C++ or Java, which is faster for high frequency trading?

Imported from previous forum

C++ or Java, which is faster for high frequency trading?

http://www.javacodegeeks.com/2011/07/c-or-java-which-is-faster-for-high.html

How to get C like performance in Java

http://www.javacodegeeks.com/2011/07/how-to-get-c-like-performance-in-java.html

Low GC in Java: Use primitives instead of wrappers