Fix bugs for internal integration.

9 files changed, 11 insertions, 1586 deletions

diff --git a/Makefile.am b/Makefile.am
index a4de1bd3..a47a1882 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -617,6 +617,7 @@ python_EXTRA_DIST=                                                           \
   python/google/protobuf/internal/symbol_database_test.py                    \
   python/google/protobuf/internal/test_bad_identifiers.proto                 \
   python/google/protobuf/internal/test_util.py                               \
+  python/google/protobuf/internal/testing_refleaks.py                        \
   python/google/protobuf/internal/text_encoding_test.py                      \
   python/google/protobuf/internal/text_format_test.py                        \
   python/google/protobuf/internal/type_checkers.py                           \
@@ -648,6 +649,8 @@ python_EXTRA_DIST=                                                           \
   python/google/protobuf/pyext/map_container.h                               \
   python/google/protobuf/pyext/message.cc                                    \
   python/google/protobuf/pyext/message.h                                     \
+  python/google/protobuf/pyext/message_factory.cc                            \
+  python/google/protobuf/pyext/message_factory.h                             \
   python/google/protobuf/pyext/message_module.cc                             \
   python/google/protobuf/pyext/proto2_api_test.proto                         \
   python/google/protobuf/pyext/python.proto                                  \
@@ -749,6 +752,7 @@ js_EXTRA_DIST=                              \
   js/gulpfile.js                            \
   js/jasmine.json                           \
   js/map.js                                 \
+  js/maps_test.js                           \
   js/message.js                             \
   js/message_test.js                        \
   js/node_loader.js                         \
diff --git a/java/src/main/java/com/google/protobuf/AbstractMessage.java b/java/src/main/java/com/google/protobuf/AbstractMessage.java
deleted file mode 100755
index 7639efcf..00000000
--- a/java/src/main/java/com/google/protobuf/AbstractMessage.java
+++ /dev/null
@@ -1,646 +0,0 @@
-// Protocol Buffers - Google's data interchange format
-// Copyright 2008 Google Inc.  All rights reserved.
-// https://developers.google.com/protocol-buffers/
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-package com.google.protobuf;
-
-import com.google.protobuf.Descriptors.EnumValueDescriptor;
-import com.google.protobuf.Descriptors.FieldDescriptor;
-import com.google.protobuf.Descriptors.OneofDescriptor;
-import com.google.protobuf.Internal.EnumLite;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Map;
-
-/**
- * A partial implementation of the {@link Message} interface which implements
- * as many methods of that interface as possible in terms of other methods.
- *
- * @author kenton@google.com Kenton Varda
- */
-public abstract class AbstractMessage
-    // TODO(dweis): Update GeneratedMessage to parameterize with MessageType and BuilderType.
-    extends AbstractMessageLite
-    implements Message {
-
-  @Override
-  public boolean isInitialized() {
-    return MessageReflection.isInitialized(this);
-  }
-
-  /**
-   * Interface for the parent of a Builder that allows the builder to
-   * communicate invalidations back to the parent for use when using nested
-   * builders.
-   */
-  protected interface BuilderParent {
-
-    /**
-     * A builder becomes dirty whenever a field is modified -- including fields
-     * in nested builders -- and becomes clean when build() is called.  Thus,
-     * when a builder becomes dirty, all its parents become dirty as well, and
-     * when it becomes clean, all its children become clean.  The dirtiness
-     * state is used to invalidate certain cached values.
-     * <br>
-     * To this end, a builder calls markDirty() on its parent whenever it
-     * transitions from clean to dirty.  The parent must propagate this call to
-     * its own parent, unless it was already dirty, in which case the
-     * grandparent must necessarily already be dirty as well.  The parent can
-     * only transition back to "clean" after calling build() on all children.
-     */
-    void markDirty();
-  }
-
-  /** Create a nested builder. */
-  protected Message.Builder newBuilderForType(BuilderParent parent) {
-    throw new UnsupportedOperationException("Nested builder is not supported for this type.");
-  }
-
-
-  @Override
-  public List<String> findInitializationErrors() {
-    return MessageReflection.findMissingFields(this);
-  }
-
-  @Override
-  public String getInitializationErrorString() {
-    return MessageReflection.delimitWithCommas(findInitializationErrors());
-  }
-
-  /** TODO(jieluo): Clear it when all subclasses have implemented this method. */
-  @Override
-  public boolean hasOneof(OneofDescriptor oneof) {
-    throw new UnsupportedOperationException("hasOneof() is not implemented.");
-  }
-
-  /** TODO(jieluo): Clear it when all subclasses have implemented this method. */
-  @Override
-  public FieldDescriptor getOneofFieldDescriptor(OneofDescriptor oneof) {
-    throw new UnsupportedOperationException(
-        "getOneofFieldDescriptor() is not implemented.");
-  }
-
-  @Override
-  public final String toString() {
-    return TextFormat.printToString(this);
-  }
-
-  @Override
-  public void writeTo(final CodedOutputStream output) throws IOException {
-    MessageReflection.writeMessageTo(this, getAllFields(), output, false);
-  }
-
-  protected int memoizedSize = -1;
-
-  @Override
-  public int getSerializedSize() {
-    int size = memoizedSize;
-    if (size != -1) {
-      return size;
-    }
-
-    memoizedSize = MessageReflection.getSerializedSize(this, getAllFields());
-    return memoizedSize;
-  }
-
-  @Override
-  public boolean equals(final Object other) {
-    if (other == this) {
-      return true;
-    }
-    if (!(other instanceof Message)) {
-      return false;
-    }
-    final Message otherMessage = (Message) other;
-    if (getDescriptorForType() != otherMessage.getDescriptorForType()) {
-      return false;
-    }
-    return compareFields(getAllFields(), otherMessage.getAllFields()) &&
-        getUnknownFields().equals(otherMessage.getUnknownFields());
-  }
-
-  @Override
-  public int hashCode() {
-    int hash = memoizedHashCode;
-    if (hash == 0) {
-      hash = 41;
-      hash = (19 * hash) + getDescriptorForType().hashCode();
-      hash = hashFields(hash, getAllFields());
-      hash = (29 * hash) + getUnknownFields().hashCode();
-      memoizedHashCode = hash;
-    }
-    return hash;
-  }
-  
-  private static ByteString toByteString(Object value) {
-    if (value instanceof byte[]) {
-      return ByteString.copyFrom((byte[]) value);
-    } else {
-      return (ByteString) value;
-    }
-  }
- 
-  /**
-   * Compares two bytes fields. The parameters must be either a byte array or a
-   * ByteString object. They can be of different type though.
