diff --git a/build.xml b/build.xml
deleted file mode 100644
index 1c39221..0000000
--- a/build.xml
+++ /dev/null
@@ -1,111 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE configuration>
-<project name="osmCoverage" default="all" basedir=".">
-	<!--
-	ソース以外にビルドに必要なライブラリ
-	javalib/hayashi_0225.jar
-	javalib/postgresql-9.4.1212.jar
-	javalib/hayashi_0225.jar
-	../jar-in-jar-loader.zip
-	-->
-    <property name="src" value="${basedir}/src" />
-    <property name="classes" value="${basedir}/classes" />
-    <property name="dest" value="${basedir}/bin"></property>
-    <property name="javalib" value="lib"></property>
-    <property name="appname" value="osmCoverage"></property>
-    <property name="version" value=""></property>
-    <property name="postgres" value="postgresql-9.4.1212.jar"></property>
-    <property name="hsql" value="hsqldb_2.2.9.jar"></property>
-    <property name="hayashilib" value="hayashi_0225.jar"></property>
-
-
-    <!--
-    [STEP 1]　クリーンナップ
-    -->
-    <target name="clean" description="前回作成したclassファイルを削除する">
-        <mkdir dir="${classes}"/>
-        <delete>
-            <fileset dir="${classes}" includes="**/*.class" />
-            <fileset dir="${src}" includes="**/*.class" />
-        </delete>
-        <delete dir="${dest}" />
-    </target>
-
-    <!--
-    [STEP 2] コンパイル
-    -->
-    <target name="compile_src" depends="clean" description="コンパイル src">
-        <javac target="1.8"	source="1.8" optimize="off" debug="on" verbose="false" srcdir="${src}" destdir="${classes}" encoding="UTF-8" includeantruntime="false">
-            <classpath>
-                <pathelement path="${src}"/>
-                <fileset dir="${javalib}">
-                    <include name="*.jar" />
-                </fileset>
-            </classpath>
-            </javac>
-    </target>
-
-    <!--
-    [STEP 3]　リンク
-    -->
-    <target name="create_run_jar" depends="compile_src" description="'${appname}.jar'を作成する">
-        <tstamp>
-            <format property="ts" pattern="yyyy/MM/dd-HH:mm:ss-z"/>
-        </tstamp>
-        <jar destfile="${basedir}/${appname}.jar">
-            <fileset dir="${src}" includes="**/*.png" />
-            <fileset dir="${src}" includes="**/*.gif" />
-            <fileset dir="${src}" includes="**/*.jpg" />
-
-            <manifest>
-                <attribute name="Main-Class" value="org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader"/>
-                <attribute name="Rsrc-Main-Class" value="Demo"/>
-                <attribute name="Class-Path" value="."/>
-                <attribute name="Rsrc-Class-Path" value="./ ../ ${javalib}/${hayashilib} ${javalib}/${dblib}"/>
-                <attribute name="Implementation-Title"   value="${appname}"/>
-                <attribute name="Implementation-Version" value="${appname}"/>
-                <attribute name="Implementation-Vendor"  value="hayashi"/>
-                <attribute name="Build-Id" value="${ts} (${user.name} [${os.name} ${os.version} ${os.arch}])"/>
-            </manifest>
-            <!-- zipfileset src="${javalib}/jar-in-jar-loader.zip"/ -->
-            <!-- zipfileset dir="${javalib}" includes="${hayashilib}"/ -->
-            <!-- zipfileset dir="${javalib}" includes="${dblib}"/ -->
-            <!-- zipfileset dir="${javalib}" includes="hsqldb_2.2.9.jar"/ -->
-            <zipfileset dir="${classes}"/>
-            <zipfileset dir="${src}"/>
-        </jar>
-    </target>
-
-    <!--
-    [STEP 4]　デプロイ
-    -->
-    <target name="deploy" depends="create_run_jar" description="'${appname}.jar'を作成する">
-    	<zip destfile="${appname}.zip">
-    	    <fileset dir="${basedir}" includes="${appname}.jar"/>
-            <fileset dir="${javalib}">
-                <include name="${hayashilib}"/>
-                <include name="${postgres}"/>
-                <include name="${hsql}"/>
-            </fileset>
-    	    <fileset dir="${src}" includes="*.bat"/>
-    	    <fileset dir="${src}" includes="*.sh"/>
-    	    <fileset dir="${src}" includes="*.properties"/>
-    	    <fileset dir="${src}" includes="*.sql"/>
-    	</zip>
-    	<copy todir="bin">
-    	    <fileset dir="${basedir}" includes="${appname}.jar"/>
-                <fileset dir="${javalib}">
-                    <include name="${hayashilib}"/>
-                    <include name="${postgres}"/>
-                    <include name="${hsql}"/>
-                </fileset>
-    	    <fileset dir="${src}" includes="*.bat"/>
-    	    <fileset dir="${src}" includes="*.sh"/>
