我已经从 jar 中修改了 java 代码，编译后，我编写的代码不起作用。我尝试反编译，发现它说的是以下错误：
未解决的编译问题：
范围内无法访问 DirectDelivDetail 类型的封闭实例
this$0 无法解析或不是字段
DirectDelivDetail 类型的方法setComments()不可见
我知道有很多讨论这个问题的线程，但我没有找到解决方案。好的，这是代码：
public class DirectDelivDetail extends CMSApplet implements
LookupHandler {
private MultiLineEditor comments = null;
private CMSShipment shipment = null;
private void setComments() {
try {
if (this.shipment != null) {
this.shipment.setComments(this.comments.getText());
}
} catch (BusinessRuleException bre) {
JOptionPane.showMessageDialog(null, res.getString(bre.getMessage()));
SwingUtilities.invokeLater(new Runnable() {
public void run() {
DirectDelivDetail.this.comments.requestFocus();
}
});
} finally {
checkFields();
}
}
private JPanel createDetailPanel() {
this.comments = new MultiLineEditor();
this.comments.addFocusListener(new FocusAdapter() {
public void focusLost(FocusEvent e) {
if (!e.isTemporary()) {
DirectDelivDetail.this.setComments();
}
}
});
return detailPanel;
}
}
编译后代码更改。这是以下变化。
private JPanel createDetailPanel() {
this.comments = new MultiLineEditor();
this.comments.addFocusListener(new FocusAdapter() {
public void focusLost(FocusEvent e) {
throw new Error("Unresolved compilation problems: \n\tNo enclosing instance of the type DirectDelivDetail is accessible in scope\n\tThe method checkCancelCommand(FocusEvent) from the type DirectDelivDetail is not visible\n\tthis$0 cannot be resolved or is not a field\n\tNo enclosing instance of the type DirectDelivDetail is accessible in scope\n\tThe method setComments() from the type DirectDelivDetail is not visible\n");
}
});
return detailPanel;
}