-   */
-  private static boolean compareBytes(Object a, Object b) {
-    if (a instanceof byte[] && b instanceof byte[]) {
-      return Arrays.equals((byte[])a, (byte[])b);
-    }
-    return toByteString(a).equals(toByteString(b));
-  }
-  
-  /**
-   * Converts a list of MapEntry messages into a Map used for equals() and
-   * hashCode().
-   */
-  @SuppressWarnings({"rawtypes", "unchecked"})
-  private static Map convertMapEntryListToMap(List list) {
-    if (list.isEmpty()) {
-      return Collections.emptyMap();
-    }
-    Map result = new HashMap();
-    Iterator iterator = list.iterator();
-    Message entry = (Message) iterator.next();
-    Descriptors.Descriptor descriptor = entry.getDescriptorForType();
-    Descriptors.FieldDescriptor key = descriptor.findFieldByName("key");
-    Descriptors.FieldDescriptor value = descriptor.findFieldByName("value");
-    Object fieldValue = entry.getField(value);
-    if (fieldValue instanceof EnumValueDescriptor) {
-      fieldValue = ((EnumValueDescriptor) fieldValue).getNumber();
-    }
-    result.put(entry.getField(key), fieldValue);
-    while (iterator.hasNext()) {
-      entry = (Message) iterator.next();
-      fieldValue = entry.getField(value);
-      if (fieldValue instanceof EnumValueDescriptor) {
-        fieldValue = ((EnumValueDescriptor) fieldValue).getNumber();
-      }
-      result.put(entry.getField(key), fieldValue);
-    }
-    return result;
-  }
-  
-  /**
-   * Compares two map fields. The parameters must be a list of MapEntry
-   * messages.
-   */
-  @SuppressWarnings({"rawtypes", "unchecked"})
-  private static boolean compareMapField(Object a, Object b) {
-    Map ma = convertMapEntryListToMap((List) a);
-    Map mb = convertMapEntryListToMap((List) b);
-    return MapFieldLite.equals(ma, mb);
-  }
-  
-  /**
-   * Compares two set of fields.
-   * This method is used to implement {@link AbstractMessage#equals(Object)}
-   * and {@link AbstractMutableMessage#equals(Object)}. It takes special care
-   * of bytes fields because immutable messages and mutable messages use
-   * different Java type to reprensent a bytes field and this method should be
-   * able to compare immutable messages, mutable messages and also an immutable
-   * message to a mutable message.
-   */
-  static boolean compareFields(Map<FieldDescriptor, Object> a,
-      Map<FieldDescriptor, Object> b) {
-    if (a.size() != b.size()) {
-      return false;
-    }
-    for (FieldDescriptor descriptor : a.keySet()) {
-      if (!b.containsKey(descriptor)) {
-        return false;
-      }
-      Object value1 = a.get(descriptor);
-      Object value2 = b.get(descriptor);
-      if (descriptor.getType() == FieldDescriptor.Type.BYTES) {
-        if (descriptor.isRepeated()) {
-          List list1 = (List) value1;
-          List list2 = (List) value2;
-          if (list1.size() != list2.size()) {
-            return false;
-          }
-          for (int i = 0; i < list1.size(); i++) {
-            if (!compareBytes(list1.get(i), list2.get(i))) {
-              return false;
-            }
-          }
-        } else {
-          // Compares a singular bytes field.
-          if (!compareBytes(value1, value2)) {
-            return false;
-          }
-        }
-      } else if (descriptor.isMapField()) {
-        if (!compareMapField(value1, value2)) {
-          return false;
-        }
-      } else {
-        // Compare non-bytes fields.
-        if (!value1.equals(value2)) {
-          return false;
-        }
-      }
-    }
-    return true;
-  }
-  
-  /**
-   * Calculates the hash code of a map field. {@code value} must be a list of
-   * MapEntry messages.
-   */
-  @SuppressWarnings("unchecked")
-  private static int hashMapField(Object value) {
-    return MapFieldLite.calculateHashCodeForMap(convertMapEntryListToMap((List) value));
-  }
-
-  /** Get a hash code for given fields and values, using the given seed. */
-  @SuppressWarnings("unchecked")
-  protected static int hashFields(int hash, Map<FieldDescriptor, Object> map) {
-    for (Map.Entry<FieldDescriptor, Object> entry : map.entrySet()) {
-      FieldDescriptor field = entry.getKey();
-      Object value = entry.getValue();
-      hash = (37 * hash) + field.getNumber();
-      if (field.isMapField()) {
-        hash = (53 * hash) + hashMapField(value);
-      } else if (field.getType() != FieldDescriptor.Type.ENUM){
-        hash = (53 * hash) + value.hashCode();
-      } else if (field.isRepeated()) {
-        List<? extends EnumLite> list = (List<? extends EnumLite>) value;
-        hash = (53 * hash) + Internal.hashEnumList(list);
-      } else {
-        hash = (53 * hash) + Internal.hashEnum((EnumLite) value);
-      }
-    }
-    return hash;
-  }
-
-  /**
-   * Package private helper method for AbstractParser to create
-   * UninitializedMessageException with missing field information.
-   */
-  @Override
-  UninitializedMessageException newUninitializedMessageException() {
-    return Builder.newUninitializedMessageException(this);
-  }
-
-  // =================================================================
-
-  /**
-   * A partial implementation of the {@link Message.Builder} interface which
-   * implements as many methods of that interface as possible in terms of
-   * other methods.
-   */
-  @SuppressWarnings("unchecked")
-  public static abstract class Builder<BuilderType extends Builder<BuilderType>>
-      extends AbstractMessageLite.Builder
-      implements Message.Builder {
-    // The compiler produces an error if this is not declared explicitly.
