Improve Javadoc and consistently use SourceVersion.latest().

src/core/lombok/core/AnnotationProcessor.java

@@ -69,7 +69,7 @@ static abstract class ProcessorDescriptor {
 	private final List<String> delayedWarnings = new ArrayList<String>();
 
 	/**
-	 * This method is a simplified version of {@link lombok.javac.apt.LombokProcessor.getJavacProcessingEnvironment}
+	 * This method is a simplified version of {@link lombok.javac.apt.LombokProcessor#getJavacProcessingEnvironment}
 	 * It simply returns the processing environment, but in case of gradle incremental compilation,
 	 * the delegate ProcessingEnvironment of the gradle wrapper is returned.
 	 */
@@ -120,7 +120,7 @@ private static Object tryGetProcessingEnvField(Class<?> delegateClass, Object in
 	}
 
 	/**
-	 * InteliJ >= 2020.3
+	 * IntelliJ IDEA >= 2020.3
 	 */
 	private static Object tryGetProxyDelegateToField(Class<?> delegateClass, Object instance) {
 		try {
@@ -257,6 +257,6 @@ static class EcjDescriptor extends ProcessorDescriptor {
 	 * We just return the latest version of whatever JDK we run on. Stupid? Yeah, but it's either that or warnings on all versions but 1. Blame Joe.
 	 */
 	@Override public SourceVersion getSupportedSourceVersion() {
-		return SourceVersion.values()[SourceVersion.values().length - 1];
+		return SourceVersion.latest();
 	}
 }

src/core/lombok/javac/HandlerLibrary.java

@@ -65,7 +65,7 @@ public class HandlerLibrary {
 
 	/**
 	 * Creates a new HandlerLibrary that will report any problems or errors to the provided messager.
-	 * You probably want to use {@link #load(Messager)} instead.
+	 * You probably want to use {@link #load(Messager, Trees)} instead.
 	 */
 	public HandlerLibrary(Messager messager) {
 		ConfigurationKeysLoader.LoaderLoader.loadAllConfigurationKeys();

src/core/lombok/javac/apt/LombokProcessor.java

@@ -504,7 +504,7 @@ private Object tryGetFilerField(Class<?> delegateClass, Object instance) {
 	}
 
 	/**
-	 * InteliJ >= 2020.3
+	 * IntelliJ IDEA >= 2020.3
 	 */
 	private Object tryGetProxyDelegateToField(Class<?> delegateClass, Object instance) {
 		try {

src/core/lombok/javac/apt/Processor.java

@@ -222,7 +222,7 @@ private static String escape(char ch) {
 	 * We just return the latest version of whatever JDK we run on. Stupid? Yeah, but it's either that or warnings on all versions but 1.
 	 */
 	@Override public SourceVersion getSupportedSourceVersion() {
-		return SourceVersion.values()[SourceVersion.values().length - 1];
+		return SourceVersion.latest();
 	}
 
 	@Override public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {