Eclipse plugin Eclipse插件：切换菜单命令无法找到处理程序

我试图使用切换菜单选项，但可能做了一些错误。以下代码创建了“切换”菜单项，当我在加载后第一次单击此选项时，它工作正常，但当我再次单击以将其切换回旧状态时，会出现以下错误：

org.eclipse.core.commands.NotHandledException: There is no handler to execute for command my.commands.compileAutomatically
    at org.eclipse.core.commands.Command.executeWithChecks(Command.java:485)
    at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508)
    at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:169)
    ....

菜单：

有人能帮我理解我的代码有什么问题，不管当前菜单状态如何，它只会找到一次处理程序吗？
谢谢

尝试在CompileAutomaticalyHandler中重写isHandled（）并返回false

<command
    commandId="my.commands.compileAutomatically"
    label="Compile Automatically"
    style="toggle">
</command>

<command
    defaultHandler="my.handlers.CompileAutomaticallyHandler"
    id="my.commands.compileAutomatically"
    name="Compile Automatically">
    <state
        class="org.eclipse.ui.handlers.RegistryToggleState:true"
        id="org.eclipse.ui.commands.toggleState">
    </state>
</command>

public class CompileAutomaticallyHandler extends AbstractHandler {

    @Override
    public Object execute(ExecutionEvent event) throws ExecutionException {
        Command command = event.getCommand();
        boolean oldValue = HandlerUtil.toggleCommandState(command);
        System.out.println(oldValue);
        return null;
    }
}