-    @Override
-    public abstract BuilderType clone();
-
-    /** TODO(jieluo): Clear it when all subclasses have implemented this method. */
-    @Override
-    public boolean hasOneof(OneofDescriptor oneof) {
-      throw new UnsupportedOperationException("hasOneof() is not implemented.");
-    }
-
-    /** TODO(jieluo): Clear it when all subclasses have implemented this method. */
-    @Override
-    public FieldDescriptor getOneofFieldDescriptor(OneofDescriptor oneof) {
-      throw new UnsupportedOperationException(
-          "getOneofFieldDescriptor() is not implemented.");
-    }
-
-    /** TODO(jieluo): Clear it when all subclasses have implemented this method. */
-    @Override
-    public BuilderType clearOneof(OneofDescriptor oneof) {
-      throw new UnsupportedOperationException("clearOneof() is not implemented.");
-    }
-
-    @Override
-    public BuilderType clear() {
-      for (final Map.Entry<FieldDescriptor, Object> entry :
-           getAllFields().entrySet()) {
-        clearField(entry.getKey());
-      }
-      return (BuilderType) this;
-    }
-
-    @Override
-    public List<String> findInitializationErrors() {
-      return MessageReflection.findMissingFields(this);
-    }
-
-    @Override
-    public String getInitializationErrorString() {
-      return MessageReflection.delimitWithCommas(findInitializationErrors());
-    }
-    
-    @Override
-    protected BuilderType internalMergeFrom(AbstractMessageLite other) {
-      return mergeFrom((Message) other);
-    }
-
-    @Override
-    public BuilderType mergeFrom(final Message other) {
-      if (other.getDescriptorForType() != getDescriptorForType()) {
-        throw new IllegalArgumentException(
-          "mergeFrom(Message) can only merge messages of the same type.");
-      }
-
-      // Note:  We don't attempt to verify that other's fields have valid
-      //   types.  Doing so would be a losing battle.  We'd have to verify
-      //   all sub-messages as well, and we'd have to make copies of all of
-      //   them to insure that they don't change after verification (since
-      //   the Message interface itself cannot enforce immutability of
-      //   implementations).
-      // TODO(kenton):  Provide a function somewhere called makeDeepCopy()
-      //   which allows people to make secure deep copies of messages.
-
-      for (final Map.Entry<FieldDescriptor, Object> entry :
-           other.getAllFields().entrySet()) {
-        final FieldDescriptor field = entry.getKey();
-        if (field.isRepeated()) {
-          for (final Object element : (List)entry.getValue()) {
-            addRepeatedField(field, element);
-          }
-        } else if (field.getJavaType() == FieldDescriptor.JavaType.MESSAGE) {
-          final Message existingValue = (Message)getField(field);
-          if (existingValue == existingValue.getDefaultInstanceForType()) {
-            setField(field, entry.getValue());
-          } else {
-            setField(field,
-              existingValue.newBuilderForType()
-                .mergeFrom(existingValue)
-                .mergeFrom((Message)entry.getValue())
-                .build());
-          }
-        } else {
-          setField(field, entry.getValue());
-        }
-      }
-
-      mergeUnknownFields(other.getUnknownFields());
-
-      return (BuilderType) this;
-    }
-
-    @Override
-    public BuilderType mergeFrom(final CodedInputStream input)
-                                 throws IOException {
-      return mergeFrom(input, ExtensionRegistry.getEmptyRegistry());
-    }
-
-    @Override
-    public BuilderType mergeFrom(
-        final CodedInputStream input,
-        final ExtensionRegistryLite extensionRegistry)
-        throws IOException {
-      final UnknownFieldSet.Builder unknownFields =
-        UnknownFieldSet.newBuilder(getUnknownFields());
-      while (true) {
-        final int tag = input.readTag();
-        if (tag == 0) {
-          break;
-        }
-
-        MessageReflection.BuilderAdapter builderAdapter =
-            new MessageReflection.BuilderAdapter(this);
-        if (!MessageReflection.mergeFieldFrom(input, unknownFields,
-                                              extensionRegistry,
-                                              getDescriptorForType(),
-                                              builderAdapter,
-                                              tag)) {
-          // end group tag
-          break;
-        }
-      }
-      setUnknownFields(unknownFields.build());
-      return (BuilderType) this;
-    }
-
-    @Override
-    public BuilderType mergeUnknownFields(final UnknownFieldSet unknownFields) {
-      setUnknownFields(
-        UnknownFieldSet.newBuilder(getUnknownFields())
-                       .mergeFrom(unknownFields)
-                       .build());
-      return (BuilderType) this;
-    }
-
-    @Override
-    public Message.Builder getFieldBuilder(final FieldDescriptor field) {
-      throw new UnsupportedOperationException(
-          "getFieldBuilder() called on an unsupported message type.");
-    }
-
-    @Override
-    public Message.Builder getRepeatedFieldBuilder(final FieldDescriptor field, int index) {
-      throw new UnsupportedOperationException(
-          "getRepeatedFieldBuilder() called on an unsupported message type.");
-    }
-
-    @Override
-    public String toString() {
-      return TextFormat.printToString(this);
-    }
-
-    /**
-     * Construct an UninitializedMessageException reporting missing fields in
-     * the given message.
-     */
-    protected static UninitializedMessageException
-        newUninitializedMessageException(Message message) {
-      return new UninitializedMessageException(
-          MessageReflection.findMissingFields(message));
-    }
-
-    /**
-     * Used to support nested builders and called to mark this builder as clean.
-     * Clean builders will propagate the {@link BuilderParent#markDirty()} event
-     * to their parent builders, while dirty builders will not, as their parents
-     * should be dirty already.
-     *
-     * NOTE: Implementations that don't support nested builders don't need to
-     * override this method.
-     */
-    void markClean() {
-      throw new IllegalStateException("Should be overridden by subclasses.");
-    }
-
-    /**
-     * Used to support nested builders and called when this nested builder is
-     * no longer used by its parent builder and should release the reference
-     * to its parent builder.
-     *
-     * NOTE: Implementations that don't support nested builders don't need to
-     * override this method.
-     */
-    void dispose() {
-      throw new IllegalStateException("Should be overridden by subclasses.");
-    }
-
-    // ===============================================================
-    // The following definitions seem to be required in order to make javac
-    // not produce weird errors like:
-    //
-    // java/com/google/protobuf/DynamicMessage.java:203: types
-    //   com.google.protobuf.AbstractMessage.Builder<
-    //     com.google.protobuf.DynamicMessage.Builder> and
-    //   com.google.protobuf.AbstractMessage.Builder<
-    //     com.google.protobuf.DynamicMessage.Builder> are incompatible; both
-    //   define mergeFrom(com.google.protobuf.ByteString), but with unrelated
-    //   return types.
-    //
-    // Strangely, these lines are only needed if javac is invoked separately
-    // on AbstractMessage.java and AbstractMessageLite.java.  If javac is
-    // invoked on both simultaneously, it works.  (Or maybe the important
-    // point is whether or not DynamicMessage.java is compiled together with
-    // AbstractMessageLite.java -- not sure.)  I suspect this is a compiler
-    // bug.
