specify the java version for maven compiler

pom.xml

@@ -19,25 +19,13 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <maven.compiler.source>1.7</maven.compiler.source>
+        <maven.compiler.target>1.7</maven.compiler.target>
+        <maven.compiler.compilerVersion>1.7</maven.compiler.compilerVersion>
         <project.version>0.0.1</project.version>
         <report.common.version>${project.version}</report.common.version>
     </properties>
 
-    <build>
-        <pluginManagement>
-            <plugins>
-                <plugin>
-                    <groupId>org.apache.maven.plugins</groupId>
-                    <artifactId>maven-compiler-plugin</artifactId>
-                    <configuration>
-                        <source>1.7</source>
-                        <target>1.7</target>
-                    </configuration>
-                </plugin>
-            </plugins>
-        </pluginManagement>
-    </build>
-
     <distributionManagement>
         <!-- 发布release仓库 -->
         <repository>

report/pom.xml

@@ -310,15 +310,6 @@
 					</items>
 				</configuration>
 			</plugin>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-compiler-plugin</artifactId>
-				<configuration>
-					<encoding>${project.build.sourceEncoding}</encoding>
-					<source>1.7</source>
-					<target>1.7</target>
-				</configuration>
-			</plugin>
 			<plugin>
 				<artifactId>maven-resources-plugin</artifactId>
 				<executions>