diff --git a/gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/BigQuery.java b/gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/BigQuery.java
index 986c595e350d..3acaacaf42e5 100644
--- a/gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/BigQuery.java
+++ b/gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/BigQuery.java
@@ -25,7 +25,7 @@
 import com.google.common.collect.Sets;
 import com.google.gcloud.Page;
 import com.google.gcloud.Service;
-import com.google.gcloud.spi.BigQueryRpc;
+import com.google.gcloud.bigquery.spi.BigQueryRpc;
 
 import java.util.List;
 import java.util.Set;
diff --git a/gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/BigQueryImpl.java b/gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/BigQueryImpl.java
index ce881c6ea079..27f4af5d5007 100644
--- a/gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/BigQueryImpl.java
+++ b/gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/BigQueryImpl.java
@@ -35,7 +35,7 @@
 import com.google.gcloud.PageImpl.NextPageFetcher;
 import com.google.gcloud.RetryHelper;
 import com.google.gcloud.bigquery.InsertAllRequest.RowToInsert;
-import com.google.gcloud.spi.BigQueryRpc;
+import com.google.gcloud.bigquery.spi.BigQueryRpc;
 
 import java.util.List;
 import java.util.Map;
diff --git a/gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/BigQueryOptions.java b/gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/BigQueryOptions.java
index 71d43cfbe565..d48cf646f349 100644
--- a/gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/BigQueryOptions.java
+++ b/gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/BigQueryOptions.java
@@ -18,9 +18,9 @@
 
 import com.google.common.collect.ImmutableSet;
 import com.google.gcloud.ServiceOptions;
-import com.google.gcloud.spi.BigQueryRpc;
-import com.google.gcloud.spi.BigQueryRpcFactory;
-import com.google.gcloud.spi.DefaultBigQueryRpc;
+import com.google.gcloud.bigquery.spi.BigQueryRpc;
+import com.google.gcloud.bigquery.spi.BigQueryRpcFactory;
+import com.google.gcloud.bigquery.spi.DefaultBigQueryRpc;
 
 import java.util.Set;
 
diff --git a/gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/Option.java b/gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/Option.java
index d88820fe5a29..3fdc27ecab99 100644
--- a/gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/Option.java
+++ b/gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/Option.java
@@ -19,7 +19,7 @@
 import static com.google.common.base.Preconditions.checkNotNull;
 
 import com.google.common.base.MoreObjects;
-import com.google.gcloud.spi.BigQueryRpc;
+import com.google.gcloud.bigquery.spi.BigQueryRpc;
 
 import java.io.Serializable;
 import java.util.Objects;
diff --git a/gcloud-java-bigquery/src/main/java/com/google/gcloud/spi/BigQueryRpc.java b/gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/spi/BigQueryRpc.java
similarity index 99%
rename from gcloud-java-bigquery/src/main/java/com/google/gcloud/spi/BigQueryRpc.java
rename to gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/spi/BigQueryRpc.java
index a1935e5ab136..d0b740e9e390 100644
--- a/gcloud-java-bigquery/src/main/java/com/google/gcloud/spi/BigQueryRpc.java
+++ b/gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/spi/BigQueryRpc.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package com.google.gcloud.spi;
+package com.google.gcloud.bigquery.spi;
 
 import com.google.api.services.bigquery.model.Dataset;
 import com.google.api.services.bigquery.model.GetQueryResultsResponse;
diff --git a/gcloud-java-bigquery/src/main/java/com/google/gcloud/spi/BigQueryRpcFactory.java b/gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/spi/BigQueryRpcFactory.java
similarity index 90%
rename from gcloud-java-bigquery/src/main/java/com/google/gcloud/spi/BigQueryRpcFactory.java
rename to gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/spi/BigQueryRpcFactory.java
index 2706868756a5..1323ec0624f4 100644
--- a/gcloud-java-bigquery/src/main/java/com/google/gcloud/spi/BigQueryRpcFactory.java
+++ b/gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/spi/BigQueryRpcFactory.java
@@ -14,9 +14,10 @@
  * limitations under the License.
  */
 
-package com.google.gcloud.spi;
+package com.google.gcloud.bigquery.spi;
 
 import com.google.gcloud.bigquery.BigQueryOptions;
+import com.google.gcloud.spi.ServiceRpcFactory;
 
 /**
  * An interface for BigQuery RPC factory.
diff --git a/gcloud-java-bigquery/src/main/java/com/google/gcloud/spi/DefaultBigQueryRpc.java b/gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/spi/DefaultBigQueryRpc.java
similarity index 94%
rename from gcloud-java-bigquery/src/main/java/com/google/gcloud/spi/DefaultBigQueryRpc.java
rename to gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/spi/DefaultBigQueryRpc.java
index a5c44129955a..71712bda7806 100644
--- a/gcloud-java-bigquery/src/main/java/com/google/gcloud/spi/DefaultBigQueryRpc.java
+++ b/gcloud-java-bigquery/src/main/java/com/google/gcloud/bigquery/spi/DefaultBigQueryRpc.java
@@ -12,14 +12,17 @@
  * the License.
  */
 
-package com.google.gcloud.spi;
+package com.google.gcloud.bigquery.spi;
 
-import static com.google.gcloud.spi.BigQueryRpc.Option.DELETE_CONTENTS;
-import static com.google.gcloud.spi.BigQueryRpc.Option.FIELDS;
-import static com.google.gcloud.spi.BigQueryRpc.Option.MAX_RESULTS;
-import static com.google.gcloud.spi.BigQueryRpc.Option.PAGE_TOKEN;
-import static com.google.gcloud.spi.BigQueryRpc.Option.START_INDEX;
-import static com.google.gcloud.spi.BigQueryRpc.Option.TIMEOUT;
+import static com.google.gcloud.bigquery.spi.BigQueryRpc.Option.ALL_DATASETS;
+import static com.google.gcloud.bigquery.spi.BigQueryRpc.Option.ALL_USERS;
+import static com.google.gcloud.bigquery.spi.BigQueryRpc.Option.DELETE_CONTENTS;
+import static com.google.gcloud.bigquery.spi.BigQueryRpc.Option.FIELDS;
+import static com.google.gcloud.bigquery.spi.BigQueryRpc.Option.MAX_RESULTS;
+import static com.google.gcloud.bigquery.spi.BigQueryRpc.Option.PAGE_TOKEN;
+import static com.google.gcloud.bigquery.spi.BigQueryRpc.Option.START_INDEX;
+import static com.google.gcloud.bigquery.spi.BigQueryRpc.Option.STATE_FILTER;
+import static com.google.gcloud.bigquery.spi.BigQueryRpc.Option.TIMEOUT;
 import static java.net.HttpURLConnection.HTTP_CREATED;
 import static java.net.HttpURLConnection.HTTP_NOT_FOUND;
 import static java.net.HttpURLConnection.HTTP_OK;
@@ -110,9 +113,10 @@ public Tuple<String, Iterable<Dataset>> listDatasets(Map<Option, ?> options) {
     try {
       DatasetList datasetsList = bigquery.datasets()
           .list(this.options.projectId())
-          .setAll(Option.ALL_DATASETS.getBoolean(options))
+          .setAll(ALL_DATASETS.getBoolean(options))
           .setMaxResults(MAX_RESULTS.getLong(options))
           .setPageToken(PAGE_TOKEN.getString(options))
+          .setPageToken(PAGE_TOKEN.getString(options))
           .execute();
       Iterable<DatasetList.Datasets> datasets = datasetsList.getDatasets();
       return Tuple.of(datasetsList.getNextPageToken(),
@@ -322,9 +326,9 @@ public Tuple<String, Iterable<Job>> listJobs(Map<Option, ?> options) {
     try {
       JobList jobsList = bigquery.jobs()
           .list(this.options.projectId())
-          .setAllUsers(Option.ALL_USERS.getBoolean(options))
-          .setFields(Option.FIELDS.getString(options))
-          .setStateFilter(Option.STATE_FILTER.<List<String>>get(options))
+          .setAllUsers(ALL_USERS.getBoolean(options))
+          .setFields(FIELDS.getString(options))
+          .setStateFilter(STATE_FILTER.<List<String>>get(options))
           .setMaxResults(MAX_RESULTS.getLong(options))
           .setPageToken(PAGE_TOKEN.getString(options))
           .setProjection(DEFAULT_PROJECTION)
diff --git a/gcloud-java-bigquery/src/test/java/com/google/gcloud/bigquery/BigQueryImplTest.java b/gcloud-java-bigquery/src/test/java/com/google/gcloud/bigquery/BigQueryImplTest.java
index 385ee6dcc8bd..305745e72da9 100644
--- a/gcloud-java-bigquery/src/test/java/com/google/gcloud/bigquery/BigQueryImplTest.java
+++ b/gcloud-java-bigquery/src/test/java/com/google/gcloud/bigquery/BigQueryImplTest.java
@@ -40,9 +40,9 @@
 import com.google.gcloud.RetryParams;
 import com.google.gcloud.WriteChannel;
 import com.google.gcloud.bigquery.InsertAllRequest.RowToInsert;
-import com.google.gcloud.spi.BigQueryRpc;
-import com.google.gcloud.spi.BigQueryRpc.Tuple;
-import com.google.gcloud.spi.BigQueryRpcFactory;
+import com.google.gcloud.bigquery.spi.BigQueryRpc;
+import com.google.gcloud.bigquery.spi.BigQueryRpc.Tuple;
+import com.google.gcloud.bigquery.spi.BigQueryRpcFactory;
 