-
-    @Override
-    public BuilderType mergeFrom(final ByteString data)
-        throws InvalidProtocolBufferException {
-      return (BuilderType) super.mergeFrom(data);
-    }
-
-    @Override
-    public BuilderType mergeFrom(
-        final ByteString data,
-        final ExtensionRegistryLite extensionRegistry)
-        throws InvalidProtocolBufferException {
-      return (BuilderType) super.mergeFrom(data, extensionRegistry);
-    }
-
-    @Override
-    public BuilderType mergeFrom(final byte[] data)
-        throws InvalidProtocolBufferException {
-      return (BuilderType) super.mergeFrom(data);
-    }
-
-    @Override
-    public BuilderType mergeFrom(
-        final byte[] data, final int off, final int len)
-        throws InvalidProtocolBufferException {
-      return (BuilderType) super.mergeFrom(data, off, len);
-    }
-
-    @Override
-    public BuilderType mergeFrom(
-        final byte[] data,
-        final ExtensionRegistryLite extensionRegistry)
-        throws InvalidProtocolBufferException {
-      return (BuilderType) super.mergeFrom(data, extensionRegistry);
-    }
-
-    @Override
-    public BuilderType mergeFrom(
-        final byte[] data, final int off, final int len,
-        final ExtensionRegistryLite extensionRegistry)
-        throws InvalidProtocolBufferException {
-      return (BuilderType) super.mergeFrom(data, off, len, extensionRegistry);
-    }
-
-    @Override
-    public BuilderType mergeFrom(final InputStream input)
-        throws IOException {
-      return (BuilderType) super.mergeFrom(input);
-    }
-
-    @Override
-    public BuilderType mergeFrom(
-        final InputStream input,
-        final ExtensionRegistryLite extensionRegistry)
-        throws IOException {
-      return (BuilderType) super.mergeFrom(input, extensionRegistry);
-    }
-
-    @Override
-    public boolean mergeDelimitedFrom(final InputStream input)
-        throws IOException {
-      return super.mergeDelimitedFrom(input);
-    }
-
-    @Override
-    public boolean mergeDelimitedFrom(
-        final InputStream input,
-        final ExtensionRegistryLite extensionRegistry)
-        throws IOException {
-      return super.mergeDelimitedFrom(input, extensionRegistry);
-    }
-  }
-
-  /**
-   * @deprecated from v3.0.0-beta-3+, for compatibility with v2.5.0 and v2.6.1
-   * generated code.
-   */
-  @Deprecated
-  protected static int hashLong(long n) {
-    return (int) (n ^ (n >>> 32));
-  }
-  //
-  /**
-   * @deprecated from v3.0.0-beta-3+, for compatibility with v2.5.0 and v2.6.1
-   * generated code.
-   */
-  @Deprecated
-  protected static int hashBoolean(boolean b) {
-    return b ? 1231 : 1237;
-  }
-  //
-  /**
-   * @deprecated from v3.0.0-beta-3+, for compatibility with v2.5.0 and v2.6.1
-   * generated code.
-   */
-  @Deprecated
-  protected static int hashEnum(EnumLite e) {
-    return e.getNumber();
-  }
-  //
-  /**
-   * @deprecated from v3.0.0-beta-3+, for compatibility with v2.5.0 and v2.6.1
-   * generated code.
-   */
-  @Deprecated
-  protected static int hashEnumList(List<? extends EnumLite> list) {
-    int hash = 1;
-    for (EnumLite e : list) {
-      hash = 31 * hash + hashEnum(e);
-    }
-    return hash;
-  }
-}
diff --git a/java/src/main/java/com/google/protobuf/AbstractMessageLite.java b/java/src/main/java/com/google/protobuf/AbstractMessageLite.java
deleted file mode 100755
index 046030f3..00000000
--- a/java/src/main/java/com/google/protobuf/AbstractMessageLite.java
+++ /dev/null
@@ -1,384 +0,0 @@
-// Protocol Buffers - Google's data interchange format
-// Copyright 2008 Google Inc.  All rights reserved.
-// https://developers.google.com/protocol-buffers/
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-package com.google.protobuf;
-
-import java.io.FilterInputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.util.Collection;
-
-/**
- * A partial implementation of the {@link MessageLite} interface which
- * implements as many methods of that interface as possible in terms of other
- * methods.
- *
- * @author kenton@google.com Kenton Varda
- */
-public abstract class AbstractMessageLite<
-    MessageType extends AbstractMessageLite<MessageType, BuilderType>,
-    BuilderType extends AbstractMessageLite.Builder<MessageType, BuilderType>>
-        implements MessageLite {
-  protected int memoizedHashCode = 0;
-
-  @Override
-  public ByteString toByteString() {
-    try {
-      final ByteString.CodedBuilder out =
-        ByteString.newCodedBuilder(getSerializedSize());
-      writeTo(out.getCodedOutput());
-      return out.build();
-    } catch (IOException e) {
-      throw new RuntimeException(getSerializingExceptionMessage("ByteString"), e);
-    }
-  }
-
-  @Override
-  public byte[] toByteArray() {
-    try {
-      final byte[] result = new byte[getSerializedSize()];
-      final CodedOutputStream output = CodedOutputStream.newInstance(result);
-      writeTo(output);
-      output.checkNoSpaceLeft();
-      return result;
-    } catch (IOException e) {
-      throw new RuntimeException(getSerializingExceptionMessage("byte array"), e);
-    }
-  }
-
-  @Override
-  public void writeTo(final OutputStream output) throws IOException {
-    final int bufferSize =
-        CodedOutputStream.computePreferredBufferSize(getSerializedSize());
-    final CodedOutputStream codedOutput =
-        CodedOutputStream.newInstance(output, bufferSize);
-    writeTo(codedOutput);
-    codedOutput.flush();
-  }
-
-  @Override
-  public void writeDelimitedTo(final OutputStream output) throws IOException {
-    final int serialized = getSerializedSize();
-    final int bufferSize = CodedOutputStream.computePreferredBufferSize(
-        CodedOutputStream.computeRawVarint32Size(serialized) + serialized);
-    final CodedOutputStream codedOutput =
-        CodedOutputStream.newInstance(output, bufferSize);
-    codedOutput.writeRawVarint32(serialized);
-    writeTo(codedOutput);
-    codedOutput.flush();
-  }
-
-
-  /**
-   * Package private helper method for AbstractParser to create
-   * UninitializedMessageException.
