Which types can be used for Java annotation members?

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Today I wanted to create my first annotation interface following this documentation and I got this compiler error 

Invalid type for annotation member":
public @interface MyAnnotation {
    Object myParameter;
    ^^^^^^
}

Obviously Object cannot be used as type of an annotation member. Unfortunately I could not find any information on which types can be used in general.

This I found out using trial-and-error:

  • String → Valid
  • int → Valid
  • Integer → Invalid (Surprisingly)
  • String[] → Valid (Surprisingly)
  • Object → Invalid

Perhaps someone can shed some light on which types are actually allowed and why.

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