 import org.easymock.Capture;
 import org.easymock.EasyMock;
diff --git a/gcloud-java-bigquery/src/test/java/com/google/gcloud/bigquery/OptionTest.java b/gcloud-java-bigquery/src/test/java/com/google/gcloud/bigquery/OptionTest.java
index 225fc284b203..2c89ececedb8 100644
--- a/gcloud-java-bigquery/src/test/java/com/google/gcloud/bigquery/OptionTest.java
+++ b/gcloud-java-bigquery/src/test/java/com/google/gcloud/bigquery/OptionTest.java
@@ -18,7 +18,7 @@
 
 import static org.junit.Assert.assertEquals;
 
-import com.google.gcloud.spi.BigQueryRpc;
+import com.google.gcloud.bigquery.spi.BigQueryRpc;
 
 import org.junit.Test;
 
diff --git a/gcloud-java-bigquery/src/test/java/com/google/gcloud/bigquery/TableDataWriteChannelTest.java b/gcloud-java-bigquery/src/test/java/com/google/gcloud/bigquery/TableDataWriteChannelTest.java
index 6b7edcd76db1..4c1be470ff57 100644
--- a/gcloud-java-bigquery/src/test/java/com/google/gcloud/bigquery/TableDataWriteChannelTest.java
+++ b/gcloud-java-bigquery/src/test/java/com/google/gcloud/bigquery/TableDataWriteChannelTest.java
@@ -32,8 +32,8 @@
 
 import com.google.gcloud.RestorableState;
 import com.google.gcloud.WriteChannel;
-import com.google.gcloud.spi.BigQueryRpc;
-import com.google.gcloud.spi.BigQueryRpcFactory;
+import com.google.gcloud.bigquery.spi.BigQueryRpc;
+import com.google.gcloud.bigquery.spi.BigQueryRpcFactory;
 
 import org.easymock.Capture;
 import org.easymock.CaptureType;
diff --git a/gcloud-java-contrib/gcloud-java-nio/pom.xml b/gcloud-java-contrib/gcloud-java-nio/pom.xml
index 3f06179f30b7..ed1b631ef931 100644
--- a/gcloud-java-contrib/gcloud-java-nio/pom.xml
+++ b/gcloud-java-contrib/gcloud-java-nio/pom.xml
@@ -11,7 +11,7 @@
   <parent>
     <groupId>com.google.gcloud</groupId>
     <artifactId>gcloud-java-contrib</artifactId>
-    <version>0.1.4-SNAPSHOT</version>
+    <version>0.1.6-SNAPSHOT</version>
   </parent>
   <properties>
     <site.installationModule>nio</site.installationModule>
diff --git a/gcloud-java-contrib/gcloud-java-nio/src/test/java/com/google/gcloud/storage/contrib/nio/CloudStorageReadChannelTest.java b/gcloud-java-contrib/gcloud-java-nio/src/test/java/com/google/gcloud/storage/contrib/nio/CloudStorageReadChannelTest.java
index c2c7d50aa68c..810e619b6277 100644
--- a/gcloud-java-contrib/gcloud-java-nio/src/test/java/com/google/gcloud/storage/contrib/nio/CloudStorageReadChannelTest.java
+++ b/gcloud-java-contrib/gcloud-java-nio/src/test/java/com/google/gcloud/storage/contrib/nio/CloudStorageReadChannelTest.java
@@ -11,6 +11,7 @@
 import static org.mockito.Mockito.when;
 
 import com.google.gcloud.ReadChannel;
+import com.google.gcloud.storage.Blob;
 import com.google.gcloud.storage.BlobId;
 import com.google.gcloud.storage.BlobInfo;
 import com.google.gcloud.storage.Storage;
@@ -39,11 +40,12 @@ public class CloudStorageReadChannelTest {
 
   private final Storage gcsStorage = mock(Storage.class);
   private final BlobId file = BlobId.of("blob", "attack");
-  private final BlobInfo metadata = BlobInfo.builder(file).size(42L).build();
+  private Blob metadata = mock(Blob.class);
   private final ReadChannel gcsChannel = mock(ReadChannel.class);
 
   @Before
   public void before() throws IOException {
+    when(metadata.size()).thenReturn(42L);
     when(gcsStorage.get(file)).thenReturn(metadata);
     when(gcsStorage.reader(eq(file))).thenReturn(gcsChannel);
     when(gcsChannel.isOpen()).thenReturn(true);
@@ -61,7 +63,6 @@ public void testRead() throws IOException {
     assertThat(chan.position()).isEqualTo(1L);
     verify(gcsChannel).read(any(ByteBuffer.class));
     verify(gcsChannel, times(3)).isOpen();
-    verifyNoMoreInteractions(gcsStorage, gcsChannel);
   }
 
   @Test
@@ -91,7 +92,6 @@ public void testIsOpen() throws IOException {
     assertThat(chan.isOpen()).isFalse();
     verify(gcsChannel, times(2)).isOpen();
     verify(gcsChannel).close();
-    verifyNoMoreInteractions(gcsStorage, gcsChannel);
   }
 
   @Test
@@ -99,7 +99,6 @@ public void testSize() throws IOException {
     assertThat(chan.size()).isEqualTo(42L);
     verify(gcsChannel).isOpen();
     verifyZeroInteractions(gcsChannel);
-    verifyNoMoreInteractions(gcsStorage);
   }
 
   @Test
@@ -139,6 +138,5 @@ public void testSetPosition() throws IOException {
     assertThat(chan.size()).isEqualTo(42L);
     verify(gcsChannel).seek(1);
     verify(gcsChannel, times(5)).isOpen();
-    verifyNoMoreInteractions(gcsStorage, gcsChannel);
   }
 }
diff --git a/gcloud-java-core/src/main/java/com/google/gcloud/package-info.java b/gcloud-java-core/src/main/java/com/google/gcloud/package-info.java
new file mode 100644
index 000000000000..d527640c99f9
--- /dev/null
+++ b/gcloud-java-core/src/main/java/com/google/gcloud/package-info.java
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2016 Google Inc. All Rights Reserved.
+ *
+ * Licensed 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.
+ */
+
+/**
+ * Core classes for the {@code gcloud-java} library.
+ */
+package com.google.gcloud;
diff --git a/gcloud-java-datastore/src/main/java/com/google/gcloud/datastore/DatastoreImpl.java b/gcloud-java-datastore/src/main/java/com/google/gcloud/datastore/DatastoreImpl.java
index 92d18ed4787c..49a5728a4da9 100644
--- a/gcloud-java-datastore/src/main/java/com/google/gcloud/datastore/DatastoreImpl.java
+++ b/gcloud-java-datastore/src/main/java/com/google/gcloud/datastore/DatastoreImpl.java
@@ -26,7 +26,7 @@
 import com.google.gcloud.RetryHelper;
 import com.google.gcloud.RetryHelper.RetryHelperException;
 import com.google.gcloud.RetryParams;
-import com.google.gcloud.spi.DatastoreRpc;
+import com.google.gcloud.datastore.spi.DatastoreRpc;
 import com.google.protobuf.ByteString;
 
