Annotation Processor

I downloaded the source and called it AnnotationProcessor. Our class AnnotationProcessor extends AbstractProcessor.

@SupportedAnnotationTypes(
{
	"annotations.MyClassAnnotation",
	"annotations.MySourceAnnotation",
	"annotations.MyRuntimeAnnotation"
})

The following commands worked at the command prompt.

D:\AnnotationsProject\out\production\AnnotationsProject>javac -d . -cp . -processor AnnotationProcessor ../../../src/TestingAnnotatedClasses.java
// output at the Terminal
CLASS unnamed package.TestingAnnotatedClasses is annotated with annotations.MyRuntimeAnnotation
CLASS unnamed package.TestingAnnotatedClasses is annotated with annotations.MyClassAnnotation
CLASS unnamed package.TestingAnnotatedClasses is annotated with annotations.MySourceAnnotation

D:\AnnotationsProject\out\production\AnnotationsProject>

javac -d . -cp . -processor AnnotationProcessor ../../../src/TestingAnnotatedClasses.java

The AnnotationProcessor can leverage annotations of every type of Retention Policy while it executes. You can build an AnnotationProcessor to accomplish any task.

generate log files
Build XML

Look at the AnnotationTarget used to annotate Annotations. Go back to the terminal. After we have made the changes, this is the output of the terminal session.

D:\AnnotationsProject\out\production\AnnotationsProject>javac -d . -cp . -processor AnnotationProcessor ../../../src/TestingAnnotatedClasses.java
CLASS unnamed package.TestingAnnotatedClasses is annotated with annotations.MyRuntimeAnnotation
FIELD TestingAnnotatedClasses.myField is annotated with annotations.MyClassAnnotation
METHOD TestingAnnotatedClasses.printRuntimeAnnotations() is annotated with annotations.MySourceAnnotation

D:\AnnotationsProject\out\production\AnnotationsProject>

Here is the related problem:
'author', 'version', 'description' missing though required

After adding this code

@MyRuntimeAnnotation(
  author = "Tim",
  version = 1.0,
  description = "This class is used for testing annotations"
)

to TestingAnnotatedClasses.java the errors in MyRuntimeAnnotation.java disappeared.
When you run the class TestingAnnotatedClasses.java, this is the output that will appear.

Class Annotation: @annotations.MyRuntimeAnnotation(author="Tom", version=1.0, description="This class is used for testing annotations")

D:\AnnotationsProject\out\production\AnnotationsProject>javap annotations\MyRuntimeAnnotation
Warning: File .\annotations\MyRuntimeAnnotation.class does not contain class annotations\MyRuntimeAnnotation
Compiled from "MyRuntimeAnnotation.java"
public interface annotations.MyRuntimeAnnotation extends java.lang.annotation.Annotation {
  public abstract java.lang.String author();
  public abstract double version();
  public abstract java.lang.String description();
}

D:\AnnotationsProject\out\production\AnnotationsProject>
Under the package annotations select MyRuntimeAnnotation 
From the IntelliJ menu select 
View --> Show ByteCode

Create a new directory under the AnnotationsProject and call it docs.
Under the src folder select TestingAnnotatedClasses

This is the output folder for the General HTML created through Java Docs.
file:///D:/AnnotationsProject/docs/TestingAnnotatedClasses.html

@MyRuntimeAnnotation(author="Thomas Hauck",
version=1.1,
description="This class is used for testing annotations")
public class TestingAnnotatedClasses
extends java.lang.Object