相关疑难解决方法(0)

我试图基本上使用Maven插件从我在JAXB中注释的模型类生成XSD模式.这是我的POM中的相关代码:

<plugin>
    <groupId>com.sun.tools.jxc.maven2</groupId>
    <artifactId>maven-jaxb-schemagen-plugin</artifactId>
    <version>1.2</version>
    <executions>
        <execution>
            <phase>generate-resources</phase>
            <goals>
                <goal>generate</goal>
            </goals>
        </execution>
    </executions>

    <configuration>
        <project>${project}</project>
        <destdir>${project.build.directory}/schemas</destdir>
        <srcdir>${project.build.sourceDirectory}/com/floodstream/wowza/mastercontrol/model</srcdir>
        <verbose>true</verbose>
    </configuration>

    <dependencies>
        <dependency>
            <groupId>javax.xml.bind</groupId>
            <artifactId>jaxb-api</artifactId>
            <version>2.2</version>
        </dependency>
        <dependency>
            <groupId>com.sun.xml.bind</groupId>
            <artifactId>jaxb-xjc</artifactId>
            <version>2.2</version>
        </dependency>
        <dependency>
            <groupId>com.sun.xml.bind</groupId>
            <artifactId>jaxb-impl</artifactId>
            <version>2.2</version>
        </dependency>
        <dependency>
            <groupId>com.sun.xml.bind</groupId>
            <artifactId>jaxb-xjc</artifactId>
            <version>2.2</version>
        </dependency>
    </dependencies>
</plugin>

<!-- other stuff omitted for brevity -->

<pluginRepository>
    <id>maven-repository.dev.java.net</id>
    <name>Java.net Maven 2 Repository</name>
    <url>http://download.java.net/maven/2</url>
</pluginRepository>

我收到以下错误:

[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] org/apache/tools/ant/taskdefs/Javac
org.apache.tools.ant.taskdefs.Javac
[INFO] ------------------------------------------------------------------------
[INFO] Trace
java.lang.NoClassDefFoundError: org/apache/tools/ant/taskdefs/Javac
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:634)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
        at …