 import java.util.Arrays;
diff --git a/gcloud-java-datastore/src/main/java/com/google/gcloud/datastore/DatastoreOptions.java b/gcloud-java-datastore/src/main/java/com/google/gcloud/datastore/DatastoreOptions.java
index 2ec0f2be8f2b..db1a5f800ce8 100644
--- a/gcloud-java-datastore/src/main/java/com/google/gcloud/datastore/DatastoreOptions.java
+++ b/gcloud-java-datastore/src/main/java/com/google/gcloud/datastore/DatastoreOptions.java
@@ -24,9 +24,9 @@
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Iterables;
 import com.google.gcloud.ServiceOptions;
-import com.google.gcloud.spi.DatastoreRpc;
-import com.google.gcloud.spi.DatastoreRpcFactory;
-import com.google.gcloud.spi.DefaultDatastoreRpc;
+import com.google.gcloud.datastore.spi.DatastoreRpc;
+import com.google.gcloud.datastore.spi.DatastoreRpcFactory;
+import com.google.gcloud.datastore.spi.DefaultDatastoreRpc;
 
 import java.lang.reflect.Method;
 import java.util.Iterator;
diff --git a/gcloud-java-datastore/src/main/java/com/google/gcloud/spi/DatastoreRpc.java b/gcloud-java-datastore/src/main/java/com/google/gcloud/datastore/spi/DatastoreRpc.java
similarity index 98%
rename from gcloud-java-datastore/src/main/java/com/google/gcloud/spi/DatastoreRpc.java
rename to gcloud-java-datastore/src/main/java/com/google/gcloud/datastore/spi/DatastoreRpc.java
index 4d4540c70196..002078550d1f 100644
--- a/gcloud-java-datastore/src/main/java/com/google/gcloud/spi/DatastoreRpc.java
+++ b/gcloud-java-datastore/src/main/java/com/google/gcloud/datastore/spi/DatastoreRpc.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package com.google.gcloud.spi;
+package com.google.gcloud.datastore.spi;
 
 import com.google.api.services.datastore.DatastoreV1.AllocateIdsRequest;
 import com.google.api.services.datastore.DatastoreV1.AllocateIdsResponse;
diff --git a/gcloud-java-datastore/src/main/java/com/google/gcloud/spi/DatastoreRpcFactory.java b/gcloud-java-datastore/src/main/java/com/google/gcloud/datastore/spi/DatastoreRpcFactory.java
similarity index 90%
rename from gcloud-java-datastore/src/main/java/com/google/gcloud/spi/DatastoreRpcFactory.java
rename to gcloud-java-datastore/src/main/java/com/google/gcloud/datastore/spi/DatastoreRpcFactory.java
index 1815dda30f5d..0979b2203037 100644
--- a/gcloud-java-datastore/src/main/java/com/google/gcloud/spi/DatastoreRpcFactory.java
+++ b/gcloud-java-datastore/src/main/java/com/google/gcloud/datastore/spi/DatastoreRpcFactory.java
@@ -14,9 +14,10 @@
  * limitations under the License.
  */
 
-package com.google.gcloud.spi;
+package com.google.gcloud.datastore.spi;
 
 import com.google.gcloud.datastore.DatastoreOptions;
+import com.google.gcloud.spi.ServiceRpcFactory;
 
 /**
  * An interface for Datastore RPC factory.
diff --git a/gcloud-java-datastore/src/main/java/com/google/gcloud/spi/DefaultDatastoreRpc.java b/gcloud-java-datastore/src/main/java/com/google/gcloud/datastore/spi/DefaultDatastoreRpc.java
similarity index 99%
rename from gcloud-java-datastore/src/main/java/com/google/gcloud/spi/DefaultDatastoreRpc.java
rename to gcloud-java-datastore/src/main/java/com/google/gcloud/datastore/spi/DefaultDatastoreRpc.java
index f679cc0d5826..093322fa4117 100644
--- a/gcloud-java-datastore/src/main/java/com/google/gcloud/spi/DefaultDatastoreRpc.java
+++ b/gcloud-java-datastore/src/main/java/com/google/gcloud/datastore/spi/DefaultDatastoreRpc.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package com.google.gcloud.spi;
+package com.google.gcloud.datastore.spi;
 
 import com.google.api.services.datastore.DatastoreV1.AllocateIdsRequest;
 import com.google.api.services.datastore.DatastoreV1.AllocateIdsResponse;
diff --git a/gcloud-java-datastore/src/test/java/com/google/gcloud/datastore/DatastoreOptionsTest.java b/gcloud-java-datastore/src/test/java/com/google/gcloud/datastore/DatastoreOptionsTest.java
index 284a9d322793..1d188c7f4e94 100644
--- a/gcloud-java-datastore/src/test/java/com/google/gcloud/datastore/DatastoreOptionsTest.java
+++ b/gcloud-java-datastore/src/test/java/com/google/gcloud/datastore/DatastoreOptionsTest.java
@@ -22,9 +22,9 @@
 import static org.junit.Assert.assertSame;
 import static org.junit.Assert.assertTrue;
 
+import com.google.gcloud.datastore.spi.DatastoreRpc;
+import com.google.gcloud.datastore.spi.DatastoreRpcFactory;
 import com.google.gcloud.datastore.testing.LocalGcdHelper;
-import com.google.gcloud.spi.DatastoreRpc;
-import com.google.gcloud.spi.DatastoreRpcFactory;
 
 import org.easymock.EasyMock;
 import org.junit.Before;
diff --git a/gcloud-java-datastore/src/test/java/com/google/gcloud/datastore/DatastoreTest.java b/gcloud-java-datastore/src/test/java/com/google/gcloud/datastore/DatastoreTest.java
index 5d106fc7d31d..e3829a2e71ce 100644
--- a/gcloud-java-datastore/src/test/java/com/google/gcloud/datastore/DatastoreTest.java
+++ b/gcloud-java-datastore/src/test/java/com/google/gcloud/datastore/DatastoreTest.java
@@ -38,9 +38,9 @@
 import com.google.gcloud.datastore.StructuredQuery.OrderBy;
 import com.google.gcloud.datastore.StructuredQuery.Projection;
 import com.google.gcloud.datastore.StructuredQuery.PropertyFilter;
+import com.google.gcloud.datastore.spi.DatastoreRpc;
+import com.google.gcloud.datastore.spi.DatastoreRpcFactory;
 import com.google.gcloud.datastore.testing.LocalGcdHelper;
-import com.google.gcloud.spi.DatastoreRpc;
-import com.google.gcloud.spi.DatastoreRpcFactory;
 import com.google.protobuf.ByteString;
 
 import org.easymock.EasyMock;
diff --git a/gcloud-java-examples/src/main/java/com/google/gcloud/examples/bigquery/BigQueryExample.java b/gcloud-java-examples/src/main/java/com/google/gcloud/examples/bigquery/BigQueryExample.java
index c8fbe7289f9c..fe27ee3cf63b 100644
--- a/gcloud-java-examples/src/main/java/com/google/gcloud/examples/bigquery/BigQueryExample.java
+++ b/gcloud-java-examples/src/main/java/com/google/gcloud/examples/bigquery/BigQueryExample.java
@@ -43,7 +43,7 @@
 import com.google.gcloud.bigquery.TableInfo;
 import com.google.gcloud.bigquery.ViewDefinition;
 import com.google.gcloud.bigquery.WriteChannelConfiguration;
-import com.google.gcloud.spi.BigQueryRpc.Tuple;
+import com.google.gcloud.bigquery.spi.BigQueryRpc.Tuple;
 
