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diff --git a/subversion/bindings/javahl/native/NativeStream.hpp b/subversion/bindings/javahl/native/NativeStream.hpp
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+++ b/subversion/bindings/javahl/native/NativeStream.hpp
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+/**
+ * @copyright
+ * ====================================================================
+ *    Licensed to the Apache Software Foundation (ASF) under one
+ *    or more contributor license agreements.  See the NOTICE file
+ *    distributed with this work for additional information
+ *    regarding copyright ownership.  The ASF licenses this file
+ *    to you under the Apache License, Version 2.0 (the
+ *    "License"); you may not use this file except in compliance
+ *    with the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing,
+ *    software distributed under the License is distributed on an
+ *    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ *    KIND, either express or implied.  See the License for the
+ *    specific language governing permissions and limitations
+ *    under the License.
+ * ====================================================================
+ * @endcopyright
+ */
+
+#ifndef SVN_JAVAHL_NATIVE_STREAM_HPP
+#define SVN_JAVAHL_NATIVE_STREAM_HPP
+
+#include <stdexcept>
+
+#include "jniwrapper/jni_array.hpp"
+
+#include "SVNBase.h"
+
+#include "svn_io.h"
+
+namespace JavaHL {
+
+/**
+ * Object wrapper for @c org.apache.subversion.javahl.types.NativeInputStream.
+ *
+ * @since New in 1.9.
+ */
+class NativeInputStream : public ::SVNBase
+{
+public:
+  /**
+   * Construcs the native instance that will be wrapped in a Java obejct.
+   * If @a stream is @c NULL, you must call #set_stream before creating
+   * the Java wrapper.
+   */
+  explicit NativeInputStream(svn_stream_t* stream = NULL)
+    : m_stream(stream),
+      m_mark(NULL)
+    {}
+
+  ~NativeInputStream();
+
+  /**
+   * Returns a reference to the pool owned by this wrapped object.
+   */
+  const SVN::Pool& get_pool() const
+    {
+      return pool;
+    }
+
+  /**
+   * Sets the @a stream that this object will own.
+   * Do not call this function if a stream was passed to the constructor.
+   */
+  void set_stream(svn_stream_t* stream);
+
+  /**
+   * Create the Java object that binds to this native object.
+   */
+  jobject create_java_wrapper()
+    {
+      return createCppBoundObject(m_class_name);
+    }
+
+  /**
+   * Retrieve the address of the native object from the bound Java object.
+   */
+  static NativeInputStream* get_self(::Java::Env env, jobject jthis);
+
+  static NativeInputStream* get_self_unsafe(::Java::Env env, jobject jthis);
+
+public:
+  /**
+   * Implements @c InputStream.close().
+   * Also disposes the native object.
+   */
+  void close(::Java::Env env, jobject jthis);
+
+  /**
+   * Implements @c InputStream.markSupported().
+   */
+  bool mark_supported(::Java::Env env) const;
+
+  /**
+   * Implements @c InputStream.mark(int).
+   * The @c readlimit parameter of the Java method is ignored.
+   */
+  void mark(::Java::Env env);
+
+  /**
+   * Implements @c InputStream.reset().
+   */
+  void reset(::Java::Env env);
+
+  /**
+   * Implements @c InputStream.read().
+   */
+  jint read(::Java::Env env);
+
+  /**
+   * Implements @c InputStream.read(byte[],int,int).
+   */
+  jint read(::Java::Env env,
+            ::Java::ByteArray::MutableContents& dst,
+            jint offset, jint length);
+
+  /**
+   * Implements @c InputStream.skip(long).
+   */
+  jlong skip(::Java::Env env, jlong count);
+
+private:
+  virtual void dispose(jobject jthis);
+
+  static const char* const m_class_name;
+  svn_stream_t* m_stream;
+  svn_stream_mark_t* m_mark;
+};
+
+
+/**
+ * Object wrapper for @c org.apache.subversion.javahl.types.NativeOutputStream.
+ *
+ * @since New in 1.9.
+ */
+class NativeOutputStream : public ::SVNBase
+{
+public:
+  /**
+   * Construcs the native instance that will be wrapped in a Java obejct.
+   * If @a stream is @c NULL, you must call #set_stream before creating
+   * the Java wrapper.
+   */
+  explicit NativeOutputStream(svn_stream_t* stream = NULL)
+    : m_stream(stream)
+    {}
+
+  ~NativeOutputStream();
+
+  /**
+   * Returns a reference to the pool owned by this wrapped object.
+   */
+  const SVN::Pool& get_pool() const
+    {
+      return pool;
+    }
+
+  /**
+   * Sets the @a stream that this object will own.
+   * Do not call this function if a stream was passed to the constructor.
+   */
+  void set_stream(svn_stream_t* stream);
+
+  /**
+   * Create the Java object that binds to this native object.
+   */
+  jobject create_java_wrapper()
+    {
+      return createCppBoundObject(m_class_name);
+    }
+
+  /**
+   * Retrieve the address of the native object from the bound Java object.
+   */
+  static NativeOutputStream* get_self(::Java::Env env, jobject jthis);
+
+  static NativeOutputStream* get_self_unsafe(::Java::Env env, jobject jthis);
+
+public:
+  /**
+   * Implements @c OutputStream.close().
+   * Also disposes the native object.
+   */
+  void close(::Java::Env env, jobject jthis);
+
+  /**
+   * Implements @c OutputStream.write(int).
+   */
+  void write(::Java::Env env, jint byte);
+
+  /**
+   * Implements @c OutputStream.write(byte[],int,int).
+   */
+  void write(::Java::Env env,
+             const ::Java::ByteArray::Contents& src,
+             jint offset, jint length);
+
+private:
+  virtual void dispose(jobject jthis);
+
+  static const char* const m_class_name;
+  svn_stream_t* m_stream;
+};
+
+} // namespace JavaHL
+
+#endif // SVN_JAVAHL_NATIVE_STREAM_HPP