嘿，
在 Windows 7-64 位上将我的 java 版本从 6u31 更新到 7u4 后，小程序停止工作。我使用 java-32 位，浏览器也是 32 位（试过 IE9 和 Firefox 12.0），唯一的原因是更新 java.lang. 我使用了来自http://www.java.com/en/download/testjava.jsp的测试，结果如下：
security: property package.access value sun.,com.sun.xml.internal.ws.,com.sun.xml.internal.bind.,com.sun.imageio.,com.sun.org.apache.xerces.internal.utils.,com.sun.org.apache.xalan.internal.utils.
security: property package.access new value sun.,com.sun.xml.internal.ws.,com.sun.xml.internal.bind.,com.sun.imageio.,com.sun.org.apache.xerces.internal.utils.,com.sun.org.apache.xalan.internal.utils.,com.sun.javaws
security: property package.access value sun.,com.sun.xml.internal.ws.,com.sun.xml.internal.bind.,com.sun.imageio.,com.sun.org.apache.xerces.internal.utils.,com.sun.org.apache.xalan.internal.utils.,com.sun.javaws
security: property package.access new value sun.,com.sun.xml.internal.ws.,com.sun.xml.internal.bind.,com.sun.imageio.,com.sun.org.apache.xerces.internal.utils.,com.sun.org.apache.xalan.internal.utils.,com.sun.javaws,com.sun.deploy
security: property package.access value sun.,com.sun.xml.internal.ws.,com.sun.xml.internal.bind.,com.sun.imageio.,com.sun.org.apache.xerces.internal.utils.,com.sun.org.apache.xalan.internal.utils.,com.sun.javaws,com.sun.deploy
security: property package.access new value sun.,com.sun.xml.internal.ws.,com.sun.xml.internal.bind.,com.sun.imageio.,com.sun.org.apache.xerces.internal.utils.,com.sun.org.apache.xalan.internal.utils.,com.sun.javaws,com.sun.deploy,com.sun.jnlp
security: property package.definition value null
security: property package.definition new value com.sun.javaws
security: property package.definition value com.sun.javaws
security: property package.definition new value com.sun.javaws,com.sun.deploy
security: property package.definition value com.sun.javaws,com.sun.deploy
security: property package.definition new value com.sun.javaws,com.sun.deploy,com.sun.jnlp
security: property package.access value sun.,com.sun.xml.internal.ws.,com.sun.xml.internal.bind.,com.sun.imageio.,com.sun.org.apache.xerces.internal.utils.,com.sun.org.apache.xalan.internal.utils.,com.sun.javaws,com.sun.deploy,com.sun.jnlp
security: property package.access new value sun.,com.sun.xml.internal.ws.,com.sun.xml.internal.bind.,com.sun.imageio.,com.sun.org.apache.xerces.internal.utils.,com.sun.org.apache.xalan.internal.utils.,com.sun.javaws,com.sun.deploy,com.sun.jnlp,org.mozilla.jss
security: property package.definition value com.sun.javaws,com.sun.deploy,com.sun.jnlp
security: property package.definition new value com.sun.javaws,com.sun.deploy,com.sun.jnlp,org.mozilla.jss
basic: Added progress listener: sun.plugin.util.ProgressMonitorAdapter@1cc55fb
basic: Plugin2ClassLoader.addURL parent called for http://www.java.com/applet/TestVM2-test.jar
network: Cache entry not found [url: http://www.java.com/applet/TestVM2-test.jar, version: null]
network: Connecting http://www.java.com/applet/TestVM2-test.jar with proxy=DIRECT
network: Connecting http://www.java.com:80/ with proxy=DIRECT
network: Cache entry not found [url: http://www.java.com/applet/TestVM2-test.jar, version: null]
network: Cache entry not found [url: http://www.java.com/applet/TestVM2-test.jar, version: null]
network: Connecting http://www.java.com/applet/TestVM2-test.jar with proxy=DIRECT
network: Connecting http://www.java.com:80/ with proxy=DIRECT
network: Connecting http://www.java.com/applet/TestVM2-test.jar with proxy=DIRECT
network: Connecting http://www.java.com:80/ with proxy=DIRECT
java.net.SocketException: Permission denied: connect
bla bla bla
network: Cache entry not found [url: http://www.java.com/applet/TestVM2-test.jar, version: null]
network: Connecting http://www.java.com/applet/TestVM2-test.jar with proxy=DIRECT
network: Connecting http://www.java.com:80/ with proxy=DIRECT
network: Cache entry not found [url: http://www.java.com/applet/TestVM2-test.jar, version: null]
network: Cache entry not found [url: http://www.java.com/applet/TestVM2-test.jar, version: null]
network: Connecting http://www.java.com/applet/TestVM2-test.jar with proxy=DIRECT
network: Connecting http://www.java.com:80/ with proxy=DIRECT
network: Connecting http://www.java.com/applet/TestVM2-test.jar with proxy=DIRECT
network: Connecting http://www.java.com:80/ with proxy=DIRECT
java.net.SocketException: Permission denied: connect
bla bla bla
network: Cache entry not found [url: http://www.java.com/applet/, version: null]
network: Cache entry not found [url: http://www.java.com/applet/testJava2_1/TestVMApplet.class, version: null]
network: Connecting http://www.java.com/applet/testJava2_1/TestVMApplet.class with proxy=DIRECT
network: Connecting http://www.java.com:80/ with proxy=DIRECT
network: Cache entry not found [url: http://www.java.com/applet/testJava2_1/TestVMApplet/class.class, version: null]
network: Connecting http://www.java.com/applet/testJava2_1/TestVMApplet/class.class with proxy=DIRECT
network: Connecting http://www.java.com:80/ with proxy=DIRECT
java.lang.ClassNotFoundException: testJava2_1.TestVMApplet.class
bla bla bla
basic: load: class testJava2_1/TestVMApplet.class not found.
java.lang.ClassNotFoundException: testJava2_1.TestVMApplet.class
bla bla bla
Ignored exception: java.lang.ClassNotFoundException: testJava2_1.TestVMApplet.class
basic: Dialog type is not candidate for embedding
basic: Removed progress listener: sun.plugin.util.ProgressMonitorAdapter@1cc55fb
basic: Loading Java Applet Failed...
security: Reset deny session certificate store
我已经尝试了很多不同的选择，比如禁用防火墙、禁用 Java 控制面板上的下一代插件、清除缓存、卸载和重新安装（JRE 和 JDK）、玩混合模式安全验证，也许还有一些我不记得了。我不知道我还能尝试什么让它工作..任何人都经历过同样的事情并解决了它？
啊，作为公司政策，由于安全更新，我们必须尽可能坚持使用最新版本。