 import java.nio.channels.FileChannel;
 import java.nio.file.Paths;
diff --git a/gcloud-java-examples/src/main/java/com/google/gcloud/examples/storage/StorageExample.java b/gcloud-java-examples/src/main/java/com/google/gcloud/examples/storage/StorageExample.java
index e73cfc427129..a7260134202d 100644
--- a/gcloud-java-examples/src/main/java/com/google/gcloud/examples/storage/StorageExample.java
+++ b/gcloud-java-examples/src/main/java/com/google/gcloud/examples/storage/StorageExample.java
@@ -20,7 +20,6 @@
 import com.google.gcloud.AuthCredentials.ServiceAccountAuthCredentials;
 import com.google.gcloud.ReadChannel;
 import com.google.gcloud.WriteChannel;
-import com.google.gcloud.spi.StorageRpc.Tuple;
 import com.google.gcloud.storage.Blob;
 import com.google.gcloud.storage.BlobId;
 import com.google.gcloud.storage.BlobInfo;
@@ -31,6 +30,7 @@
 import com.google.gcloud.storage.Storage.CopyRequest;
 import com.google.gcloud.storage.Storage.SignUrlOption;
 import com.google.gcloud.storage.StorageOptions;
+import com.google.gcloud.storage.spi.StorageRpc.Tuple;
 
 import java.io.FileOutputStream;
 import java.io.IOException;
diff --git a/gcloud-java-resourcemanager/src/main/java/com/google/gcloud/resourcemanager/Option.java b/gcloud-java-resourcemanager/src/main/java/com/google/gcloud/resourcemanager/Option.java
index f48c057ba049..72d62d7fc224 100644
--- a/gcloud-java-resourcemanager/src/main/java/com/google/gcloud/resourcemanager/Option.java
+++ b/gcloud-java-resourcemanager/src/main/java/com/google/gcloud/resourcemanager/Option.java
@@ -19,7 +19,7 @@
 import static com.google.common.base.Preconditions.checkNotNull;
 
 import com.google.common.base.MoreObjects;
-import com.google.gcloud.spi.ResourceManagerRpc;
+import com.google.gcloud.resourcemanager.spi.ResourceManagerRpc;
 
 import java.io.Serializable;
 import java.util.Objects;
diff --git a/gcloud-java-resourcemanager/src/main/java/com/google/gcloud/resourcemanager/ResourceManager.java b/gcloud-java-resourcemanager/src/main/java/com/google/gcloud/resourcemanager/ResourceManager.java
index f9ddf6872414..a463937f875c 100644
--- a/gcloud-java-resourcemanager/src/main/java/com/google/gcloud/resourcemanager/ResourceManager.java
+++ b/gcloud-java-resourcemanager/src/main/java/com/google/gcloud/resourcemanager/ResourceManager.java
@@ -20,7 +20,7 @@
 import com.google.common.collect.Sets;
 import com.google.gcloud.Page;
 import com.google.gcloud.Service;
-import com.google.gcloud.spi.ResourceManagerRpc;
+import com.google.gcloud.resourcemanager.spi.ResourceManagerRpc;
 
 import java.util.Set;
 
diff --git a/gcloud-java-resourcemanager/src/main/java/com/google/gcloud/resourcemanager/ResourceManagerImpl.java b/gcloud-java-resourcemanager/src/main/java/com/google/gcloud/resourcemanager/ResourceManagerImpl.java
index 4176b4e610ba..fb699dcb06f0 100644
--- a/gcloud-java-resourcemanager/src/main/java/com/google/gcloud/resourcemanager/ResourceManagerImpl.java
+++ b/gcloud-java-resourcemanager/src/main/java/com/google/gcloud/resourcemanager/ResourceManagerImpl.java
@@ -29,8 +29,8 @@
 import com.google.gcloud.PageImpl;
 import com.google.gcloud.PageImpl.NextPageFetcher;
 import com.google.gcloud.RetryHelper.RetryHelperException;
-import com.google.gcloud.spi.ResourceManagerRpc;
-import com.google.gcloud.spi.ResourceManagerRpc.Tuple;
+import com.google.gcloud.resourcemanager.spi.ResourceManagerRpc;
+import com.google.gcloud.resourcemanager.spi.ResourceManagerRpc.Tuple;
 
 import java.util.Map;
 import java.util.concurrent.Callable;
diff --git a/gcloud-java-resourcemanager/src/main/java/com/google/gcloud/resourcemanager/ResourceManagerOptions.java b/gcloud-java-resourcemanager/src/main/java/com/google/gcloud/resourcemanager/ResourceManagerOptions.java
index 5c0c4baf1ecb..c744864147c2 100644
--- a/gcloud-java-resourcemanager/src/main/java/com/google/gcloud/resourcemanager/ResourceManagerOptions.java
+++ b/gcloud-java-resourcemanager/src/main/java/com/google/gcloud/resourcemanager/ResourceManagerOptions.java
@@ -18,9 +18,9 @@
 
 import com.google.common.collect.ImmutableSet;
 import com.google.gcloud.ServiceOptions;
-import com.google.gcloud.spi.DefaultResourceManagerRpc;
-import com.google.gcloud.spi.ResourceManagerRpc;
-import com.google.gcloud.spi.ResourceManagerRpcFactory;
+import com.google.gcloud.resourcemanager.spi.DefaultResourceManagerRpc;
+import com.google.gcloud.resourcemanager.spi.ResourceManagerRpc;
+import com.google.gcloud.resourcemanager.spi.ResourceManagerRpcFactory;
 
 import java.util.Set;
 
diff --git a/gcloud-java-resourcemanager/src/main/java/com/google/gcloud/spi/DefaultResourceManagerRpc.java b/gcloud-java-resourcemanager/src/main/java/com/google/gcloud/resourcemanager/spi/DefaultResourceManagerRpc.java
similarity index 89%
rename from gcloud-java-resourcemanager/src/main/java/com/google/gcloud/spi/DefaultResourceManagerRpc.java
rename to gcloud-java-resourcemanager/src/main/java/com/google/gcloud/resourcemanager/spi/DefaultResourceManagerRpc.java
index d30cd2df3627..2ef0d8c65ff2 100644
--- a/gcloud-java-resourcemanager/src/main/java/com/google/gcloud/spi/DefaultResourceManagerRpc.java
+++ b/gcloud-java-resourcemanager/src/main/java/com/google/gcloud/resourcemanager/spi/DefaultResourceManagerRpc.java
@@ -1,9 +1,9 @@
-package com.google.gcloud.spi;
+package com.google.gcloud.resourcemanager.spi;
 
-import static com.google.gcloud.spi.ResourceManagerRpc.Option.FIELDS;
-import static com.google.gcloud.spi.ResourceManagerRpc.Option.FILTER;
-import static com.google.gcloud.spi.ResourceManagerRpc.Option.PAGE_SIZE;
-import static com.google.gcloud.spi.ResourceManagerRpc.Option.PAGE_TOKEN;
+import static com.google.gcloud.resourcemanager.spi.ResourceManagerRpc.Option.FIELDS;
+import static com.google.gcloud.resourcemanager.spi.ResourceManagerRpc.Option.FILTER;
+import static com.google.gcloud.resourcemanager.spi.ResourceManagerRpc.Option.PAGE_SIZE;
+import static com.google.gcloud.resourcemanager.spi.ResourceManagerRpc.Option.PAGE_TOKEN;
 import static java.net.HttpURLConnection.HTTP_FORBIDDEN;
 import static java.net.HttpURLConnection.HTTP_NOT_FOUND;
 
diff --git a/gcloud-java-resourcemanager/src/main/java/com/google/gcloud/spi/ResourceManagerRpc.java b/gcloud-java-resourcemanager/src/main/java/com/google/gcloud/resourcemanager/spi/ResourceManagerRpc.java
similarity index 98%
rename from gcloud-java-resourcemanager/src/main/java/com/google/gcloud/spi/ResourceManagerRpc.java
rename to gcloud-java-resourcemanager/src/main/java/com/google/gcloud/resourcemanager/spi/ResourceManagerRpc.java
index e1d72a6a373e..54531edd5ed5 100644
--- a/gcloud-java-resourcemanager/src/main/java/com/google/gcloud/spi/ResourceManagerRpc.java
+++ b/gcloud-java-resourcemanager/src/main/java/com/google/gcloud/resourcemanager/spi/ResourceManagerRpc.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package com.google.gcloud.spi;
+package com.google.gcloud.resourcemanager.spi;
 
 import com.google.api.services.cloudresourcemanager.model.Project;
 import com.google.gcloud.resourcemanager.ResourceManagerException;
diff --git a/gcloud-java-resourcemanager/src/main/java/com/google/gcloud/spi/ResourceManagerRpcFactory.java b/gcloud-java-resourcemanager/src/main/java/com/google/gcloud/resourcemanager/spi/ResourceManagerRpcFactory.java
similarity index 90%
rename from gcloud-java-resourcemanager/src/main/java/com/google/gcloud/spi/ResourceManagerRpcFactory.java
rename to gcloud-java-resourcemanager/src/main/java/com/google/gcloud/resourcemanager/spi/ResourceManagerRpcFactory.java
index c2c607c0c205..4dbd1a00d4c7 100644
--- a/gcloud-java-resourcemanager/src/main/java/com/google/gcloud/spi/ResourceManagerRpcFactory.java
+++ b/gcloud-java-resourcemanager/src/main/java/com/google/gcloud/resourcemanager/spi/ResourceManagerRpcFactory.java
@@ -14,9 +14,10 @@
  * limitations under the License.
  */
 
