a-z][a-zA-Z0-9]*$"/>
+        </module>
+        <!-- Flag pour la documentation -->
+        <module name="JavadocMethod">
+            <property name="scope" value="public"/>
+            <property name="allowMissingParamTags" value="false"/>
+            <property name="allowMissingReturnTag" value="false"/>
+        </module>
+    </module>
+</module>

core/pom.xml

@@ -124,6 +124,12 @@
     <build>
         <pluginManagement>
             <plugins>
+                <!-- new -->
+                <plugin>
+                    <groupId>org.pitest</groupId>
+                    <artifactId>pitest-maven</artifactId>
+                    <version>LATEST</version>
+                </plugin>
                 <!-- create jar with test classes to be reused in other projects -->
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>