diff --git a/jsprit-analysis/pom.xml b/jsprit-analysis/pom.xml
index bf813ed2..47d55940 100644
--- a/jsprit-analysis/pom.xml
+++ b/jsprit-analysis/pom.xml
@@ -8,37 +8,6 @@
     <artifactId>jsprit-analysis</artifactId>
     <packaging>jar</packaging>
 
-    <build>
-        <pluginManagement>
-            <plugins>
-                <plugin>
-                    <groupId>org.eclipse.m2e</groupId>
-                    <artifactId>lifecycle-mapping</artifactId>
-                    <version>1.0.0</version>
-                    <configuration>
-                        <lifecycleMappingMetadata>
-                            <pluginExecutions>
-                                <pluginExecution>
-                                    <pluginExecutionFilter>
-                                        <groupId>org.apache.maven.plugins</groupId>
-                                        <artifactId>maven-enforcer-plugin</artifactId>
-                                        <versionRange>[1.0.0,)</versionRange>
-                                        <goals>
-                                            <goal>enforce</goal>
-                                        </goals>
-                                    </pluginExecutionFilter>
-                                    <action>
-                                        <ignore />
-                                    </action>
-                                </pluginExecution>
-                            </pluginExecutions>
-                        </lifecycleMappingMetadata>
-                    </configuration>
-                </plugin>
-            </plugins>
-        </pluginManagement>
-    </build>
-
     <dependencies>
         <dependency>
             <groupId>org.jfree</groupId>
diff --git a/jsprit-core/pom.xml b/jsprit-core/pom.xml
index b427f92e..c492277e 100644
--- a/jsprit-core/pom.xml
+++ b/jsprit-core/pom.xml
@@ -26,39 +26,6 @@
     <artifactId>jsprit-core</artifactId>
     <name>jsprit-core</name>
 
-    <build>
-        <pluginManagement>
-            <plugins>
-                <plugin>
-                    <groupId>org.eclipse.m2e</groupId>
-                    <artifactId>lifecycle-mapping</artifactId>
-                    <version>1.0.0</version>
-                    <configuration>
-                        <lifecycleMappingMetadata>
-                            <pluginExecutions>
-                                <pluginExecution>
-                                    <pluginExecutionFilter>
-                                        <groupId>org.apache.maven.plugins</groupId>
-                                        <artifactId>maven-enforcer-plugin</artifactId>
-                                        <versionRange>[1.0.0,)</versionRange>
-                                        <goals>
-                                            <goal>enforce</goal>
-                                        </goals>
-                                    </pluginExecutionFilter>
-                                    <action>
-                                        <ignore />
-                                    </action>
-                                </pluginExecution>
-                            </pluginExecutions>
-                        </lifecycleMappingMetadata>
-                    </configuration>
-                </plugin>
-            </plugins>
-        </pluginManagement>
-
-    </build>
-
-
 
     <dependencies>
 
diff --git a/jsprit-instances/pom.xml b/jsprit-instances/pom.xml
index f6961ff3..f6e6af42 100644
--- a/jsprit-instances/pom.xml
+++ b/jsprit-instances/pom.xml
@@ -11,39 +11,6 @@
 
     <packaging>jar</packaging>
 
-    <build>
-        <pluginManagement>
-            <plugins>
-                <plugin>
-                    <groupId>org.eclipse.m2e</groupId>
-                    <artifactId>lifecycle-mapping</artifactId>
-                    <version>1.0.0</version>
-                    <configuration>
-                        <lifecycleMappingMetadata>
-                            <pluginExecutions>
-                                <pluginExecution>
-                                    <pluginExecutionFilter>
-                                        <groupId>org.apache.maven.plugins</groupId>
-                                        <artifactId>maven-enforcer-plugin</artifactId>
-                                        <versionRange>[1.0.0,)</versionRange>
-                                        <goals>
-                                            <goal>enforce</goal>
-                                        </goals>
-                                    </pluginExecutionFilter>
-                                    <action>
-                                        <ignore />
-                                    </action>
-                                </pluginExecution>
-                            </pluginExecutions>
-                        </lifecycleMappingMetadata>
-                    </configuration>
-                </plugin>
-            </plugins>
-        </pluginManagement>
-    </build>
-
-
-
     <dependencies>
         <dependency>
             <groupId>${project.groupId}</groupId>
diff --git a/jsprit-io/pom.xml b/jsprit-io/pom.xml
index 74cca11e..b6700b37 100644
--- a/jsprit-io/pom.xml
+++ b/jsprit-io/pom.xml
@@ -12,37 +12,6 @@
     <artifactId>jsprit-io</artifactId>
     <packaging>jar</packaging>
 