-   */
-  UninitializedMessageException newUninitializedMessageException() {
-    return new UninitializedMessageException(this);
-  }
-
-  private String getSerializingExceptionMessage(String target) {
-    return "Serializing " + getClass().getName() + " to a " + target
-        + " threw an IOException (should never happen).";
-  }
-
-  protected static void checkByteStringIsUtf8(ByteString byteString)
-      throws IllegalArgumentException {
-    if (!byteString.isValidUtf8()) {
-      throw new IllegalArgumentException("Byte string is not UTF-8.");
-    }
-  }
-
-  protected static <T> void addAll(final Iterable<T> values,
-      final Collection<? super T> list) {
-    Builder.addAll(values, list);
-  }
-
-  /**
-   * A partial implementation of the {@link Message.Builder} interface which
-   * implements as many methods of that interface as possible in terms of
-   * other methods.
-   */
-  @SuppressWarnings("unchecked")
-  public abstract static class Builder<
-      MessageType extends AbstractMessageLite<MessageType, BuilderType>,
-      BuilderType extends Builder<MessageType, BuilderType>>
-      implements MessageLite.Builder {
-    // The compiler produces an error if this is not declared explicitly.
-    @Override
-    public abstract BuilderType clone();
-
-    @Override
-    public BuilderType mergeFrom(final CodedInputStream input) throws IOException {
-      return mergeFrom(input, ExtensionRegistryLite.getEmptyRegistry());
-    }
-
-    // Re-defined here for return type covariance.
-    @Override
-    public abstract BuilderType mergeFrom(
-        final CodedInputStream input, final ExtensionRegistryLite extensionRegistry)
-        throws IOException;
-
-    @Override
-    public BuilderType mergeFrom(final ByteString data) throws InvalidProtocolBufferException {
-      try {
-        final CodedInputStream input = data.newCodedInput();
-        mergeFrom(input);
-        input.checkLastTagWas(0);
-        return (BuilderType) this;
-      } catch (InvalidProtocolBufferException e) {
-        throw e;
-      } catch (IOException e) {
-        throw new RuntimeException(getReadingExceptionMessage("ByteString"), e);
-      }
-    }
-
-    @Override
-    public BuilderType mergeFrom(
-        final ByteString data, final ExtensionRegistryLite extensionRegistry)
-        throws InvalidProtocolBufferException {
-      try {
-        final CodedInputStream input = data.newCodedInput();
-        mergeFrom(input, extensionRegistry);
-        input.checkLastTagWas(0);
-        return (BuilderType) this;
-      } catch (InvalidProtocolBufferException e) {
-        throw e;
-      } catch (IOException e) {
-        throw new RuntimeException(getReadingExceptionMessage("ByteString"), e);
-      }
-    }
-
-    @Override
-    public BuilderType mergeFrom(final byte[] data) throws InvalidProtocolBufferException {
-      return mergeFrom(data, 0, data.length);
-    }
-
-    @Override
-    public BuilderType mergeFrom(final byte[] data, final int off, final int len)
-        throws InvalidProtocolBufferException {
-      try {
-        final CodedInputStream input =
-            CodedInputStream.newInstance(data, off, len);
-        mergeFrom(input);
-        input.checkLastTagWas(0);
-        return (BuilderType) this;
-      } catch (InvalidProtocolBufferException e) {
-        throw e;
-      } catch (IOException e) {
-        throw new RuntimeException(getReadingExceptionMessage("byte array"), e);
-      }
-    }
-
-    @Override
-    public BuilderType mergeFrom(final byte[] data, final ExtensionRegistryLite extensionRegistry)
-        throws InvalidProtocolBufferException {
-      return mergeFrom(data, 0, data.length, extensionRegistry);
-    }
-
-    @Override
-    public BuilderType mergeFrom(
-        final byte[] data,
-        final int off,
-        final int len,
-        final ExtensionRegistryLite extensionRegistry)
-        throws InvalidProtocolBufferException {
-      try {
-        final CodedInputStream input =
-            CodedInputStream.newInstance(data, off, len);
-        mergeFrom(input, extensionRegistry);
-        input.checkLastTagWas(0);
-        return (BuilderType) this;
-      } catch (InvalidProtocolBufferException e) {
-        throw e;
-      } catch (IOException e) {
-        throw new RuntimeException(getReadingExceptionMessage("byte array"), e);
-      }
-    }
-
-    @Override
-    public BuilderType mergeFrom(final InputStream input) throws IOException {
-      final CodedInputStream codedInput = CodedInputStream.newInstance(input);
-      mergeFrom(codedInput);
-      codedInput.checkLastTagWas(0);
-      return (BuilderType) this;
-    }
-
-    @Override
-    public BuilderType mergeFrom(
-        final InputStream input, final ExtensionRegistryLite extensionRegistry) throws IOException {
-      final CodedInputStream codedInput = CodedInputStream.newInstance(input);
-      mergeFrom(codedInput, extensionRegistry);
-      codedInput.checkLastTagWas(0);
-      return (BuilderType) this;
-    }
-
-    /**
-     * An InputStream implementations which reads from some other InputStream
-     * but is limited to a particular number of bytes.  Used by
-     * mergeDelimitedFrom().  This is intentionally package-private so that
-     * UnknownFieldSet can share it.
-     */
-    static final class LimitedInputStream extends FilterInputStream {
-      private int limit;
-
-      LimitedInputStream(InputStream in, int limit) {
-        super(in);
-        this.limit = limit;
-      }
-
-      @Override
-      public int available() throws IOException {
-        return Math.min(super.available(), limit);
-      }
-
-      @Override
-      public int read() throws IOException {
-        if (limit <= 0) {
-          return -1;
-        }
-        final int result = super.read();
-        if (result >= 0) {
-          --limit;
-        }
-        return result;
-      }
-
-      @Override
-      public int read(final byte[] b, final int off, int len)
-                      throws IOException {
-        if (limit <= 0) {
-          return -1;
-        }
-        len = Math.min(len, limit);
-        final int result = super.read(b, off, len);
-        if (result >= 0) {
-          limit -= result;
-        }
-        return result;
-      }
-
-      @Override
-      public long skip(final long n) throws IOException {
-        final long result = super.skip(Math.min(n, limit));
-        if (result >= 0) {
-          limit -= result;
-        }
-        return result;
-      }
-    }
-
-    @Override
-    public boolean mergeDelimitedFrom(
-        final InputStream input, final ExtensionRegistryLite extensionRegistry) throws IOException {
-      final int firstByte = input.read();
-      if (firstByte == -1) {
-        return false;
-      }
-      final int size = CodedInputStream.readRawVarint32(firstByte, input);
-      final InputStream limitedInput = new LimitedInputStream(input, size);
-      mergeFrom(limitedInput, extensionRegistry);
-      return true;
-    }
-
-    @Override
-    public boolean mergeDelimitedFrom(final InputStream input) throws IOException {
-      return mergeDelimitedFrom(input,
-          ExtensionRegistryLite.getEmptyRegistry());
-    }
-
-    @Override
-    @SuppressWarnings("unchecked") // isInstance takes care of this
-    public BuilderType mergeFrom(final MessageLite other) {
-      if (!getDefaultInstanceForType().getClass().isInstance(other)) {
-        throw new IllegalArgumentException(
-            "mergeFrom(MessageLite) can only merge messages of the same type.");
-      }
-
-      return internalMergeFrom((MessageType) other);
-    }
-
-    protected abstract BuilderType internalMergeFrom(MessageType message);
-
-    private String getReadingExceptionMessage(String target) {
-      return "Reading " + getClass().getName() + " from a " + target
-          + " threw an IOException (should never happen).";
-    }
-
-    /**
-     * Construct an UninitializedMessageException reporting missing fields in
-     * the given message.
