Switch to DocumentFormattingService interface

Upgrade to IntelliJ IDEA 2022.3.2 and change the formatter to be an
implementation of `DocumentFormattingService`.

This significantly simplifies the plugin and hopefully removes some of
the compatibility issues that have happened in the past.

Closes gh-359

README.adoc

@@ -224,7 +224,7 @@ or use the https://repo.spring.io/javaformat-eclipse-update-site/[update site].
 
 === IntelliJ IDEA
 The IntelliJ IDEA plugin provides custom formatter support for IntelliJ IDEA.
-The plugin is automatically activated whenever the Maven or Gradle plugins are discovered in a project build script.
+The plugin is automatically activated whenever the Maven or Gradle plugins are discovered in a project build script or if a `.springjavaformatconfig` file.
 A Spring Java Format icon (image:spring-javaformat-intellij-idea/spring-javaformat-intellij-idea-plugin/src/main/resources/spring-javaformat/formatOn.png[title="Icon"]) will also be displayed in the status bar to indicate the formatter is active.
 You can use the standard `code` -> `reformat code` action to format the code.
 

spring-javaformat-intellij-idea/spring-javaformat-intellij-idea-plugin/pom.xml

@@ -12,15 +12,10 @@
  <name>Spring JavaFormat IntelliJ IDEA Plugin</name>
  <properties>
  <main.basedir>${basedir}/../..</main.basedir>
- <java.version>11</java.version>
+ <java.version>17</java.version>
  </properties>
  <dependencies>
  <!-- Compile -->
- <dependency>
- <groupId>io.spring.javaformat</groupId>
- <artifactId>spring-javaformat-formatter</artifactId>
- <version>${project.version}</version>
- </dependency>
  <dependency>
  <groupId>io.spring.javaformat</groupId>
  <artifactId>spring-javaformat-formatter-eclipse-runtime</artifactId>
@@ -32,6 +27,11 @@
  </exclusion>
  </exclusions>
  </dependency>
+ <dependency>
+ <groupId>io.spring.javaformat</groupId>
+ <artifactId>spring-javaformat-formatter</artifactId>
+ <version>${project.version}</version>
+ </dependency>
  <!-- Provided -->
  <dependency>
  <groupId>io.spring.javaformat</groupId>
@@ -41,14 +41,20 @@
  <scope>provided</scope>
  </dependency>
  <dependency>
- <groupId>io.spring.javaformat.intellij.idea</groupId>
+ <groupId>org.jetbrains</groupId>
  <artifactId>annotations</artifactId>
+ <version>13.0</version>
+ <scope>provided</scope>
+ </dependency>
+ <dependency>
+ <groupId>io.spring.javaformat.intellij.idea</groupId>
+ <artifactId>app</artifactId>
  <version>${project.version}</version>
  <scope>provided</scope>
  </dependency>
  <dependency>
  <groupId>io.spring.javaformat.intellij.idea</groupId>
- <artifactId>platform-api</artifactId>
+ <artifactId>jps-model</artifactId>
  <version>${project.version}</version>
  <scope>provided</scope>
  </dependency>
@@ -66,7 +72,7 @@
  </dependency>
  <dependency>
  <groupId>io.spring.javaformat.intellij.idea</groupId>
- <artifactId>idea</artifactId>
+ <artifactId>util_rt</artifactId>
  <version>${project.version}</version>
  <scope>provided</scope>
  </dependency>
@@ -78,7 +84,7 @@
  </dependency>
  <dependency>
  <groupId>io.spring.javaformat.intellij.idea</groupId>
- <artifactId>maven-server-api</artifactId>
+ <artifactId>maven-server</artifactId>
  <version>${project.version}</version>
  <scope>provided</scope>
  </dependency>
@@ -110,6 +116,18 @@
  <artifactId>picocontainer</artifactId>
  <scope>provided</scope>
  </dependency>
+ <dependency>
+ <groupId>org.jetbrains.kotlinx</groupId>
+ <artifactId>kotlinx-coroutines-core</artifactId>
+ <version>1.6.4</version>
+ <scope>provided</scope>
+ </dependency>
+ <dependency>
+ <groupId>it.unimi.dsi</groupId>
+ <artifactId>fastutil</artifactId>
+ <version>8.5.11</version>
+ <scope>provided</scope>
+ </dependency>
  </dependencies>
  <build>
  <resources>