Java Netbeans不给出提示

通常，我会从Netbeans得到一些黄色的提示。如图所示，该类无法编译，但Netbeans没有任何提示，通常我会在行号上看到一些黄色提示：

我将抛出选项配置为：

code as follows:

package net.bounceme.dur.nntp.swing;

import java.util.logging.Logger;
import javax.swing.DefaultListModel;
import javax.swing.JList;
import javax.swing.JScrollPane;
import net.bounceme.dur.nntp.gnu.Page;
import net.bounceme.dur.nntp.gnu.Usenet;

public class MyPanel extends JScrollPane {

    private static final Logger LOG = Logger.getLogger(MyPanel.class.getName());
    private JList jList;
    private DefaultListModel defaultListModel;
    private Usenet u = Usenet.INSTANCE;
    private Page page;

    public MyPanel() {
        page = u.getPage(new Page().getPmd()); //uncaught exception
        jList = new JList(defaultListModel); // null, need to initialize
        initComponents();
    }

    private void initComponents() {
    }
}

init:
Deleting: /home/thufir/NetBeansProjects/gnumail-providers/build/built-jar.properties
deps-jar:
Updating property file: /home/thufir/NetBeansProjects/gnumail-providers/build/built-jar.properties
Compiling 1 source file to /home/thufir/NetBeansProjects/gnumail-providers/build/classes
/home/thufir/NetBeansProjects/gnumail-providers/src/net/bounceme/dur/nntp/swing/MyPanel.java:19: error: unreported exception Exception; must be caught or declared to be thrown
        page = u.getPage(new Page().getPmd()); //uncaught exception
Note: /home/thufir/NetBeansProjects/gnumail-providers/src/net/bounceme/dur/nntp/swing/MyPanel.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
1 error
/home/thufir/NetBeansProjects/gnumail-providers/nbproject/build-impl.xml:624: The following error occurred while executing this line:
/home/thufir/NetBeansProjects/gnumail-providers/nbproject/build-impl.xml:243: Compile failed; see the compiler error output for details.
BUILD FAILED (total time: 0 seconds)

我也没有看到关于声明对象的提示。就像提示被禁用一样。如何重新启用提示

编辑：

code as follows:

package net.bounceme.dur.nntp.swing;

import java.util.logging.Logger;
import javax.swing.DefaultListModel;
import javax.swing.JList;
import javax.swing.JScrollPane;
import net.bounceme.dur.nntp.gnu.Page;
import net.bounceme.dur.nntp.gnu.Usenet;

public class MyPanel extends JScrollPane {

    private static final Logger LOG = Logger.getLogger(MyPanel.class.getName());
    private JList jList;
    private DefaultListModel defaultListModel;
    private Usenet u = Usenet.INSTANCE;
    private Page page;

    public MyPanel() {
        page = u.getPage(new Page().getPmd()); //uncaught exception
        jList = new JList(defaultListModel); // null, need to initialize
        initComponents();
    }

    private void initComponents() {
    }
}

init:
Deleting: /home/thufir/NetBeansProjects/gnumail-providers/build/built-jar.properties
deps-jar:
Updating property file: /home/thufir/NetBeansProjects/gnumail-providers/build/built-jar.properties
Compiling 1 source file to /home/thufir/NetBeansProjects/gnumail-providers/build/classes
/home/thufir/NetBeansProjects/gnumail-providers/src/net/bounceme/dur/nntp/swing/MyPanel.java:19: error: unreported exception Exception; must be caught or declared to be thrown
        page = u.getPage(new Page().getPmd()); //uncaught exception
Note: /home/thufir/NetBeansProjects/gnumail-providers/src/net/bounceme/dur/nntp/swing/MyPanel.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
1 error
/home/thufir/NetBeansProjects/gnumail-providers/nbproject/build-impl.xml:624: The following error occurred while executing this line:
/home/thufir/NetBeansProjects/gnumail-providers/nbproject/build-impl.xml:243: Compile failed; see the compiler error output for details.
BUILD FAILED (total time: 0 seconds)

显示此类编译失败的堆栈跟踪：

code as follows:

package net.bounceme.dur.nntp.swing;

import java.util.logging.Logger;
import javax.swing.DefaultListModel;
import javax.swing.JList;
import javax.swing.JScrollPane;
import net.bounceme.dur.nntp.gnu.Page;
import net.bounceme.dur.nntp.gnu.Usenet;

public class MyPanel extends JScrollPane {

    private static final Logger LOG = Logger.getLogger(MyPanel.class.getName());
    private JList jList;
    private DefaultListModel defaultListModel;
    private Usenet u = Usenet.INSTANCE;
    private Page page;

    public MyPanel() {
        page = u.getPage(new Page().getPmd()); //uncaught exception
        jList = new JList(defaultListModel); // null, need to initialize
        initComponents();
    }

    private void initComponents() {
    }
}

init:
Deleting: /home/thufir/NetBeansProjects/gnumail-providers/build/built-jar.properties
deps-jar:
Updating property file: /home/thufir/NetBeansProjects/gnumail-providers/build/built-jar.properties
Compiling 1 source file to /home/thufir/NetBeansProjects/gnumail-providers/build/classes
/home/thufir/NetBeansProjects/gnumail-providers/src/net/bounceme/dur/nntp/swing/MyPanel.java:19: error: unreported exception Exception; must be caught or declared to be thrown
        page = u.getPage(new Page().getPmd()); //uncaught exception
Note: /home/thufir/NetBeansProjects/gnumail-providers/src/net/bounceme/dur/nntp/swing/MyPanel.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
1 error
/home/thufir/NetBeansProjects/gnumail-providers/nbproject/build-impl.xml:624: The following error occurred while executing this line:
/home/thufir/NetBeansProjects/gnumail-providers/nbproject/build-impl.xml:243: Compile failed; see the compiler error output for details.
BUILD FAILED (total time: 0 seconds)

---

这不是答案，这是附加信息。问题自行解决了。也许是因为我退出了Netbeans。也许是因为我重新启动了。也许是小精灵：

---

需要明确的是，保存时编译仍然处于禁用状态，它与Netbeans的版本相同。

在从internet网页复制了一个示例后，我遇到了同样的问题。重新启动Netbeans后，我再次收到提示。

当您将“显示为：错误”更改为“显示为：警告”时，提示是否有效？该选项已灰显，无法更改。我认为这可能是其他地方的另一个设置，或者提示不适用于Swing..？您是否也可以发布代码，以便我们检查它是否与您的设置或我们的设置有关。完整项目位于github上：它设置为作为Netbeans项目签出。但是，它有一些JAR依赖项。@您是否尝试过重新安装NetBeans？