Why does Java 8 apply annotations differently to derived classes?

Question

If I have the following two classes:

// Base.java
public abstract class Base {
  abstract void method(T t);
}

and

Answer 1

That's because it was fixed as this behavior seems to be more consistent. See the JDK-6695379 issue for details. And that's not only Java 8, it was also backported to Java 7u80:

C:\Test>"C:\Program Files\Java\jdk1.7.0_79\bin\javac.exe" Derived.java

C:\Test>javap -v Derived.class >javac7_79

C:\Test>"C:\Program Files\Java\jdk1.7.0_80\bin\javac.exe" Derived.java

C:\Test>javap -v Derived.class >javac7_80

C:\Test>diff javac7_79 javac7_80
2,3c2,3
<   Last modified 18.05.2015; size 484 bytes
<   MD5 checksum bd5e729c8eda30f72f3dc5301fa9bfc2
---
>   Last modified 18.05.2015; size 496 bytes
>   MD5 checksum 728d9e30b9aab2381e711b3edd008000
69a70,71
>     RuntimeVisibleAnnotations:
>       0: #14()