Java.lang.ClassNotFoundException: weblogic.management.console.applets.NavApplet In Browser When Using SSL3 Protocol (Doc ID 1372800.1)

Last updated on NOVEMBER 05, 2016

Applies to:

Oracle Weblogic Server - Version: 8.1 to 8.1
Information in this document applies to any platform.

Symptoms

After specifying the -Dweblogic.security.SSL.protocolVersion=SSL3 option in JAVA_OPTIONS and restarting WebLogic Server, in some environments, the menu tree on the left panel could not be displayed correctly and it shows an error in the Java Console:

load: class weblogic.management.console.applets.NavApplet not found.
java.lang.ClassNotFoundException: weblogic.management.console.applets.NavApplet
    at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
    at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
    at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Caused by: javax.net.ssl.SSLException: Received fatal alert: protocol_version
    at com.sun.net.ssl.internal.ssl.Alerts.getSSLException(Unknown Source)
    at com.sun.net.ssl.internal.ssl.Alerts.getSSLException(Unknown Source)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.recvAlert(Unknown Source)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(Unknown Source)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at sun.plugin2.applet.Applet2ClassLoader.getBy
.......

Cause

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