Build: Fix Java 9 compilation issue.

Android was throwing a runtime exception when using the
embedded driver if it was compiled using Java 9.

Author: rozza

driver-embedded/src/main/com/mongodb/embedded/client/EmbeddedInternalConnection.java

@@ -41,6 +41,7 @@
 import org.bson.ByteBufNIO;
 import org.bson.codecs.Decoder;
 
+import java.nio.Buffer;
 import java.nio.ByteBuffer;
 import java.util.ArrayList;
 import java.util.Collections;
@@ -162,9 +163,8 @@ public void write(final List<ByteBuf> buffers) {
         @Override
         public ByteBuf read(final int numBytes) {
             ByteBuffer slice = curResponse.slice();
-            slice.limit(numBytes);
-            curResponse.position(curResponse.position() + numBytes);
-
+            ((Buffer) slice).limit(numBytes);
+            ((Buffer) curResponse).position(((Buffer)curResponse).position() + numBytes);
             return new ByteBufNIO(slice);
         }