-     */
-    protected static UninitializedMessageException
-        newUninitializedMessageException(MessageLite message) {
-      return new UninitializedMessageException(message);
-    }
-
-    /**
-     * Adds the {@code values} to the {@code list}.  This is a helper method
-     * used by generated code.  Users should ignore it.
-     *
-     * @throws NullPointerException if {@code values} or any of the elements of
-     * {@code values} is null. When that happens, some elements of
-     * {@code values} may have already been added to the result {@code list}.
-     */
-    protected static <T> void addAll(final Iterable<T> values,
-                                     final Collection<? super T> list) {
-      if (values == null) {
-        throw new NullPointerException();
-      }
-      if (values instanceof LazyStringList) {
-        // For StringOrByteStringLists, check the underlying elements to avoid
-        // forcing conversions of ByteStrings to Strings.
-        checkForNullValues(((LazyStringList) values).getUnderlyingElements());
-        list.addAll((Collection<T>) values);
-      } else if (values instanceof Collection) {
-        checkForNullValues(values);
-        list.addAll((Collection<T>) values);
-      } else {
-        for (final T value : values) {
-          if (value == null) {
-            throw new NullPointerException();
-          }
-          list.add(value);
-        }
-      }
-    }
-
-    private static void checkForNullValues(final Iterable<?> values) {
-      for (final Object value : values) {
-        if (value == null) {
-          throw new NullPointerException();
-        }
-      }
-    }
-  }
-}
diff --git a/java/src/main/java/com/google/protobuf/AbstractParser.java b/java/src/main/java/com/google/protobuf/AbstractParser.java
deleted file mode 100755
index 66b0ee3b..00000000
--- a/java/src/main/java/com/google/protobuf/AbstractParser.java
+++ /dev/null
@@ -1,258 +0,0 @@
-// Protocol Buffers - Google's data interchange format
-// Copyright 2008 Google Inc.  All rights reserved.
-// https://developers.google.com/protocol-buffers/
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-package com.google.protobuf;
-
-import com.google.protobuf.AbstractMessageLite.Builder.LimitedInputStream;
-
-import java.io.IOException;
-import java.io.InputStream;
-
-/**
- * A partial implementation of the {@link Parser} interface which implements
- * as many methods of that interface as possible in terms of other methods.
- *
- * Note: This class implements all the convenience methods in the
- * {@link Parser} interface. See {@link Parser} for related javadocs.
- * Subclasses need to implement
- * {@link Parser#parsePartialFrom(CodedInputStream, ExtensionRegistryLite)}
- *
- * @author liujisi@google.com (Pherl Liu)
- */
-public abstract class AbstractParser<MessageType extends MessageLite>
-    implements Parser<MessageType> {
-  /**
-   * Creates an UninitializedMessageException for MessageType.
-   */
-  private UninitializedMessageException
-      newUninitializedMessageException(MessageType message) {
-    if (message instanceof AbstractMessageLite) {
-      return ((AbstractMessageLite) message).newUninitializedMessageException();
-    }
-    return new UninitializedMessageException(message);
-  }
-
-  /**
-   * Helper method to check if message is initialized.
-   *
-   * @throws InvalidProtocolBufferException if it is not initialized.
-   * @return The message to check.
-   */
-  private MessageType checkMessageInitialized(MessageType message)
-      throws InvalidProtocolBufferException {
-    if (message != null && !message.isInitialized()) {
-      throw newUninitializedMessageException(message)
-          .asInvalidProtocolBufferException()
-          .setUnfinishedMessage(message);
-    }
-    return message;
-  }
-
-  private static final ExtensionRegistryLite EMPTY_REGISTRY
-      = ExtensionRegistryLite.getEmptyRegistry();
-
-  @Override
-  public MessageType parsePartialFrom(CodedInputStream input)
-      throws InvalidProtocolBufferException {
-    return parsePartialFrom(input, EMPTY_REGISTRY);
-  }
-
-  @Override
-  public MessageType parseFrom(CodedInputStream input, ExtensionRegistryLite extensionRegistry)
-      throws InvalidProtocolBufferException {
-    return checkMessageInitialized(
-        parsePartialFrom(input, extensionRegistry));
-  }
-
-  @Override
-  public MessageType parseFrom(CodedInputStream input) throws InvalidProtocolBufferException {
-    return parseFrom(input, EMPTY_REGISTRY);
-  }
-
-  @Override
-  public MessageType parsePartialFrom(ByteString data, ExtensionRegistryLite extensionRegistry)
-      throws InvalidProtocolBufferException {
-    MessageType message;
-    try {
-      CodedInputStream input = data.newCodedInput();
-      message = parsePartialFrom(input, extensionRegistry);
-      try {
-        input.checkLastTagWas(0);
-      } catch (InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(message);
-      }
-      return message;
-    } catch (InvalidProtocolBufferException e) {
-      throw e;
-    }
-  }
-
-  @Override
-  public MessageType parsePartialFrom(ByteString data) throws InvalidProtocolBufferException {
-    return parsePartialFrom(data, EMPTY_REGISTRY);
-  }
-
-  @Override
-  public MessageType parseFrom(ByteString data, ExtensionRegistryLite extensionRegistry)
-      throws InvalidProtocolBufferException {
-    return checkMessageInitialized(parsePartialFrom(data, extensionRegistry));
-  }
-
-  @Override
-  public MessageType parseFrom(ByteString data) throws InvalidProtocolBufferException {
-    return parseFrom(data, EMPTY_REGISTRY);
-  }
-
-  @Override
-  public MessageType parsePartialFrom(
-      byte[] data, int off, int len, ExtensionRegistryLite extensionRegistry)
-      throws InvalidProtocolBufferException {
-    try {
-      CodedInputStream input = CodedInputStream.newInstance(data, off, len);
