Add maven POM via gradle publish

Done with https://www.baeldung.com/gradle-build-to-maven-pom

build.gradle

@@ -9,6 +9,8 @@ plugins {
     id 'idea'
 }
 
+apply plugin: 'maven-publish'
+
 repositories {
     mavenLocal()
     maven {
@@ -21,7 +23,7 @@ version = '0.0.1-SNAPSHOT'
 description = 'last-login-event-listener'
 
 ext {
-    keycloakVersion = "24.0.2"
+    keycloakVersion = "23.0.6"
 }
 
 
@@ -41,3 +43,18 @@ java {
 tasks.withType(JavaCompile).configureEach {
     options.encoding = 'UTF-8'
 }
+
+publishing {
+    publications {
+        customLibrary(MavenPublication) {
+            from components.java
+        }
+    }
+
+    repositories {
+        maven {
+            name = 'keycloak-last-login-event-listener'
+            url = layout.buildDirectory.dir("repo")
+        }
+    }
+}

pom.xml

@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+  <!-- This module was also published with a richer model, Gradle metadata,  -->
+  <!-- which should be used instead. Do not delete the following line which  -->
+  <!-- is to indicate to Gradle or any Gradle module metadata file consumer  -->
+  <!-- that they should prefer consuming it instead. -->
+  <!-- do_not_remove: published-with-gradle-metadata -->
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>de.scimeda.keycloak</groupId>
+  <artifactId>last-login-event-listener</artifactId>
+  <version>0.0.1-SNAPSHOT</version>
+  <dependencies>
+    <dependency>
+      <groupId>org.keycloak</groupId>
+      <artifactId>keycloak-core</artifactId>
+      <version>23.0.6</version>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.keycloak</groupId>
+      <artifactId>keycloak-server-spi</artifactId>
+      <version>23.0.6</version>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.keycloak</groupId>
+      <artifactId>keycloak-server-spi-private</artifactId>
+      <version>23.0.6</version>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.keycloak</groupId>
+      <artifactId>keycloak-services</artifactId>
+      <version>23.0.6</version>
+      <scope>provided</scope>
+    </dependency>
+  </dependencies>
+</project>