Feat/use java 23 (#132)

* use java 23 and markdown javadoc

Author: osiegmar

.github/workflows/build.yml

@@ -21,7 +21,7 @@ jobs:
       uses: actions/setup-java@v4
       with:
         distribution: 'temurin'
-        java-version: '21'
+        java-version: '23'
     - uses: gradle/actions/setup-gradle@v4
     - name: Build with Gradle
       run: ./gradlew build

.github/workflows/codeql-analysis.yml

@@ -37,7 +37,7 @@ jobs:
       uses: actions/setup-java@v4
       with:
         distribution: 'temurin'
-        java-version: '21'
+        java-version: '23'
 
     - name: Initialize CodeQL
       uses: github/codeql-action/init@v3

.github/workflows/dependency-submission.yml

@@ -20,6 +20,6 @@ jobs:
         uses: actions/setup-java@v4
         with:
           distribution: 'temurin'
-          java-version: '21'
+          java-version: '23'
       - name: Generate and submit dependency graph
         uses: gradle/actions/dependency-submission@v4

.github/workflows/release.yml

@@ -20,7 +20,7 @@ jobs:
         uses: actions/setup-java@v4
         with:
           distribution: 'temurin'
-          java-version: '21'
+          java-version: '23'
       - name: Setup Gradle
         uses: gradle/actions/setup-gradle@d156388eb19639ec20ade50009f3d199ce1e2808 # v4.1.0
       - name: Publish package

buildSrc/build.gradle.kts

@@ -9,3 +9,8 @@ repositories {
 dependencies {
     implementation(libs.spotbugs)
 }
+
+// Prevent build warning: "Kotlin does not yet support 23 JDK target, falling back to Kotlin JVM_22 JVM target"
+kotlin {
+    jvmToolchain(21)
+}

config/checkstyle/checkstyle.xml

@@ -209,14 +209,22 @@
         <module name="JavadocContentLocation"/>
         <module name="JavadocMethod"/>
         <!--<module name="JavadocParagraph"/>-->
+        <!--
         <module name="JavadocStyle"/>
+        -->
         <module name="JavadocTagContinuationIndentation"/>
         <module name="JavadocType"/>
+        <!--
         <module name="JavadocVariable">
             <property name="scope" value="public"/>
         </module>
+        -->
+        <!--
         <module name="MissingJavadocMethod"/>
+        -->
+        <!--
         <module name="MissingJavadocType"/>
+        -->
         <module name="NonEmptyAtclauseDescription"/>
         <!--<module name="RequireEmptyLineBeforeBlockTagGroup"/>-->
         <module name="SingleLineJavadoc"/>

docs/src/content/docs/guides/Examples/index.md

@@ -5,6 +5,6 @@ title: Overview
 This section provides a variety of examples to help you get started with FastCSV.
 
 While FastCSV is compatible with Java 11 and later, the examples in this section use
-Java 21 to demonstrate modern Java features and syntax for the sake of brevity.
+Java 23 to demonstrate modern Java features and syntax for the sake of brevity.
 
 You find all source code examples in the [FastCSV GitHub repository](https://github.com/osiegmar/FastCSV/tree/main/example/src/main/java/example).

docs/src/content/docs/guides/contribution.mdx

@@ -18,7 +18,7 @@ This will help to avoid wasted effort and ensure that your contribution is in li
     - Understand and respect the [goals of the project](/architecture/goals/)
     - Get familiar with the [architecture](/architecture/architecture/)
     - Accept the [MIT license](https://opensource.org/license/mit) that will also apply to your contributions
-    - Have Java 21 on your path
+    - Have Java 23 on your path
 
 1. Fork the [repository](https://github.com/osiegmar/FastCSV) and clone it to your local machine
 

example/src/main/java/example/ExampleCsvCompression.java

@@ -16,9 +16,7 @@
 import de.siegmar.fastcsv.reader.CsvReader;
 import de.siegmar.fastcsv.writer.CsvWriter;
 
-/**
- * Example for writing and reading compressed CSV data.
- */
+/// Example for writing and reading compressed CSV data.
 public class ExampleCsvCompression {
 
     public static void main(final String[] args) throws IOException {

example/src/main/java/example/ExampleCsvReaderMapping.java

@@ -6,9 +6,7 @@
 import de.siegmar.fastcsv.reader.CsvReader;
 import de.siegmar.fastcsv.reader.NamedCsvRecord;
 
-/**
- * Example for reading CSV data with a mapping function.
- */
+/// Example for reading CSV data with a mapping function.
 public class ExampleCsvReaderMapping {
 
     private static final String DATA = """