-package com.google.gcloud.spi;
+package com.google.gcloud.resourcemanager.spi;
 
 import com.google.gcloud.resourcemanager.ResourceManagerOptions;
+import com.google.gcloud.spi.ServiceRpcFactory;
 
 /**
  * An interface for Resource Manager RPC factory.
diff --git a/gcloud-java-resourcemanager/src/test/java/com/google/gcloud/resourcemanager/LocalResourceManagerHelperTest.java b/gcloud-java-resourcemanager/src/test/java/com/google/gcloud/resourcemanager/LocalResourceManagerHelperTest.java
index a3418fff98ab..c9b2970a4efa 100644
--- a/gcloud-java-resourcemanager/src/test/java/com/google/gcloud/resourcemanager/LocalResourceManagerHelperTest.java
+++ b/gcloud-java-resourcemanager/src/test/java/com/google/gcloud/resourcemanager/LocalResourceManagerHelperTest.java
@@ -8,10 +8,10 @@
 import static org.junit.Assert.fail;
 
 import com.google.common.collect.ImmutableMap;
+import com.google.gcloud.resourcemanager.spi.DefaultResourceManagerRpc;
+import com.google.gcloud.resourcemanager.spi.ResourceManagerRpc;
+import com.google.gcloud.resourcemanager.spi.ResourceManagerRpc.Tuple;
 import com.google.gcloud.resourcemanager.testing.LocalResourceManagerHelper;
-import com.google.gcloud.spi.DefaultResourceManagerRpc;
-import com.google.gcloud.spi.ResourceManagerRpc;
-import com.google.gcloud.spi.ResourceManagerRpc.Tuple;
 
 import org.junit.AfterClass;
 import org.junit.Before;
diff --git a/gcloud-java-resourcemanager/src/test/java/com/google/gcloud/resourcemanager/ResourceManagerImplTest.java b/gcloud-java-resourcemanager/src/test/java/com/google/gcloud/resourcemanager/ResourceManagerImplTest.java
index 1bc233311a4d..5b172d6a070e 100644
--- a/gcloud-java-resourcemanager/src/test/java/com/google/gcloud/resourcemanager/ResourceManagerImplTest.java
+++ b/gcloud-java-resourcemanager/src/test/java/com/google/gcloud/resourcemanager/ResourceManagerImplTest.java
@@ -30,9 +30,9 @@
 import com.google.gcloud.resourcemanager.ResourceManager.ProjectField;
 import com.google.gcloud.resourcemanager.ResourceManager.ProjectGetOption;
 import com.google.gcloud.resourcemanager.ResourceManager.ProjectListOption;
+import com.google.gcloud.resourcemanager.spi.ResourceManagerRpc;
+import com.google.gcloud.resourcemanager.spi.ResourceManagerRpcFactory;
 import com.google.gcloud.resourcemanager.testing.LocalResourceManagerHelper;
-import com.google.gcloud.spi.ResourceManagerRpc;
-import com.google.gcloud.spi.ResourceManagerRpcFactory;
 
 import org.easymock.EasyMock;
 import org.junit.AfterClass;
diff --git a/gcloud-java-storage/src/main/java/com/google/gcloud/storage/Blob.java b/gcloud-java-storage/src/main/java/com/google/gcloud/storage/Blob.java
index 79ad3804faf0..dd5d165a72b6 100644
--- a/gcloud-java-storage/src/main/java/com/google/gcloud/storage/Blob.java
+++ b/gcloud-java-storage/src/main/java/com/google/gcloud/storage/Blob.java
@@ -24,12 +24,12 @@
 import com.google.common.base.Function;
 import com.google.gcloud.ReadChannel;
 import com.google.gcloud.WriteChannel;
-import com.google.gcloud.spi.StorageRpc;
-import com.google.gcloud.spi.StorageRpc.Tuple;
 import com.google.gcloud.storage.Storage.BlobTargetOption;
 import com.google.gcloud.storage.Storage.BlobWriteOption;
 import com.google.gcloud.storage.Storage.CopyRequest;
 import com.google.gcloud.storage.Storage.SignUrlOption;
+import com.google.gcloud.storage.spi.StorageRpc;
+import com.google.gcloud.storage.spi.StorageRpc.Tuple;
 
 import java.io.IOException;
 import java.io.ObjectInputStream;
@@ -49,7 +49,7 @@
  * {@link BlobInfo}.
  * </p>
  */
-public final class Blob extends BlobInfo {
+public class Blob extends BlobInfo {
 
   private static final long serialVersionUID = -6806832496717441434L;
 
@@ -482,13 +482,14 @@ public Builder toBuilder() {
   }
 
   @Override
-  public boolean equals(Object obj) {
-    return obj instanceof Blob && Objects.equals(toPb(), ((Blob) obj).toPb())
-        && Objects.equals(options, ((Blob) obj).options);
+  public final boolean equals(Object obj) {
+    return (this == obj) || (
+        obj instanceof Blob && Objects.equals(toPb(), ((Blob) obj).toPb())
+        && Objects.equals(options, ((Blob) obj).options));
   }
 
   @Override
-  public int hashCode() {
+  public final int hashCode() {
     return Objects.hash(super.hashCode(), options);
   }
 
diff --git a/gcloud-java-storage/src/main/java/com/google/gcloud/storage/BlobInfo.java b/gcloud-java-storage/src/main/java/com/google/gcloud/storage/BlobInfo.java
index 4b6d826a2643..cf509c8f0961 100644
--- a/gcloud-java-storage/src/main/java/com/google/gcloud/storage/BlobInfo.java
+++ b/gcloud-java-storage/src/main/java/com/google/gcloud/storage/BlobInfo.java
@@ -308,15 +308,8 @@ Builder owner(Acl.Entity owner) {
       return this;
     }
 
-<<<<<<< HEAD
-    /**
-     * Sets the blob's size in bytes.
-     */
-    public Builder size(Long size) {
-=======
     @Override
     Builder size(Long size) {
->>>>>>> master
       this.size = size;
       return this;
     }
diff --git a/gcloud-java-storage/src/main/java/com/google/gcloud/storage/BlobReadChannel.java b/gcloud-java-storage/src/main/java/com/google/gcloud/storage/BlobReadChannel.java
index 52b8c39321da..f9c6f912563d 100644
--- a/gcloud-java-storage/src/main/java/com/google/gcloud/storage/BlobReadChannel.java
+++ b/gcloud-java-storage/src/main/java/com/google/gcloud/storage/BlobReadChannel.java
@@ -23,8 +23,8 @@
 import com.google.gcloud.ReadChannel;
 import com.google.gcloud.RestorableState;
 import com.google.gcloud.RetryHelper;
-import com.google.gcloud.spi.StorageRpc;
-import com.google.gcloud.spi.StorageRpc.Tuple;
+import com.google.gcloud.storage.spi.StorageRpc;
+import com.google.gcloud.storage.spi.StorageRpc.Tuple;
 
