diff --git a/Documentation/config-gerrit.txt b/Documentation/config-gerrit.txt
index e7b7cdc..923c72d 100644
--- a/Documentation/config-gerrit.txt
+++ b/Documentation/config-gerrit.txt
@@ -3031,7 +3031,7 @@
 be specified using standard time unit abbreviations ('ms', 'sec',
 'min', etc.).
 +
-Default is 2 minutes. If no unit is specified, milliseconds
+Default is 4 minutes. If no unit is specified, milliseconds
 is assumed.
 
 [[receive.trustedKey]]receive.trustedKey::
diff --git a/contrib/convertkey/BUCK b/contrib/convertkey/BUCK
new file mode 100644
index 0000000..752f82a
--- /dev/null
+++ b/contrib/convertkey/BUCK
@@ -0,0 +1,20 @@
+include_defs('//lib/maven.defs')
+
+java_library(
+  name = 'convertkey__lib',
+  srcs = glob(['src/main/java/**/*.java']),
+  deps = [
+    '//lib:jsch',
+    '//lib/bouncycastle:bcprov',
+    '//lib/bouncycastle:bcpkix',
+    '//lib/log:nop',
+    '//lib/mina:sshd',
+  ],
+)
+
+java_binary(
+  name = 'convertkey',
+  deps = [':convertkey__lib'],
+  main_class = 'com.googlesource.gerrit.convertkey.ConvertKey',
+)
+
diff --git a/contrib/convertkey/pom.xml b/contrib/convertkey/pom.xml
deleted file mode 100644
index bc71b9e..0000000
--- a/contrib/convertkey/pom.xml
+++ /dev/null
@@ -1,89 +0,0 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-  <modelVersion>4.0.0</modelVersion>
-
-  <groupId>com.googlesource.gerrit</groupId>
-  <artifactId>convertkey</artifactId>
-  <version>0.0.1-SNAPSHOT</version>
-  <packaging>jar</packaging>
-
-  <name>convertkey</name>
-  <url>http://maven.apache.org</url>
-
-  <build>
-    <plugins>
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-dependency-plugin</artifactId>
-        <version>2.8</version>
-        <executions>
-          <execution>
-            <id>copy-dependencies</id>
-            <phase>prepare-package</phase>
-            <goals>
-              <goal>copy-dependencies</goal>
-            </goals>
-            <configuration>
-              <outputDirectory>${project.build.directory}/lib</outputDirectory>
-              <overWriteReleases>false</overWriteReleases>
-              <overWriteSnapshots>false</overWriteSnapshots>
-              <overWriteIfNewer>true</overWriteIfNewer>
-            </configuration>
-          </execution>
-        </executions>
-      </plugin>
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-jar-plugin</artifactId>
-        <version>2.4</version>
-        <configuration>
-          <archive>
-            <manifest>
-              <addClasspath>true</addClasspath>
-              <classpathPrefix>lib/</classpathPrefix>
-              <mainClass>com.googlesource.gerrit.convertkey.ConvertKey</mainClass>
-            </manifest>
-          </archive>
-        </configuration>
-      </plugin>
-    </plugins>
-  </build>
-  
-  <properties>
-    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-  </properties>
-
-  <dependencies>
-    <dependency>
-      <groupId>junit</groupId>
-      <artifactId>junit</artifactId>
-      <version>3.8.1</version>
-      <scope>test</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.apache.sshd</groupId>
-      <artifactId>sshd-core</artifactId>
-      <version>0.14.0</version>
-    </dependency>
-    <dependency>
-      <groupId>org.bouncycastle</groupId>
-      <artifactId>bcprov-jdk15on</artifactId>
-      <version>1.52</version>
-    </dependency>
-    <dependency>
-      <groupId>org.bouncycastle</groupId>
-      <artifactId>bcpkix-jdk15on</artifactId>
-      <version>1.52</version>
-    </dependency>
-    <dependency>
-      <groupId>com.jcraft</groupId>
-      <artifactId>jsch</artifactId>
-      <version>0.1.53</version>
-    </dependency>
-    <dependency>
-      <groupId>org.slf4j</groupId>
-      <artifactId>slf4j-nop</artifactId>
-      <version>1.7.12</version>
-    </dependency>
-  </dependencies>
-</project>
diff --git a/gerrit-server/src/main/java/com/google/gerrit/server/account/SetPreferences.java b/gerrit-server/src/main/java/com/google/gerrit/server/account/SetPreferences.java
index d355dae..569d128 100644
--- a/gerrit-server/src/main/java/com/google/gerrit/server/account/SetPreferences.java
+++ b/gerrit-server/src/main/java/com/google/gerrit/server/account/SetPreferences.java
@@ -80,7 +80,7 @@
   private final Provider<CurrentUser> self;
   private final AccountCache cache;
   private final Provider<ReviewDb> db;
-  private final MetaDataUpdate.User metaDataUpdateFactory;
+  private final Provider<MetaDataUpdate.User> metaDataUpdateFactory;
   private final AllUsersName allUsersName;
   private final DynamicMap<DownloadScheme> downloadSchemes;
 
