diff --git a/MIDIDriver/snapshots/jp/kshoji/midi-driver/0.0.1-SNAPSHOT/maven-metadata.xml b/MIDIDriver/snapshots/jp/kshoji/midi-driver/0.0.1-SNAPSHOT/maven-metadata.xml
index dba74d11..39926bb8 100644
--- a/MIDIDriver/snapshots/jp/kshoji/midi-driver/0.0.1-SNAPSHOT/maven-metadata.xml
+++ b/MIDIDriver/snapshots/jp/kshoji/midi-driver/0.0.1-SNAPSHOT/maven-metadata.xml
@@ -5,20 +5,20 @@
   <version>0.0.1-SNAPSHOT</version>
   <versioning>
     <snapshot>
-      <timestamp>20140618.093717</timestamp>
-      <buildNumber>17</buildNumber>
+      <timestamp>20140618.112341</timestamp>
+      <buildNumber>18</buildNumber>
     </snapshot>
-    <lastUpdated>20140618093717</lastUpdated>
+    <lastUpdated>20140618112341</lastUpdated>
     <snapshotVersions>
       <snapshotVersion>
         <extension>aar</extension>
-        <value>0.0.1-20140618.093717-17</value>
-        <updated>20140618093717</updated>
+        <value>0.0.1-20140618.112341-18</value>
+        <updated>20140618112341</updated>
       </snapshotVersion>
       <snapshotVersion>
         <extension>pom</extension>
-        <value>0.0.1-20140618.093717-17</value>
-        <updated>20140618093717</updated>
+        <value>0.0.1-20140618.112341-18</value>
+        <updated>20140618112341</updated>
       </snapshotVersion>
       <snapshotVersion>
         <extension>apklib</extension>
diff --git a/MIDIDriver/snapshots/jp/kshoji/midi-driver/0.0.1-SNAPSHOT/maven-metadata.xml.md5 b/MIDIDriver/snapshots/jp/kshoji/midi-driver/0.0.1-SNAPSHOT/maven-metadata.xml.md5
index 9deb012a..57758845 100644
--- a/MIDIDriver/snapshots/jp/kshoji/midi-driver/0.0.1-SNAPSHOT/maven-metadata.xml.md5
+++ b/MIDIDriver/snapshots/jp/kshoji/midi-driver/0.0.1-SNAPSHOT/maven-metadata.xml.md5
@@ -1 +1 @@
-4c7040aace18e647cb3d1a4f935d33bb
\ No newline at end of file
+f753c076d19101153b547d4f6a22e6e8
\ No newline at end of file
diff --git a/MIDIDriver/snapshots/jp/kshoji/midi-driver/0.0.1-SNAPSHOT/maven-metadata.xml.sha1 b/MIDIDriver/snapshots/jp/kshoji/midi-driver/0.0.1-SNAPSHOT/maven-metadata.xml.sha1
index 3b205012..a50a590d 100644
--- a/MIDIDriver/snapshots/jp/kshoji/midi-driver/0.0.1-SNAPSHOT/maven-metadata.xml.sha1
+++ b/MIDIDriver/snapshots/jp/kshoji/midi-driver/0.0.1-SNAPSHOT/maven-metadata.xml.sha1
@@ -1 +1 @@
-2cf621816ce3b81551b7f5b4a0e0778df1def8a6
\ No newline at end of file
+3ec6f9e272b120fc18e99a207b51fcde4ed398f7
\ No newline at end of file
diff --git a/MIDIDriver/snapshots/jp/kshoji/midi-driver/0.0.1-SNAPSHOT/midi-driver-0.0.1-20140618.112341-18.aar b/MIDIDriver/snapshots/jp/kshoji/midi-driver/0.0.1-SNAPSHOT/midi-driver-0.0.1-20140618.112341-18.aar
new file mode 100644
index 00000000..fc7bded3
Binary files /dev/null and b/MIDIDriver/snapshots/jp/kshoji/midi-driver/0.0.1-SNAPSHOT/midi-driver-0.0.1-20140618.112341-18.aar differ
diff --git a/MIDIDriver/snapshots/jp/kshoji/midi-driver/0.0.1-SNAPSHOT/midi-driver-0.0.1-20140618.112341-18.aar.md5 b/MIDIDriver/snapshots/jp/kshoji/midi-driver/0.0.1-SNAPSHOT/midi-driver-0.0.1-20140618.112341-18.aar.md5
new file mode 100644
index 00000000..07da235b
--- /dev/null
