import com.sun.tools.corba.se.idl.InvalidArgument; //导入依赖的package包/类
/**
 *
 **/
// XXX Either generalize this facility or remove it completely.
protected void packageFromProps (Properties props) throws InvalidArgument
{
  Enumeration propsEnum = props.propertyNames ();
  while (propsEnum.hasMoreElements ())
  {
    String prop = (String)propsEnum.nextElement ();
    if (prop.startsWith ("PkgPrefix."))
    {
      String type = prop.substring (10);
      String pkg = props.getProperty (prop);
      checkPackageNameValid( pkg ) ;
      checkPackageNameValid( type ) ;
      packages.put (type, pkg);
    }
  }
}
 

import com.sun.tools.corba.se.idl.InvalidArgument; //导入依赖的package包/类
/**
 *
 **/
private void checkPackageNameValid (String name) throws InvalidArgument
{
  if (name.charAt (0) == '.')
    throw new InvalidArgument (name);
  for (int i = 0; i < name.length ();++i)
    if (name.charAt (i) == '.')
    {
      if (i == name.length () - 1 || !Character.isJavaIdentifierStart (name.charAt (++i)))
        throw new InvalidArgument (name);
    }
    else if (!Character.isJavaIdentifierPart (name.charAt (i)))
      throw new InvalidArgument (name);
}