Update README for new versions

Author: dsyer

README.md

@@ -32,12 +32,43 @@ means adding it to the Spring Boot plugin declaration:
 </plugin>
 ```
 
-and in Gradle, you can use the older `apply` style declaration:
+and in Gradle, you need to add the `thin-launcher` plugin and (preferably) a `maven-publish` plugin with an explicit publication definition. You can use the newer `id` style declaration:
+
+```groovy
+plugins {
+	id 'org.springframework.boot' version '3.0.1'
+	id 'io.spring.dependency-management' version '1.1.0'
+	id 'java'
+	id 'maven-publish'
+	id 'org.springframework.boot.experimental.thin-launcher' version '1.0.29.RELEASE'
+}
+
+group = 'com.example'
+version = '0.0.1-SNAPSHOT'
+sourceCompatibility = '17'
+
+repositories {
+	mavenLocal()
+	mavenCentral()
+	maven { url "https://repo.spring.io/snapshot" }
+	maven { url "https://repo.spring.io/milestone" }
+}
+
+publishing {
+    publications {
+        maven(MavenPublication) {
+            from components.java
+        }
+    }
+}
+```
+
+or you can use the older `apply` style declaration:
 
 ```groovy
 buildscript {
 	ext {
-		springBootVersion = '2.2.4.RELEASE'
+		springBootVersion = '2.7.6'
 		wrapperVersion = '1.0.29.RELEASE'
 	}
 	repositories {
@@ -61,36 +92,7 @@ publishing {
 }
 ```
 
-Or you can use the newer `id` style declaration:
-
-```groovy
-plugins {
-	id 'org.springframework.boot' version '2.2.4.RELEASE'
-	id 'io.spring.dependency-management' version '1.0.9.RELEASE'
-	id 'java'
-	id 'maven-publish'
-	id 'org.springframework.boot.experimental.thin-launcher' version '1.0.29.RELEASE'
-}
-
-group = 'com.example'
-version = '0.0.1-SNAPSHOT'
-sourceCompatibility = '1.8'
-
-repositories {
-	mavenLocal()
-	mavenCentral()
-	maven { url "https://repo.spring.io/snapshot" }
-	maven { url "https://repo.spring.io/milestone" }
-}
-
-publishing {
-    publications {
-        maven(MavenPublication) {
-            from components.java
-        }
-    }
-}
-```
+The publication named "maven" is responsible for creating a `pom.xml` for your application.
 
 For Spring Boot 2.x snapshot versions (or older releases) you also need a `settings.gradle` with the repository configuration for the plugin. e.g. (as generated by https://start.spring.io):
 
@@ -259,21 +261,7 @@ configuration flag in the plugin (or `-Dthin.compute=false` on the command line)
 
 ### Gradle
 
-The same features are available to Gradle users by adding a plugin:
-
-```groovy
-buildscript {
-    ...
-    dependencies {
-        classpath("org.springframework.boot.experimental:spring-boot-thin-gradle-plugin:${wrapperVersion}")
-        ...
-    }
-}
-
-...
-apply plugin: 'org.springframework.boot.experimental.thin-launcher'
-
-```
+The same features are available to Gradle users by adding the thin jar plugin (as described above).
 
 The plugin creates 2 tasks for every jar task in the project, one that
 reolves the dependencies, and one that copies the jar into the same

gradle-plugin/src/main/java/org/springframework/boot/experimental/gradle/PomTask.java

@@ -20,10 +20,6 @@
 import java.util.ArrayList;
 import java.util.List;
 
-import groovy.util.Node;
-
-import io.spring.gradle.dependencymanagement.dsl.DependencyManagementExtension;
-import io.spring.gradle.dependencymanagement.maven.PomDependencyManagementConfigurer;
 import org.gradle.api.Action;
 import org.gradle.api.DefaultTask;
 import org.gradle.api.Project;
@@ -32,14 +28,17 @@
 import org.gradle.api.artifacts.repositories.ArtifactRepository;
 import org.gradle.api.artifacts.repositories.MavenArtifactRepository;
 import org.gradle.api.plugins.Convention;
-import org.gradle.api.plugins.MavenPluginConvention;
 import org.gradle.api.publish.maven.tasks.GenerateMavenPom;
 import org.gradle.api.tasks.OutputDirectory;
 import org.gradle.api.tasks.TaskAction;
 import org.gradle.api.tasks.TaskCollection;
 import org.gradle.api.tasks.TaskExecutionException;
 import org.springframework.util.ClassUtils;
 
+import groovy.util.Node;
+import io.spring.gradle.dependencymanagement.dsl.DependencyManagementExtension;
+import io.spring.gradle.dependencymanagement.maven.PomDependencyManagementConfigurer;
+
 /**
  * Task to generate a pom file including all runtime dependencies.
  *