I defined my own custom annotation
@Target(value={ElementType.METHOD, ElementType.FIELD})
@Retention(RetentionPolicy.RUNTIME)
public @interface MyCustomAnnotation {
Class<?> myType();
}
how, if at all, can I make the attribute optional
You can provide a default value for the attribute:
@Target(value={ElementType.METHOD, ElementType.FIELD})
@Retention(RetentionPolicy.RUNTIME)
public @interface MyCustomAnnotation {
Class<?> myType() default Object.class;
}