+++ b/MIDIDriver/snapshots/jp/kshoji/midi-driver/0.0.1-SNAPSHOT/midi-driver-0.0.1-20140618.112341-18.aar.md5
@@ -0,0 +1 @@
+e5d186914138fb7a1952e4d5f3348a15
\ No newline at end of file
diff --git a/MIDIDriver/snapshots/jp/kshoji/midi-driver/0.0.1-SNAPSHOT/midi-driver-0.0.1-20140618.112341-18.aar.sha1 b/MIDIDriver/snapshots/jp/kshoji/midi-driver/0.0.1-SNAPSHOT/midi-driver-0.0.1-20140618.112341-18.aar.sha1
new file mode 100644
index 00000000..06d50bc0
--- /dev/null
+++ b/MIDIDriver/snapshots/jp/kshoji/midi-driver/0.0.1-SNAPSHOT/midi-driver-0.0.1-20140618.112341-18.aar.sha1
@@ -0,0 +1 @@
+545a95577e5c79dbc42a4f3f8bcf44102d5017bd
\ No newline at end of file
diff --git a/MIDIDriver/snapshots/jp/kshoji/midi-driver/0.0.1-SNAPSHOT/midi-driver-0.0.1-20140618.112341-18.pom b/MIDIDriver/snapshots/jp/kshoji/midi-driver/0.0.1-SNAPSHOT/midi-driver-0.0.1-20140618.112341-18.pom
new file mode 100644
index 00000000..d37d906d
--- /dev/null
+++ b/MIDIDriver/snapshots/jp/kshoji/midi-driver/0.0.1-SNAPSHOT/midi-driver-0.0.1-20140618.112341-18.pom
@@ -0,0 +1,115 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<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>jp.kshoji</groupId>
+	<artifactId>midi-driver</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<packaging>aar</packaging>
+	<name>Android USB MIDI Driver Library</name>
+	<description>USB MIDI Driver for Android tablets(3.1 or higher)</description>
+	<url>https://github.com/kshoji/USB-MIDI-Driver</url>
+
+	<issueManagement>
+		<system>GitHub Issues</system>
+		<url>https://github.com/kshoji/USB-MIDI-Driver/issues</url>
+	</issueManagement>
+
+	<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>
+		</license>
+	</licenses>
+
+	<scm>
+		<url>https://github.com/kshoji/USB-MIDI-Driver/tree/master</url>
+		<connection>scm:git:git://github.com/kshoji/USB-MIDI-Driver.git</connection>
+		<developerConnection>scm:git:ssh://git@github.com/kshoji/USB-MIDI-Driver.git</developerConnection>
+		<tag>HEAD</tag>
+	</scm>
+
+	<developers>
+		<developer>
+			<email>0x0badc0de@gmail.com</email>
+			<name>Kaoru Shoji</name>
+			<url>https://github.com/kshoji</url>
+			<id>kshoji</id>
+		</developer>
+	</developers>
+
+	<distributionManagement>
+		<repository>
+			<id>release-repo</id>
+			<url>file://${project.build.directory}/release-repo</url>
+		</repository>
+		<snapshotRepository>
+			<id>snapshot-repo</id>
+			<url>file://${project.build.directory}/snapshot-repo</url>
+		</snapshotRepository>
+	</distributionManagement>
+
+	<build>
+		<sourceDirectory>src</sourceDirectory>
+		<plugins>
+			<plugin>
+				<artifactId>maven-compiler-plugin</artifactId>
+				<version>2.5.1</version>
+				<configuration>
+					<source>1.6</source>
+					<target>1.6</target>
+					<compilerVersion>1.6</compilerVersion>
+				</configuration>
+			</plugin>
+			<plugin>
+				<groupId>com.jayway.maven.plugins.android.generation2</groupId>
+				<artifactId>android-maven-plugin</artifactId>
+				<version>3.8.2</version>
+				<configuration>
+					<androidManifestFile>${project.basedir}/AndroidManifest.xml</androidManifestFile>
