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java.lang.ClassNotFoundException: java.io.IOException: open HTTP connection failed.	at sun.applet.AppletClassLoader.getBytes(Unknown Source)	at sun.applet.AppletClassLoader.access$100(Unknown Source)	at sun.applet.AppletClassLoader$1.run(Unknown Source)	at java.security.AccessController.doPrivileged(Native Method)	at sun.applet.AppletClassLoader.findClass(Unknown Source)	at sun.plugin.security.PluginClassLoader.findClass(Unknown Source)	at java.lang.ClassLoader.loadClass(Unknown Source)	at sun.applet.AppletClassLoader.loadClass(Unknown Source)	at java.lang.ClassLoader.loadClass(Unknown Source)	at java.lang.ClassLoader.loadClassInternal(Unknown Source)	at java.lang.Class.forName0(Native Method)	at java.lang.Class.forName(Unknown Source)	at oracle.forms.handler.UICommon.instantiate(Unknown Source)	at oracle.forms.handler.UICommon.onCreate(Unknown Source)	at oracle.forms.handler.ButtonItem.onCreate(Unknown Source)	at oracle.forms.engine.Runform.onCreateHandler(Unknown Source)	at oracle.forms.engine.Runform.processMessage(Unknown Source)	at oracle.forms.engine.Runform.processSet(Unknown Source)	at oracle.forms.engine.Runform.onMessageReal(Unknown Source)	at oracle.forms.engine.Runform.onMessage(Unknown Source)	at oracle.forms.engine.Runform.sendInitialMessage(Unknown Source)	at oracle.forms.engine.Runform.startRunform(Unknown Source)	at oracle.forms.engine.Main.createRunform(Unknown Source)	at oracle.forms.engine.Main.start(Unknown Source)	at sun.applet.AppletPanel.run(Unknown Source)	at java.lang.Thread.run(Unknown Source)