Fix parameterized types discrepancies

In the SPI, the spec states the following:

• For a producer method with method return type X of a bean with bean class T, the container must raise an event of type ProcessProducerMethod<T, X>.
• For a producer field with field type X of a bean with bean class T, the container must raise an event of type ProcessProducerField<T, X>.

But the Javadoc and impl behavior is

• For a producer method with method return type T of a bean with bean class X, the container must raise an event of type ProcessProducerMethod<T, X>.
• For a producer field with field type T of a bean with bean class X, the container must raise an event of type ProcessProducerField<T, X>.