构建 JFrame 时 Java Web Start 挂起

Question

使用 Java Web Start 启动程序时我需要帮助。

我从主页启动我的程序，程序只是挂在进程处理程序中的 javaw-process 中。当我使用 jvisualvm 转储线程时，我看到它挂在“AWT-EventQueue-0”线程中（构建 JFrame 时）：

"AWT-EventQueue-0" prio=6 tid=0x02da7c00 nid=0x1414 runnable [0x0367f000]
    java.lang.Thread.State: RUNNABLE
        at sun.awt.windows.WToolkit.getScreenInsets(Native Method)
        at sun.awt.windows.WToolkit.getScreenInsets(Unknown Source)
        at java.awt.Window.init(Unknown Source)
        at java.awt.Window.<init>(Unknown Source)
        at java.awt.Frame.<init>(Unknown Source)
        at javax.swing.JFrame.<init>(Unknown Source)
        at se.testing.Application$2.run(Application.java:170)
        at java.awt.event.InvocationEvent.dispatch(Unknown Source)
        at java.awt.EventQueue.dispatchEvent(Unknown Source)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
        at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)

这是主要内容：

public static void main(String... args) {

    ....

    SwingUtilities.invokeLater(new Runnable() {
        public void run() {
            JFrame f = new JFrame("Test");
            ...
        }
    });
}

更新：这里jnlp 文件：

<?xml version="1.0" encoding="utf-8"?>
<jnlp spec="6.0+" 
      codebase="http://localhost/archive/Application-1.0.0/"
      href="application.jnlp">
  <information>
    <title>Application</title>
    <vendor>Testing</vendor>
    <homepage href="http://localhost/" />
    <description></description>
    <offline-allowed/>
  </information>
  <security>
    <all-permissions/>
  </security>
  <update check="timeout" policy="always" />
  <resources>
    <j2se version="1.6+"/>
    <jar href="Application-1.0.0.jar" main="true"/>
    <jar href="Framework-1.0.0.jar"/>
    <jar href="WebServices-1.0.0.jar"/>
    <jar href="axis-1.4.jar"/>
    <jar href="axis-jaxrpc-1.4.jar"/>
    <jar href="log4j-1.2.14.jar"/>
    <jar href="spring-2.5.5.jar"/>
    <jar href="commons-logging-1.1.1.jar"/>
    <jar href="commons-net-2.0.jar"/>
    <jar href="nanoxml-2.2.3.jar"/>
    <jar href="jtds-1.2.2.jar"/>
    <jar href="commons-discovery-0.4.jar"/>
    <jar href="wsdl4j-1.6.2.jar"/>
  </resources>
  <application-desc main-class="se.testing.Application">
  </application-desc>
</jnlp>

可能出了什么问题？！ （这是我第一次接触 GUI，而且我使用的是 Windows XP。）

此外，我注意到我还有另一个 AWT 线程 (??!?!) 也挂在不同的位置：

从运行 1 开始，我让它挂起这里：

"AWT-EventQueue-1" prio=6 tid=0x03448800 nid=0x152c runnable [0x036cf000]
    java.lang.Thread.State: RUNNABLE
        at sun.awt.windows.WComponentPeer.nativeHandleEvent(Native Method)
        at sun.awt.windows.WComponentPeer.handleEvent(Unknown Source)
        at sun.awt.windows.WWindowPeer.handleEvent(Unknown Source)
        at java.awt.Component.dispatchEventImpl(Unknown Source)
        at java.awt.Container.dispatchEventImpl(Unknown Source)
        at java.awt.Component.dispatchEvent(Unknown Source)
        at java.awt.KeyboardFocusManager.redispatchEvent(Unknown Source)
        at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(Unknown Source)
        at java.awt.DefaultKeyboardFocusManager.dispatchEvent(Unknown Source)
        at java.awt.Component.dispatchEventImpl(Unknown Source)
        at java.awt.Container.dispatchEventImpl(Unknown Source)
        at java.awt.Window.dispatchEventImpl(Unknown Source)
        at java.awt.Component.dispatchEvent(Unknown Source)
        at java.awt.EventQueue.dispatchEvent(Unknown Source)
        at java.awt.SequencedEvent.dispatch(Unknown Source)
        at java.awt.EventQueue.dispatchEvent(Unknown Source)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
        at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
        at java.awt.EventDispatchThread.run(Unknown Source)

从运行 2 开始：

"AWT-EventQueue-1" prio=6 tid=0x03448800 nid=0x1638 runnable [0x036cf000]
    java.lang.Thread.State: RUNNABLE
        at sun.awt.windows.WToolkit.isWindowTranslucencySupported(Native Method)
        at com.sun.awt.AWTUtilities.isWindowTranslucencySupported(Unknown Source)
        at com.sun.awt.AWTUtilities.isTranslucencySupported(Unknown Source)
        at javax.swing.RepaintManager.updateWindows(Unknown Source)
        at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source)
        at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source)
        at javax.swing.RepaintManager.seqPaintDirtyRegions(Unknown Source)
        at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(Unknown Source)
        at java.awt.event.InvocationEvent.dispatch(Unknown Source)
        at java.awt.EventQueue.dispatchEvent(Unknown Source)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
        at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
        at java.awt.EventDispatchThread.run(Unknown Source)

Answer 1

尝试设置f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

Answer 2

如果有人找到其他解决方案，我会直接接受！我并不鄙视当前的解决方案...

---

似乎只有在使用 Intel HD Graphics 时才会发生这种情况（我的系统是 Core i3clarkdale）。

可能的解决方案是（经过测试！）：

• 使用 Windows 默认驱动程序（~vga 驱动程序）
• 新显卡

Answer 3

当然看起来像是图形驱动程序和 java 的某种问题。

查看此链接是否指向 Java 2D 系统设置有帮助。

Answer 4

您是否尝试过在主线程中构建 GUI？事件处理线程 if for - 处理事件:-)

Answer 5

试试这个代码：

public static void main(String... args) {
    JFrame f = new JFrame("Test");
    f.setVisible( true );
}