 import java.io.IOException;
 import java.io.Serializable;
diff --git a/gcloud-java-storage/src/main/java/com/google/gcloud/storage/BlobWriteChannel.java b/gcloud-java-storage/src/main/java/com/google/gcloud/storage/BlobWriteChannel.java
index d1d12ec77638..30b0ec870f51 100644
--- a/gcloud-java-storage/src/main/java/com/google/gcloud/storage/BlobWriteChannel.java
+++ b/gcloud-java-storage/src/main/java/com/google/gcloud/storage/BlobWriteChannel.java
@@ -23,7 +23,7 @@
 import com.google.gcloud.RestorableState;
 import com.google.gcloud.RetryHelper;
 import com.google.gcloud.WriteChannel;
-import com.google.gcloud.spi.StorageRpc;
+import com.google.gcloud.storage.spi.StorageRpc;
 
 import java.util.Map;
 
diff --git a/gcloud-java-storage/src/main/java/com/google/gcloud/storage/Bucket.java b/gcloud-java-storage/src/main/java/com/google/gcloud/storage/Bucket.java
index d318626f4207..5df305ff371c 100644
--- a/gcloud-java-storage/src/main/java/com/google/gcloud/storage/Bucket.java
+++ b/gcloud-java-storage/src/main/java/com/google/gcloud/storage/Bucket.java
@@ -26,9 +26,9 @@
 import com.google.common.collect.Lists;
 import com.google.common.collect.Sets;
 import com.google.gcloud.Page;
-import com.google.gcloud.spi.StorageRpc;
 import com.google.gcloud.storage.Storage.BlobGetOption;
 import com.google.gcloud.storage.Storage.BucketTargetOption;
+import com.google.gcloud.storage.spi.StorageRpc;
 
 import java.io.IOException;
 import java.io.InputStream;
diff --git a/gcloud-java-storage/src/main/java/com/google/gcloud/storage/CopyWriter.java b/gcloud-java-storage/src/main/java/com/google/gcloud/storage/CopyWriter.java
index 7eb91d0910a2..62b39e005369 100644
--- a/gcloud-java-storage/src/main/java/com/google/gcloud/storage/CopyWriter.java
+++ b/gcloud-java-storage/src/main/java/com/google/gcloud/storage/CopyWriter.java
@@ -22,9 +22,9 @@
 import com.google.gcloud.Restorable;
 import com.google.gcloud.RestorableState;
 import com.google.gcloud.RetryHelper;
-import com.google.gcloud.spi.StorageRpc;
-import com.google.gcloud.spi.StorageRpc.RewriteRequest;
-import com.google.gcloud.spi.StorageRpc.RewriteResponse;
+import com.google.gcloud.storage.spi.StorageRpc;
+import com.google.gcloud.storage.spi.StorageRpc.RewriteRequest;
+import com.google.gcloud.storage.spi.StorageRpc.RewriteResponse;
 
 import java.io.Serializable;
 import java.util.Map;
diff --git a/gcloud-java-storage/src/main/java/com/google/gcloud/storage/Option.java b/gcloud-java-storage/src/main/java/com/google/gcloud/storage/Option.java
index 2ec8426bfa9f..65c55da7efc8 100644
--- a/gcloud-java-storage/src/main/java/com/google/gcloud/storage/Option.java
+++ b/gcloud-java-storage/src/main/java/com/google/gcloud/storage/Option.java
@@ -19,7 +19,7 @@
 import static com.google.common.base.Preconditions.checkNotNull;
 
 import com.google.common.base.MoreObjects;
-import com.google.gcloud.spi.StorageRpc;
+import com.google.gcloud.storage.spi.StorageRpc;
 
 import java.io.Serializable;
 import java.util.Objects;
diff --git a/gcloud-java-storage/src/main/java/com/google/gcloud/storage/Storage.java b/gcloud-java-storage/src/main/java/com/google/gcloud/storage/Storage.java
index 0ee18f541284..6b2e9266f24b 100644
--- a/gcloud-java-storage/src/main/java/com/google/gcloud/storage/Storage.java
+++ b/gcloud-java-storage/src/main/java/com/google/gcloud/storage/Storage.java
@@ -29,8 +29,8 @@
 import com.google.gcloud.ReadChannel;
 import com.google.gcloud.Service;
 import com.google.gcloud.WriteChannel;
-import com.google.gcloud.spi.StorageRpc;
-import com.google.gcloud.spi.StorageRpc.Tuple;
+import com.google.gcloud.storage.spi.StorageRpc;
+import com.google.gcloud.storage.spi.StorageRpc.Tuple;
 
 import java.io.InputStream;
 import java.io.Serializable;
diff --git a/gcloud-java-storage/src/main/java/com/google/gcloud/storage/StorageImpl.java b/gcloud-java-storage/src/main/java/com/google/gcloud/storage/StorageImpl.java
index 788072905871..d58c9e43aea9 100644
--- a/gcloud-java-storage/src/main/java/com/google/gcloud/storage/StorageImpl.java
+++ b/gcloud-java-storage/src/main/java/com/google/gcloud/storage/StorageImpl.java
@@ -19,15 +19,15 @@
 import static com.google.common.base.MoreObjects.firstNonNull;
 import static com.google.common.base.Preconditions.checkArgument;
 import static com.google.gcloud.RetryHelper.runWithRetries;
-import static com.google.gcloud.spi.StorageRpc.Option.DELIMITER;
-import static com.google.gcloud.spi.StorageRpc.Option.IF_GENERATION_MATCH;
-import static com.google.gcloud.spi.StorageRpc.Option.IF_GENERATION_NOT_MATCH;
-import static com.google.gcloud.spi.StorageRpc.Option.IF_METAGENERATION_MATCH;
-import static com.google.gcloud.spi.StorageRpc.Option.IF_METAGENERATION_NOT_MATCH;
-import static com.google.gcloud.spi.StorageRpc.Option.IF_SOURCE_GENERATION_MATCH;
-import static com.google.gcloud.spi.StorageRpc.Option.IF_SOURCE_GENERATION_NOT_MATCH;
-import static com.google.gcloud.spi.StorageRpc.Option.IF_SOURCE_METAGENERATION_MATCH;
-import static com.google.gcloud.spi.StorageRpc.Option.IF_SOURCE_METAGENERATION_NOT_MATCH;
+import static com.google.gcloud.storage.spi.StorageRpc.Option.DELIMITER;
+import static com.google.gcloud.storage.spi.StorageRpc.Option.IF_GENERATION_MATCH;
+import static com.google.gcloud.storage.spi.StorageRpc.Option.IF_GENERATION_NOT_MATCH;
+import static com.google.gcloud.storage.spi.StorageRpc.Option.IF_METAGENERATION_MATCH;
+import static com.google.gcloud.storage.spi.StorageRpc.Option.IF_METAGENERATION_NOT_MATCH;
+import static com.google.gcloud.storage.spi.StorageRpc.Option.IF_SOURCE_GENERATION_MATCH;
+import static com.google.gcloud.storage.spi.StorageRpc.Option.IF_SOURCE_GENERATION_NOT_MATCH;
+import static com.google.gcloud.storage.spi.StorageRpc.Option.IF_SOURCE_METAGENERATION_MATCH;
+import static com.google.gcloud.storage.spi.StorageRpc.Option.IF_SOURCE_METAGENERATION_NOT_MATCH;
 import static java.nio.charset.StandardCharsets.UTF_8;
 
 import com.google.api.services.storage.model.StorageObject;
@@ -48,9 +48,9 @@
 import com.google.gcloud.PageImpl.NextPageFetcher;
 import com.google.gcloud.ReadChannel;
 import com.google.gcloud.RetryHelper.RetryHelperException;
-import com.google.gcloud.spi.StorageRpc;
-import com.google.gcloud.spi.StorageRpc.RewriteResponse;
-import com.google.gcloud.spi.StorageRpc.Tuple;
+import com.google.gcloud.storage.spi.StorageRpc;
+import com.google.gcloud.storage.spi.StorageRpc.RewriteResponse;
+import com.google.gcloud.storage.spi.StorageRpc.Tuple;
 
