diff --git a/jsprit-core/.classpath b/jsprit-core/.classpath
deleted file mode 100644
index 7fcefca3..00000000
--- a/jsprit-core/.classpath
+++ /dev/null
@@ -1,30 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<classpath>
-	<classpathentry kind="src" output="target/classes" path="src/main/java">
-		<attributes>
-			<attribute name="optional" value="true"/>
-			<attribute name="maven.pomderived" value="true"/>
-		</attributes>
-	</classpathentry>
-	<classpathentry kind="src" output="target/test-classes" path="src/test/java">
-		<attributes>
-			<attribute name="optional" value="true"/>
-			<attribute name="maven.pomderived" value="true"/>
-		</attributes>
-	</classpathentry>
-	<classpathentry including="**/*.java" kind="src" path="src/test/resources"/>
-	<classpathentry including="**/*.java" kind="src" path="src/main/resources"/>
-	<classpathentry kind="con" path="org.maven.ide.eclipse.MAVEN2_CLASSPATH_CONTAINER"/>
-	<classpathentry kind="con" path="org.eclipse.jdt.junit.JUNIT_CONTAINER/4"/>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.6">
-		<attributes>
-			<attribute name="maven.pomderived" value="true"/>
-		</attributes>
-	</classpathentry>
-	<classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
-		<attributes>
-			<attribute name="maven.pomderived" value="true"/>
-		</attributes>
-	</classpathentry>
-	<classpathentry kind="output" path="target/classes"/>
-</classpath>
diff --git a/jsprit-core/.project b/jsprit-core/.project
deleted file mode 100644
index b663793f..00000000
--- a/jsprit-core/.project
+++ /dev/null
@@ -1,29 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<projectDescription>
-	<name>jsprit-core</name>
-	<comment></comment>
-	<projects>
-	</projects>
-	<buildSpec>
-		<buildCommand>
-			<name>org.eclipse.jdt.core.javabuilder</name>
-			<arguments>
-			</arguments>
-		</buildCommand>
-		<buildCommand>
-			<name>org.maven.ide.eclipse.maven2Builder</name>
-			<arguments>
-			</arguments>
-		</buildCommand>
-		<buildCommand>
-			<name>org.eclipse.m2e.core.maven2Builder</name>
-			<arguments>
-			</arguments>
-		</buildCommand>
-	</buildSpec>
-	<natures>
-		<nature>org.eclipse.m2e.core.maven2Nature</nature>
-		<nature>org.eclipse.jdt.core.javanature</nature>
-		<nature>org.maven.ide.eclipse.maven2Nature</nature>
-	</natures>
-</projectDescription>
diff --git a/jsprit-core/jsprit-core.iml b/jsprit-core/jsprit-core.iml
new file mode 100644
index 00000000..8b6384cb
--- /dev/null
+++ b/jsprit-core/jsprit-core.iml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule="true" type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_6" inherit-compiler-output="false">
+    <output url="file://$MODULE_DIR$/target/classes" />
+    <output-test url="file://$MODULE_DIR$/target/test-classes" />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/resources" type="java-test-resource" />
+      <excludeFolder url="file://$MODULE_DIR$/target" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="Maven: org.apache.commons:commons-math:2.2" level="project" />
+    <orderEntry type="library" name="Maven: commons-configuration:commons-configuration:1.9" level="project" />
+    <orderEntry type="library" name="Maven: commons-lang:commons-lang:2.6" level="project" />
+    <orderEntry type="library" name="Maven: commons-logging:commons-logging:1.1.1" level="project" />
+    <orderEntry type="library" name="Maven: xerces:xercesImpl:2.4.0" level="project" />
+    <orderEntry type="library" scope="TEST" name="Maven: junit:junit:4.10" level="project" />
+    <orderEntry type="library" scope="TEST" name="Maven: org.hamcrest:hamcrest-core:1.1" level="project" />
+    <orderEntry type="library" scope="TEST" name="Maven: org.mockito:mockito-all:1.9.5" level="project" />
+    <orderEntry type="library" name="Maven: log4j:log4j:1.2.15" level="project" />
+  </component>
+</module>
+