如何在嵌套Groovy脚本中检测Ant构建错误

我有一个build.xml，其中包含以下内容：

<project name="myProject>

    <target name="execGroovy">
        <groovy>
            def task = project.createTask('antcall')
            task.target = "taskTarget"
            task.perform()
        </groovy>
    </target>

    <target name="taskTarget">
        <!-- do some things here -->
    </target>

</project>

---

经过一些实验后，我发现可以用try-catch-finally块围绕groovy命令，如下所示：

<project name="myProject>

    <target name="execGroovy">
        <groovy>
            def task = project.createTask('antcall')
            task.target = "taskTarget"
            try {
                task.perform()
            } catch(Exception e) {
                // do something appropriate
            }
        </groovy>
    </target>

    <target name="taskTarget">
        <!-- do some things here -->
    </target>

</project>