 import java.io.ByteArrayInputStream;
 import java.io.InputStream;
diff --git a/gcloud-java-storage/src/main/java/com/google/gcloud/storage/StorageOptions.java b/gcloud-java-storage/src/main/java/com/google/gcloud/storage/StorageOptions.java
index 86ce18eb71ec..e7e1c2778fa9 100644
--- a/gcloud-java-storage/src/main/java/com/google/gcloud/storage/StorageOptions.java
+++ b/gcloud-java-storage/src/main/java/com/google/gcloud/storage/StorageOptions.java
@@ -18,9 +18,9 @@
 
 import com.google.common.collect.ImmutableSet;
 import com.google.gcloud.ServiceOptions;
-import com.google.gcloud.spi.DefaultStorageRpc;
-import com.google.gcloud.spi.StorageRpc;
-import com.google.gcloud.spi.StorageRpcFactory;
+import com.google.gcloud.storage.spi.DefaultStorageRpc;
+import com.google.gcloud.storage.spi.StorageRpc;
+import com.google.gcloud.storage.spi.StorageRpcFactory;
 
 import java.util.Set;
 
diff --git a/gcloud-java-storage/src/main/java/com/google/gcloud/spi/DefaultStorageRpc.java b/gcloud-java-storage/src/main/java/com/google/gcloud/storage/spi/DefaultStorageRpc.java
similarity index 94%
rename from gcloud-java-storage/src/main/java/com/google/gcloud/spi/DefaultStorageRpc.java
rename to gcloud-java-storage/src/main/java/com/google/gcloud/storage/spi/DefaultStorageRpc.java
index ec4447d406cb..aa6085e161ed 100644
--- a/gcloud-java-storage/src/main/java/com/google/gcloud/spi/DefaultStorageRpc.java
+++ b/gcloud-java-storage/src/main/java/com/google/gcloud/storage/spi/DefaultStorageRpc.java
@@ -12,25 +12,25 @@
  * the License.
  */
 
-package com.google.gcloud.spi;
+package com.google.gcloud.storage.spi;
 
 import static com.google.common.base.MoreObjects.firstNonNull;
-import static com.google.gcloud.spi.StorageRpc.Option.DELIMITER;
-import static com.google.gcloud.spi.StorageRpc.Option.FIELDS;
-import static com.google.gcloud.spi.StorageRpc.Option.IF_GENERATION_MATCH;
-import static com.google.gcloud.spi.StorageRpc.Option.IF_GENERATION_NOT_MATCH;
-import static com.google.gcloud.spi.StorageRpc.Option.IF_METAGENERATION_MATCH;
-import static com.google.gcloud.spi.StorageRpc.Option.IF_METAGENERATION_NOT_MATCH;
-import static com.google.gcloud.spi.StorageRpc.Option.IF_SOURCE_GENERATION_MATCH;
-import static com.google.gcloud.spi.StorageRpc.Option.IF_SOURCE_GENERATION_NOT_MATCH;
-import static com.google.gcloud.spi.StorageRpc.Option.IF_SOURCE_METAGENERATION_MATCH;
-import static com.google.gcloud.spi.StorageRpc.Option.IF_SOURCE_METAGENERATION_NOT_MATCH;
-import static com.google.gcloud.spi.StorageRpc.Option.MAX_RESULTS;
-import static com.google.gcloud.spi.StorageRpc.Option.PAGE_TOKEN;
-import static com.google.gcloud.spi.StorageRpc.Option.PREDEFINED_ACL;
-import static com.google.gcloud.spi.StorageRpc.Option.PREDEFINED_DEFAULT_OBJECT_ACL;
-import static com.google.gcloud.spi.StorageRpc.Option.PREFIX;
-import static com.google.gcloud.spi.StorageRpc.Option.VERSIONS;
+import static com.google.gcloud.storage.spi.StorageRpc.Option.DELIMITER;
+import static com.google.gcloud.storage.spi.StorageRpc.Option.FIELDS;
+import static com.google.gcloud.storage.spi.StorageRpc.Option.IF_GENERATION_MATCH;
+import static com.google.gcloud.storage.spi.StorageRpc.Option.IF_GENERATION_NOT_MATCH;
+import static com.google.gcloud.storage.spi.StorageRpc.Option.IF_METAGENERATION_MATCH;
+import static com.google.gcloud.storage.spi.StorageRpc.Option.IF_METAGENERATION_NOT_MATCH;
+import static com.google.gcloud.storage.spi.StorageRpc.Option.IF_SOURCE_GENERATION_MATCH;
+import static com.google.gcloud.storage.spi.StorageRpc.Option.IF_SOURCE_GENERATION_NOT_MATCH;
+import static com.google.gcloud.storage.spi.StorageRpc.Option.IF_SOURCE_METAGENERATION_MATCH;
+import static com.google.gcloud.storage.spi.StorageRpc.Option.IF_SOURCE_METAGENERATION_NOT_MATCH;
+import static com.google.gcloud.storage.spi.StorageRpc.Option.MAX_RESULTS;
+import static com.google.gcloud.storage.spi.StorageRpc.Option.PAGE_TOKEN;
+import static com.google.gcloud.storage.spi.StorageRpc.Option.PREDEFINED_ACL;
+import static com.google.gcloud.storage.spi.StorageRpc.Option.PREDEFINED_DEFAULT_OBJECT_ACL;
+import static com.google.gcloud.storage.spi.StorageRpc.Option.PREFIX;
+import static com.google.gcloud.storage.spi.StorageRpc.Option.VERSIONS;
 import static java.net.HttpURLConnection.HTTP_NOT_FOUND;
 import static javax.servlet.http.HttpServletResponse.SC_REQUESTED_RANGE_NOT_SATISFIABLE;
 
diff --git a/gcloud-java-storage/src/main/java/com/google/gcloud/spi/StorageRpc.java b/gcloud-java-storage/src/main/java/com/google/gcloud/storage/spi/StorageRpc.java
similarity index 99%
rename from gcloud-java-storage/src/main/java/com/google/gcloud/spi/StorageRpc.java
rename to gcloud-java-storage/src/main/java/com/google/gcloud/storage/spi/StorageRpc.java
index ab4a7a9d0acb..d239a475a6dd 100644
--- a/gcloud-java-storage/src/main/java/com/google/gcloud/spi/StorageRpc.java
+++ b/gcloud-java-storage/src/main/java/com/google/gcloud/storage/spi/StorageRpc.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package com.google.gcloud.spi;
+package com.google.gcloud.storage.spi;
 
 import static com.google.common.base.MoreObjects.firstNonNull;
 
diff --git a/gcloud-java-storage/src/main/java/com/google/gcloud/spi/StorageRpcFactory.java b/gcloud-java-storage/src/main/java/com/google/gcloud/storage/spi/StorageRpcFactory.java
similarity index 91%
rename from gcloud-java-storage/src/main/java/com/google/gcloud/spi/StorageRpcFactory.java
rename to gcloud-java-storage/src/main/java/com/google/gcloud/storage/spi/StorageRpcFactory.java
index f4959d617d17..19b98e6273db 100644
--- a/gcloud-java-storage/src/main/java/com/google/gcloud/spi/StorageRpcFactory.java
+++ b/gcloud-java-storage/src/main/java/com/google/gcloud/storage/spi/StorageRpcFactory.java
@@ -14,8 +14,9 @@
  * limitations under the License.
  */
 
-package com.google.gcloud.spi;
+package com.google.gcloud.storage.spi;
 
+import com.google.gcloud.spi.ServiceRpcFactory;
 import com.google.gcloud.storage.StorageOptions;
 
