Code not compile with java7 but compiled with java6

Hi all

I after class:
public class StrangeClass < T < S, T > StrangeClass extends S extends StrangeClass < T, S > > {}

Public Shared Sub main (String [] args) throws InstantiationException, IllegalAccessException {}
System.out.println ("test");
}
}

It is compiling with eclipse (Java 7) and java 6u33 (oracle) but do not compile with java 7u5 (oracle)

StrangeClass.java:1: error: type argument S is not within the limits of the variable of type T
public class StrangeClass < T < S, T > StrangeClass extends S extends StrangeClass < T, S > > {}
^
where S, T are variables of type:
S < T, S > StrangeClass declared in the StrangeClass class extends
T extends < S, T > StrangeClass declared in the StrangeClass class
1 error

Don't you think it's a bug or an expected behavior?

Because they are two different things? Java 7 is NOT just an 'upgrade' of Java 6, it's a new platform. That's why things can and will be different.

In this case simply maybe just a bug in the compiler was plugged.

Tags: Java

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