diff --git a/.gitignore b/.gitignore
index 72396be..d067d81 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,10 +1,11 @@
-/target
 /work
+/build
+/bin
+/target
+/.gradle
 /.classpath
 /.checkstyle
 /.project
 /.settings
-/pom.xml.*
-/release.properties
 /gerrit
 /buck
diff --git a/README.md b/README.md
index 47ae867..a0ad3e0 100644
--- a/README.md
+++ b/README.md
@@ -25,7 +25,7 @@
 you need to setup it referring [Building with Buck] in gerrit documentation.
 
 [Buck]: http://facebook.github.io/buck/
-[Building with Buck]: https://gerrit-documentation.storage.googleapis.com/Documentation/2.8.3/dev-buck.html
+[Building with Buck]: https://gerrit-documentation.storage.googleapis.com/Documentation/2.8.5/dev-buck.html
 
 
 Environments
@@ -33,18 +33,11 @@
 
 * `linux`
   * `java-1.7`
-    * `maven-3.0.4`
     * `buck`
 
 Build
 ---------------------
 
-* Use `maven`
-
-To build plugin with maven.
-
-    mvn package
-
 * Use `buck`
 
 To build plugin with buck
@@ -78,25 +71,6 @@
     hostname = www.foobar.com
 ```
 
-History
----------------------
-
-* 1.3
-  * Build with Buck
-  * Bumped api version to 2.8.3
-
-* 1.2
-  * Fix repository location for gerrit-api
-  * Update README
-
-* 1.1
-  * Fix channel handling
-  * Add property: `monitor.failureCount`
-  * Update README and documents 
-
-* 1.0
-  *  First release
-
 License
 ---------------------
 
diff --git a/build.gradle b/build.gradle
new file mode 100644
index 0000000..7327022
--- /dev/null
+++ b/build.gradle
@@ -0,0 +1,71 @@
+task wrapper(type: Wrapper) {
+  gradleVersion = '1.12'
+}
+
+buildscript {
+  repositories {
+    jcenter()
+  }
+  dependencies {
+    classpath 'com.github.jengelman.gradle.plugins:shadow:0.8'
+  }
+}
+
+apply plugin: 'java'
+apply plugin: 'eclipse'
+apply plugin: 'shadow'
+
+sourceCompatibility = 1.7
+targetCompatibility = 1.7
+
+group = 'com.googlesource.gerrit.plugins.rabbitmq'
+version = '1.4-SNAPSHOT'
+
+jar {
+  manifest {
+    attributes(
+      'Gerrit-PluginName': name, 
+      'Gerrit-ApiType': apiType,
+      'Gerrit-ApiVersion': apiVersion,
+      'Gerrit-Module': 'com.googlesource.gerrit.plugins.rabbitmq.Module',
+      'Implementation-Vendor': 'Gerrit Code Review',
+      'Implementation-URL': 'http://code.google.com/p/gerrit/',
+      'Implementation-Title': "${apiType} ${name}",
+      'Implementation-Version' : version,
+      'Created-By': 'rinrinne (rinrin.ne@gmail.com)'
+    )
+  } 
+}
+
+shadow {
+  classifier = apiVersion
+  exclude 'META-INF/*.DSA'
+  exclude 'META-INF/*.RSA'
+  artifactSet {
+    include 'com.rabbitmq'
+  }
+}
+
+repositories {
+  mavenCentral()
+  maven {
+    name = "Gerrit API repository"
+    url = "https://gerrit-api.storage.googleapis.com/"
+    artifactUrls = [
+      "https://gerrit-api.storage.googleapis.com/release/",
+      "https://gerrit-api.storage.googleapis.com/snapshot/",
+    ]
+  }
+}
+
+dependencies {
+  compile(
+    [group: 'com.google.gerrit', name: "gerrit-${apiType}-api", version: apiVersion],
+    [group: 'com.google.code.gson', name: 'gson', version: '2.1'],
+    [group: 'commons-lang', name: 'commons-lang', version: '2.5'],
+    [group: 'commons-codec', name: 'commons-codec', version: '1.4'],
+    [group: 'com.rabbitmq', name: 'amqp-client', version: '3.2.2'],
+  )
+}
+
+assemble.dependsOn shadowJar
diff --git a/gradle.properties b/gradle.properties
new file mode 100644
index 0000000..c527cec
--- /dev/null
+++ b/gradle.properties
@@ -0,0 +1,2 @@
+apiType=plugin
+apiVersion=2.8.5
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..0087cd3
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.jar
Binary files differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..733a79f
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Thu May 22 13:22:24 JST 2014
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-1.12-bin.zip
diff --git a/gradlew b/gradlew
new file mode 100755
index 0000000..91a7e26
--- /dev/null
+++ b/gradlew
@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/gradlew.bat b/gradlew.bat
new file mode 100644
index 0000000..aec9973
--- /dev/null
+++ b/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/pom.xml b/pom.xml
deleted file mode 100644
index f4c0e92..0000000
--- a/pom.xml
+++ /dev/null
@@ -1,166 +0,0 @@
-<!--
-Copyright (C) 2013 The Android Open Source Project
-
-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.
--->
-<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/maven-v4_0_0.xsd">
-  <modelVersion>4.0.0</modelVersion>
-
-  <groupId>com.googlesource.gerrit.plugins.rabbitmq</groupId>
-  <artifactId>rabbitmq</artifactId>
-  <packaging>jar</packaging>
-  <version>1.4-SNAPSHOT</version>
-  <name>Gerrit RabbitMQ plugin</name>
-
-  <licenses>
-    <license>
