JAV2I12 — SerializationInputStream and SerializationOutputStream

Summary: This item arises from the Java-to-IDL Mapping RFP, but is also of
concern to the Objects By Value RTF because it affects the Java
ORB implementation of Objects By Value.

The currently specified delegation relationship between
SerializationInputStream and SerializationOutputStream and their
underlying ORB stream classes is inefficient and awkward.
It is awkward because it requires the ORB implementation of the
underlying streams to know about their "wrapper" serialization
streams and to be careful to always pass out a reference to the
wrapper instead of a "this" pointer. It is inefficient because
all items (even primitives) that are written to these streams
need to go through an extra delegation step through the wrapper
class as the underlying stream does not know whether it can
safely bypass the wrapper method.

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