-    <build>
-        <pluginManagement>
-            <plugins>
-                <plugin>
-                    <groupId>org.eclipse.m2e</groupId>
-                    <artifactId>lifecycle-mapping</artifactId>
-                    <version>1.0.0</version>
-                    <configuration>
-                        <lifecycleMappingMetadata>
-                            <pluginExecutions>
-                                <pluginExecution>
-                                    <pluginExecutionFilter>
-                                        <groupId>org.apache.maven.plugins</groupId>
-                                        <artifactId>maven-enforcer-plugin</artifactId>
-                                        <versionRange>[1.0.0,)</versionRange>
-                                        <goals>
-                                            <goal>enforce</goal>
-                                        </goals>
-                                    </pluginExecutionFilter>
-                                    <action>
-                                        <ignore />
-                                    </action>
-                                </pluginExecution>
-                            </pluginExecutions>
-                        </lifecycleMappingMetadata>
-                    </configuration>
-                </plugin>
-            </plugins>
-        </pluginManagement>
-    </build>
-
     <dependencies>
         <dependency>
             <groupId>${project.groupId}</groupId>
diff --git a/pom.xml b/pom.xml
index 2b2164fc..3d385881 100644
--- a/pom.xml
+++ b/pom.xml
@@ -81,7 +81,7 @@
     </modules>
 
     <properties>
-        <jdkVersion>1.6</jdkVersion>
+        <jdkVersion>1.7</jdkVersion>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <junit.version>4.10</junit.version>
         <mockito.version>1.9.5</mockito.version>
@@ -109,7 +109,7 @@
             </testResource>
         </testResources>
 
-        <pluginManagement>
+       <!-- <pluginManagement>
             <plugins>
                 <plugin>
                     <groupId>org.eclipse.m2e</groupId>
@@ -136,10 +136,10 @@
                     </configuration>
                 </plugin>
             </plugins>
-        </pluginManagement>
+        </pluginManagement>-->
         <plugins>
 
-            <plugin>
+            <!--<plugin>
                 <artifactId>maven-enforcer-plugin</artifactId>
                 <version>1.1.1</version>
                 <executions>
@@ -168,67 +168,73 @@
                         </configuration>
                     </execution>
                 </executions>
-            </plugin>
+            </plugin>-->
+
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.1</version>
+                <version>3.5.1</version>
                 <configuration>
+                    <!--
+                    <compilerArgument>-Xlint:unchecked</compilerArgument>
+                    <compilerArgument>-Xlint:deprecation</compilerArgument>
+                    -->
+
+                    <!-- suppress warning about Unsafe functionality -->
+                    <compilerArgument>-XDignore.symbol.file</compilerArgument>
+                    <fork>true</fork>
                     <source>${jdkVersion}</source>
                     <target>${jdkVersion}</target>
-                    <showWarnings>true</showWarnings>
-                    <showDeprecation>true</showDeprecation>
-                    <encoding>${project.build.sourceEncoding}</encoding>
-                    <!-- configure initial and maximal memory for compiling -->
-                    <fork>true</fork>
-                    <meminitial>128m</meminitial>
-                    <maxmem>512m</maxmem>
-                    <compilerArguments>
-                        <Xmaxwarns>4000</Xmaxwarns>
-                        <Xmaxerrs>100</Xmaxerrs>
-                    </compilerArguments>
                 </configuration>
             </plugin>
 
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-eclipse-plugin</artifactId>
-                <version>2.8</version>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>2.19.1</version>
                 <configuration>
-                    <classpathContainers>
-                        <classpathContainer>
-                            org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.6
-                        </classpathContainer>
-                    </classpathContainers>
+                    <argLine>-Xmx100m -Xms100m</argLine>
                 </configuration>
             </plugin>
 
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-source-plugin</artifactId>
-                <version>2.2.1</version>
+                <artifactId>maven-failsafe-plugin</artifactId>
+                <version>2.19</version>
                 <executions>
                     <execution>
-                        <id>attach-sources</id>
                         <goals>
-                            <goal>jar</goal>
+                            <goal>integration-test</goal>
+                            <goal>verify</goal>
                         </goals>
                     </execution>
                 </executions>
             </plugin>
 
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-deploy-plugin</artifactId>
+                <version>2.8.2</version>
+            </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-javadoc-plugin</artifactId>
-                <version>2.9.1</version>
-                <executions>
-                    <execution>
-                        <id>attach-javadocs</id>
-                        <goals>
-                            <goal>jar</goal>
-                        </goals>
-                    </execution>
-                </executions>
+                <version>2.10.3</version>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-source-plugin</artifactId>
+                <version>2.4</version>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-assembly-plugin</artifactId>
+                <version>2.6</version>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-jar-plugin</artifactId>
+                <version>2.6</version>
             </plugin>
 
             <plugin>