 /**
diff --git a/gcloud-java-storage/src/main/java/com/google/gcloud/storage/testing/FakeStorageRpc.java b/gcloud-java-storage/src/main/java/com/google/gcloud/storage/testing/FakeStorageRpc.java
index a04e8b73c1fd..3c5911b9f617 100644
--- a/gcloud-java-storage/src/main/java/com/google/gcloud/storage/testing/FakeStorageRpc.java
+++ b/gcloud-java-storage/src/main/java/com/google/gcloud/storage/testing/FakeStorageRpc.java
@@ -2,7 +2,7 @@
 
 import com.google.api.services.storage.model.Bucket;
 import com.google.api.services.storage.model.StorageObject;
-import com.google.gcloud.spi.StorageRpc;
+import com.google.gcloud.storage.spi.StorageRpc;
 import com.google.gcloud.storage.Storage;
 import com.google.gcloud.storage.StorageException;
 
diff --git a/gcloud-java-storage/src/main/java/com/google/gcloud/storage/testing/LocalGcsHelper.java b/gcloud-java-storage/src/main/java/com/google/gcloud/storage/testing/LocalGcsHelper.java
index 1c3a64452441..7749ad160096 100644
--- a/gcloud-java-storage/src/main/java/com/google/gcloud/storage/testing/LocalGcsHelper.java
+++ b/gcloud-java-storage/src/main/java/com/google/gcloud/storage/testing/LocalGcsHelper.java
@@ -17,7 +17,7 @@
 package com.google.gcloud.storage.testing;
 
 import com.google.gcloud.spi.ServiceRpcFactory;
-import com.google.gcloud.spi.StorageRpc;
+import com.google.gcloud.storage.spi.StorageRpc;
 import com.google.gcloud.storage.StorageOptions;
 
 /**
diff --git a/gcloud-java-storage/src/test/java/com/google/gcloud/storage/BlobReadChannelTest.java b/gcloud-java-storage/src/test/java/com/google/gcloud/storage/BlobReadChannelTest.java
index 5dc947df51f8..1b0f36a864a2 100644
--- a/gcloud-java-storage/src/test/java/com/google/gcloud/storage/BlobReadChannelTest.java
+++ b/gcloud-java-storage/src/test/java/com/google/gcloud/storage/BlobReadChannelTest.java
@@ -30,8 +30,8 @@
 import com.google.gcloud.ReadChannel;
 import com.google.gcloud.RestorableState;
 import com.google.gcloud.RetryParams;
-import com.google.gcloud.spi.StorageRpc;
-import com.google.gcloud.spi.StorageRpcFactory;
+import com.google.gcloud.storage.spi.StorageRpc;
+import com.google.gcloud.storage.spi.StorageRpcFactory;
 
 import org.junit.After;
 import org.junit.Before;
diff --git a/gcloud-java-storage/src/test/java/com/google/gcloud/storage/BlobWriteChannelTest.java b/gcloud-java-storage/src/test/java/com/google/gcloud/storage/BlobWriteChannelTest.java
index e499f6b9de52..18ec64a9575f 100644
--- a/gcloud-java-storage/src/test/java/com/google/gcloud/storage/BlobWriteChannelTest.java
+++ b/gcloud-java-storage/src/test/java/com/google/gcloud/storage/BlobWriteChannelTest.java
@@ -34,8 +34,8 @@
 import com.google.gcloud.RestorableState;
 import com.google.gcloud.RetryParams;
 import com.google.gcloud.WriteChannel;
-import com.google.gcloud.spi.StorageRpc;
-import com.google.gcloud.spi.StorageRpcFactory;
+import com.google.gcloud.storage.spi.StorageRpc;
+import com.google.gcloud.storage.spi.StorageRpcFactory;
 
 import org.easymock.Capture;
 import org.easymock.CaptureType;
diff --git a/gcloud-java-storage/src/test/java/com/google/gcloud/storage/CopyWriterTest.java b/gcloud-java-storage/src/test/java/com/google/gcloud/storage/CopyWriterTest.java
index 1b1ffd987de6..ad4a04c34127 100644
--- a/gcloud-java-storage/src/test/java/com/google/gcloud/storage/CopyWriterTest.java
+++ b/gcloud-java-storage/src/test/java/com/google/gcloud/storage/CopyWriterTest.java
@@ -27,10 +27,10 @@
 import com.google.common.collect.ImmutableMap;
 import com.google.gcloud.RestorableState;
 import com.google.gcloud.RetryParams;
-import com.google.gcloud.spi.StorageRpc;
-import com.google.gcloud.spi.StorageRpc.RewriteRequest;
-import com.google.gcloud.spi.StorageRpc.RewriteResponse;
-import com.google.gcloud.spi.StorageRpcFactory;
+import com.google.gcloud.storage.spi.StorageRpc;
+import com.google.gcloud.storage.spi.StorageRpc.RewriteRequest;
+import com.google.gcloud.storage.spi.StorageRpc.RewriteResponse;
+import com.google.gcloud.storage.spi.StorageRpcFactory;
 
 import org.easymock.EasyMock;
 import org.junit.After;
diff --git a/gcloud-java-storage/src/test/java/com/google/gcloud/storage/OptionTest.java b/gcloud-java-storage/src/test/java/com/google/gcloud/storage/OptionTest.java
index 2703ddb401c5..5924174ab138 100644
--- a/gcloud-java-storage/src/test/java/com/google/gcloud/storage/OptionTest.java
+++ b/gcloud-java-storage/src/test/java/com/google/gcloud/storage/OptionTest.java
@@ -18,7 +18,7 @@
 
 import static org.junit.Assert.assertEquals;
 
-import com.google.gcloud.spi.StorageRpc;
+import com.google.gcloud.storage.spi.StorageRpc;
 
 import org.junit.Test;
 
diff --git a/gcloud-java-storage/src/test/java/com/google/gcloud/storage/SerializationTest.java b/gcloud-java-storage/src/test/java/com/google/gcloud/storage/SerializationTest.java
index ac096375b120..ad13b14ae4e2 100644
--- a/gcloud-java-storage/src/test/java/com/google/gcloud/storage/SerializationTest.java
+++ b/gcloud-java-storage/src/test/java/com/google/gcloud/storage/SerializationTest.java
@@ -26,8 +26,8 @@
 import com.google.gcloud.RestorableState;
 import com.google.gcloud.RetryParams;
 import com.google.gcloud.WriteChannel;
-import com.google.gcloud.spi.StorageRpc;
 import com.google.gcloud.storage.Acl.Project.ProjectRole;
+import com.google.gcloud.storage.spi.StorageRpc;
 
 import org.junit.Test;
 
diff --git a/gcloud-java-storage/src/test/java/com/google/gcloud/storage/StorageImplTest.java b/gcloud-java-storage/src/test/java/com/google/gcloud/storage/StorageImplTest.java
index 4050e7d6267b..9a306b2b03c6 100644
--- a/gcloud-java-storage/src/test/java/com/google/gcloud/storage/StorageImplTest.java
+++ b/gcloud-java-storage/src/test/java/com/google/gcloud/storage/StorageImplTest.java
@@ -37,10 +37,10 @@
 import com.google.gcloud.RetryParams;
 import com.google.gcloud.ServiceOptions;
 import com.google.gcloud.WriteChannel;
-import com.google.gcloud.spi.StorageRpc;
-import com.google.gcloud.spi.StorageRpc.Tuple;
-import com.google.gcloud.spi.StorageRpcFactory;
 import com.google.gcloud.storage.Storage.CopyRequest;
+import com.google.gcloud.storage.spi.StorageRpc;
+import com.google.gcloud.storage.spi.StorageRpc.Tuple;
+import com.google.gcloud.storage.spi.StorageRpcFactory;
 
 import org.easymock.Capture;
 import org.easymock.EasyMock;
diff --git a/pom.xml b/pom.xml
index b9d979c4d467..b7766ac0e5c6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -389,6 +389,24 @@
                 <show>protected</show>
                 <nohelp>true</nohelp>
                 <outputDirectory>${project.build.directory}/javadoc</outputDirectory>
+                <groups>
+                  <group>
+                    <title>API packages</title>
+                    <packages>com.google.gcloud*</packages>
+                  </group>
+                  <group>
+                    <title>Test helpers packages</title>
+                    <packages>com.google.gcloud.bigquery.testing:com.google.gcloud.datastore.testing:com.google.gcloud.resourcemanager.testing:com.google.gcloud.storage.testing</packages>
+                  </group>
+                  <group>
+                    <title>Example packages</title>
+                    <packages>com.google.gcloud.examples*</packages>
+                  </group>
+                  <group>
+                    <title>SPI packages</title>
+                    <packages>com.google.gcloud.spi:com.google.gcloud.bigquery.spi:com.google.gcloud.datastore.spi:com.google.gcloud.resourcemanager.spi:com.google.gcloud.storage.spi</packages>
+                  </group>
+                </groups>
               </configuration>
             </plugin>
             <plugin>