Class.getGenericInterfaces()[index].toString() duplicates outer class name

FULL PRODUCT VERSION :
java version " 1.7.0_25 "
Java(TM) SE Runtime Environment (build 1.7.0_25-b15)
Java HotSpot(TM) 64-Bit Server VM (build 23.25-b01, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
Linux 3.2.0-48-generic #74-Ubuntu SMP Thu Jun 6 19:43:26 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

A DESCRIPTION OF THE PROBLEM :
Code like " MyClass.class.getGenericInterfaces()[0].toString() " returnes string contains outer class name repeated twice if MyClass is an inner class. Bug appears in 7u25, 6u37 and OpenJDK 6.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Compile and run the code below.
You will see returned (errorneous) and expected values.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
testcase.TestCase$BaseInterface<java.lang.String>
ACTUAL -
testcase.TestCase.testcase.TestCase$BaseInterface<java.lang.String>

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
package testcase;

public class TestCase {
    public interface BaseInterface<T> { }
    public class MyClass implements BaseInterface<String> { }

    public static void main(String[] args) {
        String genericInterface = MyClass.class.getGenericInterfaces()[0].toString();
        System.out.println(genericInterface);
        System.out.println( " Expected: " + BaseInterface.class.getName() +
             " <java.lang.String> " );
    }
}
---------- END SOURCE ----------