+					<resourceDirectory>${project.basedir}/res</resourceDirectory>
+					<sdk>
+						<platform>12</platform>
+					</sdk>
+					<deleteConflictingFiles>true</deleteConflictingFiles>
+					<undeployBeforeDeploy>true</undeployBeforeDeploy>
+				</configuration>
+				<extensions>true</extensions>
+			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-eclipse-plugin</artifactId>
+				<version>2.9</version>
+				<configuration>
+					<excludes>
+						<exclude>android:android</exclude>
+					</excludes>
+					<classpathContainers>
+						<classpathContainer>com.android.ide.eclipse.adt.ANDROID_FRAMEWORK</classpathContainer>
+					</classpathContainers>
+					<additionalProjectnatures>
+						<projectnature>com.android.ide.eclipse.adt.AndroidNature</projectnature>
+					</additionalProjectnatures>
+					<additionalBuildcommands>
+						<buildcommand>com.android.ide.eclipse.adt.ResourceManagerBuilder</buildcommand>
+						<buildcommand>com.android.ide.eclipse.adt.PreCompilerBuilder</buildcommand>
+						<buildcommand>com.android.ide.eclipse.adt.ApkBuilder</buildcommand>
+					</additionalBuildcommands>
+					<useProjectReferences>false</useProjectReferences>
+				</configuration>
+			</plugin>
+		</plugins>
+	</build>
+
+	<dependencies>
+		<!-- install dependency using https://github.com/mosabua/maven-android-sdk-deployer -->
+		<!-- mvn install -P 3.1 -->
+		<dependency>
+			<groupId>android</groupId>
+			<artifactId>android</artifactId>
+			<version>3.1_r3</version>
+			<scope>provided</scope>
+		</dependency>
+	</dependencies>
+</project>
\ No newline at end of file
diff --git a/MIDIDriver/snapshots/jp/kshoji/midi-driver/0.0.1-SNAPSHOT/midi-driver-0.0.1-20140618.112341-18.pom.md5 b/MIDIDriver/snapshots/jp/kshoji/midi-driver/0.0.1-SNAPSHOT/midi-driver-0.0.1-20140618.112341-18.pom.md5
new file mode 100644
index 00000000..1398510e
--- /dev/null
+++ b/MIDIDriver/snapshots/jp/kshoji/midi-driver/0.0.1-SNAPSHOT/midi-driver-0.0.1-20140618.112341-18.pom.md5
@@ -0,0 +1 @@
+abbd6cc70dbc8134034e3216e29b24be
\ No newline at end of file
diff --git a/MIDIDriver/snapshots/jp/kshoji/midi-driver/0.0.1-SNAPSHOT/midi-driver-0.0.1-20140618.112341-18.pom.sha1 b/MIDIDriver/snapshots/jp/kshoji/midi-driver/0.0.1-SNAPSHOT/midi-driver-0.0.1-20140618.112341-18.pom.sha1
new file mode 100644
index 00000000..684fd73e
--- /dev/null
+++ b/MIDIDriver/snapshots/jp/kshoji/midi-driver/0.0.1-SNAPSHOT/midi-driver-0.0.1-20140618.112341-18.pom.sha1
@@ -0,0 +1 @@
+27a6d0fce2812f057cc62b83defa324036795336
\ No newline at end of file
diff --git a/MIDIDriver/snapshots/jp/kshoji/midi-driver/maven-metadata.xml b/MIDIDriver/snapshots/jp/kshoji/midi-driver/maven-metadata.xml
index 84b603f3..9420f377 100644
--- a/MIDIDriver/snapshots/jp/kshoji/midi-driver/maven-metadata.xml
+++ b/MIDIDriver/snapshots/jp/kshoji/midi-driver/maven-metadata.xml
@@ -6,6 +6,6 @@
     <versions>
       <version>0.0.1-SNAPSHOT</version>
     </versions>
-    <lastUpdated>20140618093717</lastUpdated>
+    <lastUpdated>20140618112341</lastUpdated>
   </versioning>
 </metadata>
