HADOOP-11674. oneByteBuf in CryptoInputStream and CryptoOutputStream should be non static. (Sean Busbey via yliu)

hadoop-common-project/hadoop-common/CHANGES.txt

@@ -634,6 +634,9 @@ Release 2.7.0 - UNRELEASED
     HADOOP-11666. Revert the format change of du output introduced by
     HADOOP-6857. (Byron Wong via aajisaka)
 
+    HADOOP-11674. oneByteBuf in CryptoInputStream and CryptoOutputStream
+    should be non static. (Sean Busbey via yliu)
+
 Release 2.6.1 - UNRELEASED
 
   INCOMPATIBLE CHANGES

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/crypto/CryptoInputStream.java

@@ -60,7 +60,7 @@ public class CryptoInputStream extends FilterInputStream implements
     Seekable, PositionedReadable, ByteBufferReadable, HasFileDescriptor, 
     CanSetDropBehind, CanSetReadahead, HasEnhancedByteBufferAccess, 
     ReadableByteChannel {
-  private static final byte[] oneByteBuf = new byte[1];
+  private final byte[] oneByteBuf = new byte[1];
   private final CryptoCodec codec;
   private final Decryptor decryptor;
   private final int bufferSize;

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/crypto/CryptoOutputStream.java

@@ -45,7 +45,7 @@ import com.google.common.base.Preconditions;
 @InterfaceStability.Evolving
 public class CryptoOutputStream extends FilterOutputStream implements 
     Syncable, CanSetDropBehind {
-  private static final byte[] oneByteBuf = new byte[1];
+  private final byte[] oneByteBuf = new byte[1];
   private final CryptoCodec codec;
   private final Encryptor encryptor;
   private final int bufferSize;