FULL PRODUCT VERSION :
java version "1.7.0_01"
Java(TM) SE Runtime Environment (build 1.7.0_01-b08)
Java HotSpot(TM) 64-Bit Server VM (build 21.1-b02, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows [Version 6.1.7601]

A DESCRIPTION OF THE PROBLEM :
Let's take class javax.xml.ws.Holder<T> for example.

This code compiles without error:
Holder<Object> holder = new Holder<Object>("abc");

If we turn to use the diamond operator:
Holder<Object> holder = new Holder<>("abc");

Compilation fails with the following erro message:
Uncompilable source code - incompatible types
  required: javax.xml.ws.Holder<java.lang.Object>
  found: javax.xml.ws.Holder<java.lang.String>


REPRODUCIBILITY :
This bug can be reproduced always.