Add java.nio classes into EXPECTED_UPSTREAM

The libcore-compare-upstreams tool is used to guess the version of each
file by comparing the diff.

Bug: 111603149
Test: ojluni_refresh_files
Change-Id: Ibdcd058985544f37d4ddfec199a845cc6dc80bdc
diff --git a/EXPECTED_UPSTREAM b/EXPECTED_UPSTREAM
index 55e40aa..f73a4f9 100644
--- a/EXPECTED_UPSTREAM
+++ b/EXPECTED_UPSTREAM
@@ -364,3 +364,10 @@
 ojluni/src/main/java/java/net/UnknownHostException.java,jdk8u/jdk8u121-b13,jdk/src/share/classes/java/net/UnknownHostException.java
 ojluni/src/main/java/java/net/UnknownServiceException.java,jdk8u/jdk8u121-b13,jdk/src/share/classes/java/net/UnknownServiceException.java
 ojluni/src/main/java/java/net/package-info.java,jdk8u/jdk8u121-b13,jdk/src/share/classes/java/net/package-info.java
+# Some java.nio Buffer and Exception classes are generated from templates, and thus has no direct mapping to an upstream file.
+ojluni/src/main/java/java/nio/Bits.java,jdk8u/jdk8u121-b13,jdk/src/share/classes/java/nio/Bits.java
+ojluni/src/main/java/java/nio/Buffer.java,jdk8u/jdk8u121-b13,jdk/src/share/classes/java/nio/Buffer.java
+ojluni/src/main/java/java/nio/ByteOrder.java,jdk8u/jdk8u121-b13,jdk/src/share/classes/java/nio/ByteOrder.java
+ojluni/src/main/java/java/nio/CharBufferSpliterator.java,jdk8u/jdk8u121-b13,jdk/src/share/classes/java/nio/CharBufferSpliterator.java
+ojluni/src/main/java/java/nio/MappedByteBuffer.java,jdk8u/jdk8u121-b13,jdk/src/share/classes/java/nio/MappedByteBuffer.java
+ojluni/src/main/java/java/nio/StringCharBuffer.java,jdk8u/jdk8u121-b13,jdk/src/share/classes/java/nio/StringCharBuffer.java