java - Applet 无法运行并崩溃 7u55 插件在 chrome、Firefox 和 IE 中工作正常

Question

我在网页中的小程序打不开，Java 插件变得无响应并且 chrome 卡住了。我是 Java Web 服务的新手。任何帮助将不胜感激。

Java Plug-in 10.55.2.14
Using JRE version 1.7.0_55-b14 Java HotSpot(TM) Client VM
User home directory = 
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c:   clear console window
f:   finalize objects on finalization queue
g:   garbage collect
h:   display this help message
l:   dump classloader list
m:   print memory usage
o:   trigger logging
q:   hide console
r:   reload policy configuration
s:   dump system and deployment properties
t:   dump thread list
v:   dump thread stack
x:   clear classloader cache
0-5: set trace level to <n>
----------------------------------------------------
cache: Initialize resource manager: com.sun.deploy.cache.ResourceProviderImpl@15b758
java.lang.NullPointerException
    at sun.awt.SunToolkit.getSystemEventQueueImplPP(Unknown Source)
    at sun.awt.SunToolkit.getSystemEventQueueImplPP(Unknown Source)
    at sun.awt.SunToolkit.getSystemEventQueueImpl(Unknown Source)
    at java.awt.Toolkit.getEventQueue(Unknown Source)
    at java.awt.EventQueue.invokeLater(Unknown Source)
    at sun.awt.windows.WToolkit.windowsSettingChange(Unknown Source)
    at sun.awt.windows.WToolkit.eventLoop(Native Method)
    at sun.awt.windows.WToolkit.run(Unknown Source)
basic: Added progress listener: sun.plugin.util.ProgressMonitorAdapter@7544a6
security: Expected Main URL: http://soemething/applet.jar
basic: Plugin2ClassLoader.addURL parent called for http://soemething/applet.jar
security: Blacklist revocation check is enabled
security: blacklist: created: NEED_LOAD, lastModified: 1397750579401
security: blacklist: hasBeenModifiedSince 1397750579477 (we have 1397750579401)
security: Trusted libraries list check is enabled
network: Cache entry found [url: http://soemething/applet.jar, version: null] prevalidated=false/0
cache: Adding MemoryCache entry: http://soemething/applet.jar
cache: Resource http://soemething/applet.jar has expired.

Answer 1

在 7u25 之后调用 EventQueue.invokeLater() 时，存在大量关于 NullPointerException 的已知错误。其中一些是:

• 8017776 ，已在 8 和 backported 中修复到 7u60 (b01)。
• 8019274 .尝试的修复包括 this solution .

如果 8017776 的修复没有帮助，则 8019274 的修复可能对您有帮助。