-      <name>The Apache Software License, Version 2.0</name>
-      <url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
-      <distribution>repo</distribution>
-      <comments>
-        Copyright (c) 2013 rinrinne a.k.a. rin_ne All rights reserved.
-      </comments>
-    </license>
-  </licenses>
-
-  <developers>
-    <developer>
-      <id>rin_ne</id>
-      <name>rinrinne</name>
-      <email>rinrin.ne@gmail.com</email>
-      <timezone>+9</timezone>
-    </developer>
-  </developers>
-
-  <properties>
-    <Gerrit-ApiType>plugin</Gerrit-ApiType>
-    <Gerrit-ApiVersion>2.8.3</Gerrit-ApiVersion>
-    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-  </properties>
-
-  <build>
-    <plugins>
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-jar-plugin</artifactId>
-        <version>2.4</version>
-        <configuration>
-          <forceCreation>true</forceCreation>
-        </configuration>
-      </plugin>
-
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-compiler-plugin</artifactId>
-        <version>2.3.2</version>
-        <configuration>
-          <source>1.7</source>
-          <target>1.7</target>
-          <encoding>UTF-8</encoding>
-        </configuration>
-      </plugin>
-
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-release-plugin</artifactId>
-        <version>2.4.2</version>
-      </plugin>
-
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-shade-plugin</artifactId>
-        <version>2.2</version>
-        <executions>
-          <execution>
-            <phase>package</phase>
-            <goals>
-              <goal>shade</goal>
-            </goals>
-            <configuration>
-              <finalName>${project.artifactId}-${project.version}-${Gerrit-ApiVersion}</finalName>
-              <transformers>
-                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
-                  <manifestEntries>
-                    <Gerrit-PluginName>${project.artifactId}</Gerrit-PluginName>
-                    <Gerrit-Module>com.googlesource.gerrit.plugins.rabbitmq.Module</Gerrit-Module>
-
-                    <Implementation-Vendor>Gerrit Code Review</Implementation-Vendor>
-                    <Implementation-URL>http://code.google.com/p/gerrit/</Implementation-URL>
-
-                    <Implementation-Title>${Gerrit-ApiType} ${project.artifactId}</Implementation-Title>
-                    <Implementation-Version>${project.version}</Implementation-Version>
-
-                    <Gerrit-ApiType>${Gerrit-ApiType}</Gerrit-ApiType>
-                    <Gerrit-ApiVersion>${Gerrit-ApiVersion}</Gerrit-ApiVersion>
-                  </manifestEntries>
-                </transformer>
-              </transformers>
-              <dependencyReducedPomLocation>${project.build.directory}/dependency-reduced-pom.xml</dependencyReducedPomLocation>
-            </configuration>
-          </execution>
-        </executions>
-      </plugin>
-
-    </plugins>
-  </build>
-
-  <dependencies>
-    <dependency>
-      <groupId>com.google.gerrit</groupId>
-      <artifactId>gerrit-${Gerrit-ApiType}-api</artifactId>
-      <version>${Gerrit-ApiVersion}</version>
-      <scope>provided</scope>
-    </dependency>
-    <dependency>
-      <groupId>com.google.code.gson</groupId>
-      <artifactId>gson</artifactId>
-      <version>2.1</version>
-      <scope>provided</scope>
-    </dependency>
-    <dependency>
-      <groupId>commons-lang</groupId>
-      <artifactId>commons-lang</artifactId>
-      <version>2.5</version>
-      <scope>provided</scope>
-    </dependency>
-    <dependency>
-      <groupId>commons-codec</groupId>
-      <artifactId>commons-codec</artifactId>
-      <version>1.4</version>
-      <scope>provided</scope>
-    </dependency>
-    <dependency>
-      <groupId>com.rabbitmq</groupId>
-      <artifactId>amqp-client</artifactId>
-      <version>3.2.2</version>
-    </dependency>
-  </dependencies>
-
-  <repositories>
-    <repository>
-      <id>gerrit-api-release</id>
-      <url>https://gerrit-api.storage.googleapis.com/release/</url>
-    </repository>
-    <repository>
-      <id>gerrit-api-snapshot</id>
-      <url>https://gerrit-api.storage.googleapis.com/snapshot/</url>
-    </repository>
-  </repositories>
-
-  <scm>
-    <connection>scm:git:http://github.com/rinrinne/gerrit-rabbitmq-plugin.git</connection>
-    <developerConnection>scm:git:https://github.com/rinrinne/gerrit-rabbitmq-plugin.git</developerConnection>
-    <url>https://github.com/rinrinne/gerrit-rabbitmq-plugin</url>
-    <tag>HEAD</tag>
-  </scm>
-</project>
diff --git a/settings.gradle b/settings.gradle
new file mode 100644
index 0000000..1adba7a
--- /dev/null
+++ b/settings.gradle
@@ -0,0 +1 @@
+rootProject.name = 'rabbitmq'