我的JDK是1.5得啊，我的maven2也是2.0.9的最新版本的，这个是底层接口的泛型，又不能删除，请教用过的高手怎样解决啊？

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>org.sonatype.mavenbook.ch04</groupId>
  <artifactId>simple-weather</artifactId>
  <packaging>jar</packaging>
  <version>1.0</version>
  <name>simple-weather</name>
  <url>http://maven.apache.org</url>
  <licenses>
      <license>
          <name>Apache 2</name>
          <url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
          <distribution>repo</distribution>
          <comments>A business-friendly OSS lincense</comments>
      </license>
  </licenses>
  <organization>
      <name>Sonatype</name>
      <url>http://www.sonatype.com</url>
  </organization>
  <developers>
      <id>baoguo</id>
      <name>Dingbaoguo</name>
      <email>jason@maven.org</email>
      <url>http://www.sonatype.com</url>
      <organization>Sonatype</organization>
      <organizationUrI>http://www.sonatype.com</organizationUrI>
      <timezone>-6</timezone>
  </developers>
  <dependencies>
    <dependency>
      <groupId>log4j</groupId>
      <artifactId>log4j</artifactId>
      <version>1.2.14</version>
    </dependency>
    <dependency>
      <groupId>dom4j</groupId>
      <artifactId>dom4j</artifactId>
      <version>1.6.1</version>
    </dependency>
    <dependency>
      <groupId>jaxen</groupId>
      <artifactId>jaxen</artifactId>
      <version>1.1.1</version>
    </dependency>
    <dependency>
      <groupId>velocity</groupId>
      <artifactId>velocity</artifactId>
      <version>1.5</version>
    </dependency>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
  </dependencies>
    <build>
    <plugins>
      <plugin>
        <artifactId>maven-compiler-plugin </artifactId>
        <configuration>
          <source>1.5</source>
          <target>1.5</target>
        </configuration>
      </plugin>
    </plugins>
  </build>
</project>