java里，这样调用怎么有问题？

[lfisher]

环境：JDK1.5＋tomcat6.0
下面的红色字体语句在执行时，可以看到("[ CALL ] enter StartContext Class;...");和("[ CALL ] StartContext Class.forName(xx);...");都正常输出到屏幕上，但是getServerIP里的("[ CALL ] enter getServerIP;...");却没有显示，也没有异常抛出，什么原因？



StartServelt.java文件里。。。

public class StartServlet extends HttpServlet
implements StartConstants
{
static Class class$com$start$xframe$startups$StartServlet; /* synthetic field */
private ResourcesCheck pResourcesCheck ;

public StartServlet()
{
}

public void init(ServletConfig config)
throws ServletException
{
ServletContext tmpServletContext;

super.init(config);
String startconfig = config.getInitParameter("start.config");
System.setProperty("start.config", config.getServletContext().getRealPath(startconfig));
System.setProperty("start.xframeVersion", "beta 0.3");
pResourcesCheck = new ResourcesCheck(config.getServletContext());
pResourcesCheck.update();
System.out.println("[ CALL ] config.getServletContext();...");
tmpServletContext = config.getServletContext();
System.out.println("[ CALL ] StartContext.getServerIP...");
StartContext.getServerIP();
System.out.println("[ CALL ] getServerIP SUCCESSFULLY");
....
....
}


StartContext.java文件里。。。

public class StartContext extends StartBase
{


public static String getServerIP()
{
System.out.println("[ CALL ] enter getServerIP;...");
return null;
}

static Class class$(String ffxx)
{
System.out.println("[ CALL ] enter StartContext Class;...");
try
{
System.out.println("[ CALL ] StartContext Class.forName(xx);...");
return Class.forName(ffxx);
}
catch(ClassNotFoundException x1)
{
System.out.println("[ CALL ] StartContext ClassNotFoundException;...");
throw new NoClassDefFoundError(x1.getMessage());
}
}

...
...
}

[zzr82528]

通过类名调用公开的静态变量和静态方法是可以的。

[haoxiongok]

如果非要用类名直接调用，
getServerIP()此方法应定义为static