-            <fileset dir="${src}" includes="*.properties"/>
-    	    <fileset dir="${src}" includes="*.sql"/>
-    	</copy>
-    </target>
-
-    <target name="all" depends="deploy"></target>
-</project>
-
diff --git a/manifest.mf b/manifest.mf
deleted file mode 100644
index 328e8e5..0000000
--- a/manifest.mf
+++ /dev/null
@@ -1,3 +0,0 @@
-Manifest-Version: 1.0
-X-COMMENT: Main-Class will be added automatically by build
-
diff --git a/nbbuild.xml b/nbbuild.xml
deleted file mode 100644
index b6c1178..0000000
--- a/nbbuild.xml
+++ /dev/null
@@ -1,73 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!-- You may freely edit this file. See commented blocks below for -->
-<!-- some examples of how to customize the build. -->
-<!-- (If you delete it and reopen the project it will be recreated.) -->
-<!-- By default, only the Clean and Build commands use this build script. -->
-<!-- Commands such as Run, Debug, and Test only use this build script if -->
-<!-- the Compile on Save feature is turned off for the project. -->
-<!-- You can turn off the Compile on Save (or Deploy on Save) setting -->
-<!-- in the project's Project Properties dialog box.-->
-<project name="osmCoverage" default="default" basedir=".">
-    <description>Builds, tests, and runs the project osmCoverage.</description>
-    <import file="nbproject/build-impl.xml"/>
-    <!--
-
-    There exist several targets which are by default empty and which can be 
-    used for execution of your tasks. These targets are usually executed 
-    before and after some main targets. They are: 
-
-      -pre-init:                 called before initialization of project properties
-      -post-init:                called after initialization of project properties
-      -pre-compile:              called before javac compilation
-      -post-compile:             called after javac compilation
-      -pre-compile-single:       called before javac compilation of single file
-      -post-compile-single:      called after javac compilation of single file
-      -pre-compile-test:         called before javac compilation of JUnit tests
-      -post-compile-test:        called after javac compilation of JUnit tests
-      -pre-compile-test-single:  called before javac compilation of single JUnit test
-      -post-compile-test-single: called after javac compilation of single JUunit test
-      -pre-jar:                  called before JAR building
-      -post-jar:                 called after JAR building
-      -post-clean:               called after cleaning build products
-
-    (Targets beginning with '-' are not intended to be called on their own.)
-
-    Example of inserting an obfuscator after compilation could look like this:
-
-        <target name="-post-compile">
-            <obfuscate>
-                <fileset dir="${build.classes.dir}"/>
-            </obfuscate>
-        </target>
-
-    For list of available properties check the imported 
-    nbproject/build-impl.xml file. 
-
-
-    Another way to customize the build is by overriding existing main targets.
-    The targets of interest are: 
-
-      -init-macrodef-javac:     defines macro for javac compilation
-      -init-macrodef-junit:     defines macro for junit execution
-      -init-macrodef-debug:     defines macro for class debugging
-      -init-macrodef-java:      defines macro for class execution
-      -do-jar:                  JAR building
-      run:                      execution of project 
-      -javadoc-build:           Javadoc generation
-      test-report:              JUnit report generation
-
-    An example of overriding the target for project execution could look like this:
-
-        <target name="run" depends="osmCoverage-impl.jar">
-            <exec dir="bin" executable="launcher.exe">
-                <arg file="${dist.jar}"/>
-            </exec>
-        </target>
-
-    Notice that the overridden target depends on the jar target and not only on 
-    the compile target as the regular run target does. Again, for a list of available 
-    properties which you can use, check the target you are overriding in the
-    nbproject/build-impl.xml file. 
-
-    -->
-</project>
diff --git a/test/osm/jp/coverage/AllTest.java b/test/osm/jp/coverage/AllTest.java
index bb1b75a..27dc1f8 100644
--- a/test/osm/jp/coverage/AllTest.java
+++ b/test/osm/jp/coverage/AllTest.java
@@ -7,7 +7,6 @@
 import org.junit.BeforeClass;
 import org.junit.runner.RunWith;
 import org.junit.runners.Suite;
-import osm.jp.api.Coverage;
 
 @RunWith(Suite.class)
 @Suite.SuiteClasses({