[Bug classpath/24625] New: Incorrect buffer length gnu.java.nio.SocketChannelImpl with direct ByteBuffer

[john dot zigman at anu dot edu dot au]

A call to SocketChannel.read(buffer) passing a ByteBuffer which has been
allocated using by a call to the direct allocate method*,
ByteBuffer.allocateDirect(len), where the number of bytes read from the channel
is less than len returns a ByteBuffer with the limit set to len.

The bug seems to be on line 261 of gnu.java.nio.SocketChannelImpl where the
original line

          dst.put (data, offset, len);

should be

          dst.put (data, offset, readBytes);

This is also present in classpath-0.18 (at the same line).

* This done in the context of the JikesRVM and required the replacement of
VMDirectByteBuffer (and replacement of the references to
gnu.classpath.RawData). It also appears that the further works needs to be done
in order to take advantage of direct buffers.


-- 
           Summary: Incorrect buffer length gnu.java.nio.SocketChannelImpl
                    with direct ByteBuffer
           Product: classpath
           Version: 0.17
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: classpath
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: john dot zigman at anu dot edu dot au


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24625