diff --git a/MIDIDriver/snapshots/jp/kshoji/midi-driver/maven-metadata.xml.md5 b/MIDIDriver/snapshots/jp/kshoji/midi-driver/maven-metadata.xml.md5
index 4825d5a1..d695e752 100644
--- a/MIDIDriver/snapshots/jp/kshoji/midi-driver/maven-metadata.xml.md5
+++ b/MIDIDriver/snapshots/jp/kshoji/midi-driver/maven-metadata.xml.md5
@@ -1 +1 @@
-ebcf46f8cc53571ef60a32dec32349e3
\ No newline at end of file
+8bb173a71395eb538d04d93445684f5f
\ No newline at end of file
diff --git a/MIDIDriver/snapshots/jp/kshoji/midi-driver/maven-metadata.xml.sha1 b/MIDIDriver/snapshots/jp/kshoji/midi-driver/maven-metadata.xml.sha1
index 2b7487d5..049492f1 100644
--- a/MIDIDriver/snapshots/jp/kshoji/midi-driver/maven-metadata.xml.sha1
+++ b/MIDIDriver/snapshots/jp/kshoji/midi-driver/maven-metadata.xml.sha1
@@ -1 +1 @@
-e5b02a1489a1a05962edbe511b14262710e4ea71
\ No newline at end of file
+cd600ab39f608093089fe10471886a2c4f765a91
\ No newline at end of file
diff --git a/MIDIDriver/src/jp/kshoji/javax/sound/midi/MidiSystem.java b/MIDIDriver/src/jp/kshoji/javax/sound/midi/MidiSystem.java
index dee2c37f..a23e3de5 100644
--- a/MIDIDriver/src/jp/kshoji/javax/sound/midi/MidiSystem.java
+++ b/MIDIDriver/src/jp/kshoji/javax/sound/midi/MidiSystem.java
@@ -558,7 +558,7 @@ public static boolean isFileTypeSupported(int fileType) {
 	 * @param sequence
 	 * @return
 	 */
-	static boolean isFileTypeSupported(int fileType, Sequence sequence) {
+	public static boolean isFileTypeSupported(int fileType, Sequence sequence) {
 		StandardMidiFileWriter standardMidiFileWriter = new StandardMidiFileWriter();
 		return standardMidiFileWriter.isFileTypeSupported(fileType, sequence);
 	}
@@ -572,7 +572,7 @@ static boolean isFileTypeSupported(int fileType, Sequence sequence) {
 	 * @return
 	 * @throws IOException
 	 */
-	static int write(Sequence sequence, int fileType, File file) throws IOException {
+    public static int write(Sequence sequence, int fileType, File file) throws IOException {
 		StandardMidiFileWriter standardMidiFileWriter = new StandardMidiFileWriter();
 		return standardMidiFileWriter.write(sequence, fileType, file);
 	}
@@ -586,7 +586,7 @@ static int write(Sequence sequence, int fileType, File file) throws IOException
 	 * @return
 	 * @throws IOException
 	 */
-	static int write(Sequence sequence, int fileType, OutputStream outputStream) throws IOException {
+    public static int write(Sequence sequence, int fileType, OutputStream outputStream) throws IOException {
 		StandardMidiFileWriter standardMidiFileWriter = new StandardMidiFileWriter();
 		return standardMidiFileWriter.write(sequence, fileType, outputStream);
 	}
diff --git a/MIDIDriver/src/jp/kshoji/javax/sound/midi/Synthesizer.java b/MIDIDriver/src/jp/kshoji/javax/sound/midi/Synthesizer.java
index efdf145f..9fb02457 100644
--- a/MIDIDriver/src/jp/kshoji/javax/sound/midi/Synthesizer.java
+++ b/MIDIDriver/src/jp/kshoji/javax/sound/midi/Synthesizer.java
@@ -3,7 +3,7 @@
 public interface Synthesizer extends MidiDevice {
     Instrument[] getAvailableInstruments();
 
-    MidiChannel getChannels();
+    MidiChannel[] getChannels();
 
     Soundbank getDefaultSoundbank();