-      MessageType message = parsePartialFrom(input, extensionRegistry);
-      try {
-        input.checkLastTagWas(0);
-      } catch (InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(message);
-      }
-      return message;
-    } catch (InvalidProtocolBufferException e) {
-      throw e;
-    }
-  }
-
-  @Override
-  public MessageType parsePartialFrom(byte[] data, int off, int len)
-      throws InvalidProtocolBufferException {
-    return parsePartialFrom(data, off, len, EMPTY_REGISTRY);
-  }
-
-  @Override
-  public MessageType parsePartialFrom(byte[] data, ExtensionRegistryLite extensionRegistry)
-      throws InvalidProtocolBufferException {
-    return parsePartialFrom(data, 0, data.length, extensionRegistry);
-  }
-
-  @Override
-  public MessageType parsePartialFrom(byte[] data) throws InvalidProtocolBufferException {
-    return parsePartialFrom(data, 0, data.length, EMPTY_REGISTRY);
-  }
-
-  @Override
-  public MessageType parseFrom(
-      byte[] data, int off, int len, ExtensionRegistryLite extensionRegistry)
-      throws InvalidProtocolBufferException {
-    return checkMessageInitialized(
-        parsePartialFrom(data, off, len, extensionRegistry));
-  }
-
-  @Override
-  public MessageType parseFrom(byte[] data, int off, int len)
-      throws InvalidProtocolBufferException {
-    return parseFrom(data, off, len, EMPTY_REGISTRY);
-  }
-
-  @Override
-  public MessageType parseFrom(byte[] data, ExtensionRegistryLite extensionRegistry)
-      throws InvalidProtocolBufferException {
-    return parseFrom(data, 0, data.length, extensionRegistry);
-  }
-
-  @Override
-  public MessageType parseFrom(byte[] data) throws InvalidProtocolBufferException {
-    return parseFrom(data, EMPTY_REGISTRY);
-  }
-
-  @Override
-  public MessageType parsePartialFrom(InputStream input, ExtensionRegistryLite extensionRegistry)
-      throws InvalidProtocolBufferException {
-    CodedInputStream codedInput = CodedInputStream.newInstance(input);
-    MessageType message = parsePartialFrom(codedInput, extensionRegistry);
-    try {
-      codedInput.checkLastTagWas(0);
-    } catch (InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(message);
-    }
-    return message;
-  }
-
-  @Override
-  public MessageType parsePartialFrom(InputStream input) throws InvalidProtocolBufferException {
-    return parsePartialFrom(input, EMPTY_REGISTRY);
-  }
-
-  @Override
-  public MessageType parseFrom(InputStream input, ExtensionRegistryLite extensionRegistry)
-      throws InvalidProtocolBufferException {
-    return checkMessageInitialized(
-        parsePartialFrom(input, extensionRegistry));
-  }
-
-  @Override
-  public MessageType parseFrom(InputStream input) throws InvalidProtocolBufferException {
-    return parseFrom(input, EMPTY_REGISTRY);
-  }
-
-  @Override
-  public MessageType parsePartialDelimitedFrom(
-      InputStream input, ExtensionRegistryLite extensionRegistry)
-      throws InvalidProtocolBufferException {
-    int size;
-    try {
-      int firstByte = input.read();
-      if (firstByte == -1) {
-        return null;
-      }
-      size = CodedInputStream.readRawVarint32(firstByte, input);
-    } catch (IOException e) {
-      throw new InvalidProtocolBufferException(e.getMessage());
-    }
-    InputStream limitedInput = new LimitedInputStream(input, size);
-    return parsePartialFrom(limitedInput, extensionRegistry);
-  }
-
-  @Override
-  public MessageType parsePartialDelimitedFrom(InputStream input)
-      throws InvalidProtocolBufferException {
-    return parsePartialDelimitedFrom(input, EMPTY_REGISTRY);
-  }
-
-  @Override
-  public MessageType parseDelimitedFrom(InputStream input, ExtensionRegistryLite extensionRegistry)
-      throws InvalidProtocolBufferException {
-    return checkMessageInitialized(
-        parsePartialDelimitedFrom(input, extensionRegistry));
-  }
-
-  @Override
-  public MessageType parseDelimitedFrom(InputStream input) throws InvalidProtocolBufferException {
-    return parseDelimitedFrom(input, EMPTY_REGISTRY);
-  }
-}
diff --git a/java/src/main/java/com/google/protobuf/AbstractProtobufList.java b/java/src/main/java/com/google/protobuf/AbstractProtobufList.java
deleted file mode 100755
index b17db6e0..00000000
--- a/java/src/main/java/com/google/protobuf/AbstractProtobufList.java
+++ /dev/null
@@ -1,180 +0,0 @@
-// Protocol Buffers - Google's data interchange format
-// Copyright 2008 Google Inc.  All rights reserved.
-// https://developers.google.com/protocol-buffers/
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-package com.google.protobuf;
-
-import com.google.protobuf.Internal.ProtobufList;
-
-import java.util.AbstractList;
-import java.util.Collection;
-import java.util.List;
-import java.util.RandomAccess;
-
-/**
- * An abstract implementation of {@link ProtobufList} which manages mutability semantics. All mutate
- * methods must check if the list is mutable before proceeding. Subclasses must invoke
- * {@link #ensureIsMutable()} manually when overriding those methods.
- * <p>
- * This implementation assumes all subclasses are array based, supporting random access.
- */
-abstract class AbstractProtobufList<E> extends AbstractList<E> implements ProtobufList<E> {
-
-  protected static final int DEFAULT_CAPACITY = 10;
-
-  /**
-   * Whether or not this list is modifiable.
-   */
-  private boolean isMutable;
-
-  /**
-   * Constructs a mutable list by default.
-   */
-  AbstractProtobufList() {
-    isMutable = true;
-  }
-
-  @Override
-  public boolean equals(Object o) {
-    if (o == this) {
-      return true;
-    }
-    if (!(o instanceof List)) {
-      return false;
-    }
-    // Handle lists that do not support RandomAccess as efficiently as possible by using an iterator
-    // based approach in our super class. Otherwise our index based approach will avoid those
-    // allocations.
