Github user NightOwl888 commented on a diff in the pull request:
https://github.com/apache/lucenenet/pull/190#discussion_r82028685
--- Diff: src/Lucene.Net.Core/Support/DataInputStream.cs ---
@@ -0,0 +1,323 @@
+using System;
+using System.IO;
+
+namespace Lucene.Net.Support
+{
+ /// <summary>
+ /// Java's DataInputStream is similar to .NET's BinaryReader. However,
it reads
+ /// using a modified UTF-8 format that cannot be read using
BinaryReader.
+ /// This is a port of DataInputStream that is fully compatible with
Java's DataOutputStream.
+ /// </summary>
+ public class DataInputStream : IDataInput, IDisposable
--- End diff --
I added all of the tests I could find from Java for these 2 classes. Do
note that the ReadDouble() method is not implemented because we don't have
`Number.LongBitsToDouble()` implemented. Neither are currently required by
Lucene.Net
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