@@ -88,7 +88,7 @@
   SetPreferences(Provider<CurrentUser> self,
       AccountCache cache,
       Provider<ReviewDb> db,
-      MetaDataUpdate.User metaDataUpdateFactory,
+      Provider<MetaDataUpdate.User> metaDataUpdateFactory,
       AllUsersName allUsersName,
       DynamicMap<DownloadScheme> downloadSchemes) {
     this.self = self;
@@ -114,7 +114,7 @@
     Account.Id accountId = rsrc.getUser().getAccountId();
     AccountGeneralPreferences p;
     VersionedAccountPreferences versionedPrefs;
-    MetaDataUpdate md = metaDataUpdateFactory.create(allUsersName);
+    MetaDataUpdate md = metaDataUpdateFactory.get().create(allUsersName);
     db.get().accounts().beginTransaction(accountId);
     try {
       Account a = db.get().accounts().get(accountId);
diff --git a/gerrit-server/src/main/java/com/google/gerrit/server/git/AsyncReceiveCommits.java b/gerrit-server/src/main/java/com/google/gerrit/server/git/AsyncReceiveCommits.java
index 5952568..899b06a 100644
--- a/gerrit-server/src/main/java/com/google/gerrit/server/git/AsyncReceiveCommits.java
+++ b/gerrit-server/src/main/java/com/google/gerrit/server/git/AsyncReceiveCommits.java
@@ -72,7 +72,7 @@
     long getTimeoutMillis(@GerritServerConfig final Config cfg) {
       return ConfigUtil.getTimeUnit(
           cfg, "receive", null, "timeout",
-          TimeUnit.MINUTES.toMillis(2),
+          TimeUnit.MINUTES.toMillis(4),
           TimeUnit.MILLISECONDS);
     }
   }
diff --git a/lib/bouncycastle/BUCK b/lib/bouncycastle/BUCK
index 0ce5817..21e6120 100644
--- a/lib/bouncycastle/BUCK
+++ b/lib/bouncycastle/BUCK
@@ -8,6 +8,7 @@
   name = 'bcprov',
   id = 'org.bouncycastle:bcprov-jdk15on:' + VERSION,
   sha1 = '88a941faf9819d371e3174b5ed56a3f3f7d73269',
+  unsign = True,
   license = 'DO_NOT_DISTRIBUTE', #'bouncycastle'
 )
 
@@ -23,6 +24,7 @@
   name = 'bcpkix',
   id = 'org.bouncycastle:bcpkix-jdk15on:' + VERSION,
   sha1 = 'b8ffac2bbc6626f86909589c8cc63637cc936504',
+  unsign = True,
   license = 'DO_NOT_DISTRIBUTE', #'bouncycastle'
   deps = [':bcprov'],
 )
diff --git a/lib/log/BUCK b/lib/log/BUCK
index b332f20..a5201f3 100644
--- a/lib/log/BUCK
+++ b/lib/log/BUCK
@@ -10,6 +10,14 @@
 )
 
 maven_jar(
+  name = 'nop',
+  id = 'org.slf4j:slf4j-nop:' + VER,
+  sha1 = '6cca9a3b999ff28b7a35ca762b3197cd7e4c2ad1',
+  license = 'slf4j',
+  deps = [':api'],
+)
+
+maven_jar(
   name = 'impl_log4j',
   id = 'org.slf4j:slf4j-log4j12:' + VER,
   sha1 = '58f588119ffd1702c77ccab6acb54bfb41bed8bd',