从 Firefox 或 Chromium 浏览器启动 WebEx 时。浏览器冻结并停止响应。必须终止浏览器进程才能退出。请帮我解决此问题。
以下是我收集的设置详细信息和错误消息：
设置：Ubuntu 12.10 和所有已安装的软件更新。从 Java 控制台：Java 插件 1.6.0_43 使用 JRE 版本 1.7.0_17-b02 Java HotSpot(TM) 客户端 VM
运行文件which java javac显示以下内容：
/usr/bin/java: symbolic link to `/etc/alternatives/java'
/usr/bin/javac: symbolic link to `/etc/alternatives/javac'
我已加载多个 Java：运行命令sudo update-alternatives --config java
会产生以下结果：
There are 4 choices for the alternative java (providing /usr/bin/java).
Selection Path Priority Status
------------------------------------------------------------
* 0 /usr/lib/jvm/java-6-oracle/jre/bin/java 1082 auto mode
1 /usr/lib/jvm/java-6-openjdk-i386/jre/bin/java 1061 manual mode
2 /usr/lib/jvm/java-6-oracle/jre/bin/java 1082 manual mode
3 /usr/lib/jvm/java-7-openjdk-i386/jre/bin/java 1071 manual mode
4 /usr/lib/jvm/java-7-oracle/jre/bin/java 1081 manual
尝试启动 Webex 时，Java 控制台会产生以下输出：
Java Plug-in 1.6.0_43
Using JRE version 1.7.0_17-b02 Java HotSpot(TM) Client VM
User home directory = /home/tony
----------------------------------------------------
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>
----------------------------------------------------
java.lang.ExceptionInInitializerError
at com.sun.deploy.net.protocol.https.Handler.openConnection(Handler.java:97)
at java.net.URL.openConnection(URL.java:971)
at sun.net.www.protocol.jar.JarURLConnection.<init>(JarURLConnection.java:84)
at sun.plugin.net.protocol.jar.CachedJarURLConnection.<init>(CachedJarURLConnection.java:58)
at sun.plugin.net.protocol.jar.Handler.openConnection(Handler.java:18)
at java.net.URL.openConnection(URL.java:971)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.getJarFile(DeployURLClassPath.java:797)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.access$1000(DeployURLClassPath.java:678)
at com.sun.deploy.security.DeployURLClassPath$JarLoader$1.run(DeployURLClassPath.java:745)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.ensureOpen(DeployURLClassPath.java:737)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.<init>(DeployURLClassPath.java:699)
at com.sun.deploy.security.DeployURLClassPath$3.run(DeployURLClassPath.java:407)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.deploy.security.DeployURLClassPath.getLoader(DeployURLClassPath.java:396)
at com.sun.deploy.security.DeployURLClassPath.getLoader(DeployURLClassPath.java:373)
at com.sun.deploy.security.DeployURLClassPath.getResource(DeployURLClassPath.java:237)
at sun.plugin2.applet.Plugin2ClassLoader$2.run(Plugin2ClassLoader.java:1006)
at java.security.AccessController.doPrivileged(Native Method)
at sun.plugin2.applet.Plugin2ClassLoader.findClassHelper(Plugin2ClassLoader.java:995)
at sun.plugin2.applet.Applet2ClassLoader.findClass(Applet2ClassLoader.java:129)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Plugin2ClassLoader.java:263)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Plugin2ClassLoader.java:193)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Plugin2ClassLoader.java:253)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Plugin2ClassLoader.java:193)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Plugin2ClassLoader.java:174)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Plugin2ClassLoader.java:703)
at sun.plugin2.applet.Plugin2Manager.createApplet(Plugin2Manager.java:3031)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Plugin2Manager.java:1497)
at java.lang.Thread.run(Thread.java:722)
Caused by: java.lang.ClassCastException: sun.security.ssl.X509TrustManagerImpl cannot be cast to com.sun.net.ssl.internal.ssl.X509ExtendedTrustManager
at com.sun.deploy.security.X509ExtendedDeployTrustManager.<init>(X509ExtendedDeployTrustManager.java:113)
at com.sun.deploy.net.protocol.https.Handler$Initializer$1.run(Handler.java:70)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.deploy.net.protocol.https.Handler$Initializer.<clinit>(Handler.java:40)
... 31 more
Exception: java.lang.ExceptionInInitializerError