-    if (!(o instanceof RandomAccess)) {
-      return super.equals(o);
-    }
-
-    List<?> other = (List<?>) o;
-    final int size = size();
-    if (size != other.size()) {
-      return false;
-    }
-    for (int i = 0; i < size; i++) {
-      if (!get(i).equals(other.get(i))) {
-        return false;
-      }
-    }
-    return true;
-  }
-
-  @Override
-  public int hashCode() {
-    final int size = size();
-    int hashCode = 1;
-    for (int i = 0; i < size; i++) {
-      hashCode = (31 * hashCode) + get(i).hashCode();
-    }
-    return hashCode;
-  }
-
-  @Override
-  public boolean add(E e) {
-    ensureIsMutable();
-    return super.add(e);
-  }
-
-  @Override
-  public void add(int index, E element) {
-    ensureIsMutable();
-    super.add(index, element);
-  }
-
-  @Override
-  public boolean addAll(Collection<? extends E> c) {
-    ensureIsMutable();
-    return super.addAll(c);
-  }
-  
-  @Override
-  public boolean addAll(int index, Collection<? extends E> c) {
-    ensureIsMutable();
-    return super.addAll(index, c);
-  }
-
-  @Override
-  public void clear() {
-    ensureIsMutable();
-    super.clear();
-  }
-  
-  @Override
-  public boolean isModifiable() {
-    return isMutable;
-  }
-  
-  @Override
-  public final void makeImmutable() {
-    isMutable = false;
-  }
-  
-  @Override
-  public E remove(int index) {
-    ensureIsMutable();
-    return super.remove(index);
-  }
-  
-  @Override
-  public boolean remove(Object o) {
-    ensureIsMutable();
-    return super.remove(o);
-  }
-  
-  @Override
-  public boolean removeAll(Collection<?> c) {
-    ensureIsMutable();
-    return super.removeAll(c);
-  }
-  
-  @Override
-  public boolean retainAll(Collection<?> c) {
-    ensureIsMutable();
-    return super.retainAll(c);
-  }
-  
-  @Override
-  public E set(int index, E element) {
-    ensureIsMutable();
-    return super.set(index, element);
-  }
-  
-  /**
-   * Throws an {@link UnsupportedOperationException} if the list is immutable. Subclasses are
-   * responsible for invoking this method on mutate operations.
-   */
-  protected void ensureIsMutable() {
-    if (!isMutable) {
-      throw new UnsupportedOperationException();
-    }
-  }
-}
diff --git a/java/src/main/java/com/google/protobuf/BlockingRpcChannel.java b/java/src/main/java/com/google/protobuf/BlockingRpcChannel.java
deleted file mode 100755
index d535efb9..00000000
--- a/java/src/main/java/com/google/protobuf/BlockingRpcChannel.java
+++ /dev/null
@@ -1,51 +0,0 @@
-// Protocol Buffers - Google's data interchange format
-// Copyright 2008 Google Inc.  All rights reserved.
-// https://developers.google.com/protocol-buffers/
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-package com.google.protobuf;
-
-/**
- * <p>Abstract interface for a blocking RPC channel.  {@code BlockingRpcChannel}
- * is the blocking equivalent to {@link RpcChannel}.
- *
- * @author kenton@google.com Kenton Varda
- * @author cpovirk@google.com Chris Povirk
- */
-public interface BlockingRpcChannel {
-  /**
-   * Call the given method of the remote service and blocks until it returns.
-   * {@code callBlockingMethod()} is the blocking equivalent to
-   * {@link RpcChannel#callMethod}.
-   */
-  Message callBlockingMethod(
-      Descriptors.MethodDescriptor method,
-      RpcController controller,
-      Message request,
-      Message responsePrototype) throws ServiceException;
-}
diff --git a/java/src/main/java/com/google/protobuf/BlockingService.java b/java/src/main/java/com/google/protobuf/BlockingService.java
deleted file mode 100755
index d01f0b8f..00000000
--- a/java/src/main/java/com/google/protobuf/BlockingService.java
+++ /dev/null
@@ -1,64 +0,0 @@
-// Protocol Buffers - Google's data interchange format
-// Copyright 2008 Google Inc.  All rights reserved.
-// https://developers.google.com/protocol-buffers/
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-package com.google.protobuf;
-
-/**
- * Blocking equivalent to {@link Service}.
- *
- * @author kenton@google.com Kenton Varda
- * @author cpovirk@google.com Chris Povirk
- */
-public interface BlockingService {
-  /**
-   * Equivalent to {@link Service#getDescriptorForType}.
-   */
-  Descriptors.ServiceDescriptor getDescriptorForType();
-
-  /**
-   * Equivalent to {@link Service#callMethod}, except that
-   * {@code callBlockingMethod()} returns the result of the RPC or throws a
-   * {@link ServiceException} if there is a failure, rather than passing the
-   * information to a callback.
-   */
-  Message callBlockingMethod(Descriptors.MethodDescriptor method,
-                             RpcController controller,
-                             Message request) throws ServiceException;
-
-  /**
-   * Equivalent to {@link Service#getRequestPrototype}.
-   */
-  Message getRequestPrototype(Descriptors.MethodDescriptor method);
-
-  /**
-   * Equivalent to {@link Service#getResponsePrototype}.
-   */
-  Message getResponsePrototype(Descriptors.MethodDescriptor method);
-}
diff --git a/src/google/protobuf/wire_format_lite_inl.h b/src/google/protobuf/wire_format_lite_inl.h
index fbad965e..1963fac8 100644
--- a/src/google/protobuf/wire_format_lite_inl.h
+++ b/src/google/protobuf/wire_format_lite_inl.h
@@ -251,7 +251,7 @@ inline bool WireFormatLite::ReadRepeatedFixedSizePrimitive(
     uint32 tag,
     io::CodedInputStream* input,
     RepeatedField<CType>* values) {
-  GOOGLE_DCHECK_EQ(UInt32Size(tag), tag_size);
+  GOOGLE_DCHECK_EQ(UInt32Size(tag), static_cast<size_t>(tag_size));
   CType value;
   if (!ReadPrimitive<CType, DeclaredType>(input, &value))
     return false;
diff --git a/tests.sh b/tests.sh
index 9e95f2b7..2249f550 100755
--- a/tests.sh
+++ b/tests.sh
@@ -35,10 +35,14 @@ internal_build_cpp() {
 build_cpp() {
   internal_build_cpp
   make check -j2
-  cd conformance && make test_cpp && cd ..
+  pushd conformance
+  make test_cpp
+  popd
 
   # Verify benchmarking code can build successfully.
-  cd benchmarks && make && ./generate-datasets && cd ..
+  pushd benchmarks
+  make && ./generate-datasets
+  popd
 }
 
 build_cpp_distcheck() {