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Using SHA2 Certificate After JDK 7 Upgrade - Forms / Reports Getting "java.lang.RuntimeException: Could not generate dummy secret" and " Parameters not supported" (Doc ID 2069120.1)

Last updated on FEBRUARY 18, 2018

Applies to:

Oracle WebLogic Server - Version 10.3.6 to 10.3.6
Oracle Forms - Version to [Release 11g]
Oracle Reports Developer - Version to [Release 11g]
Oracle Fusion Middleware - Version to [Release Oracle11g]
Information in this document applies to any platform.


After installed new SHA2 certificate on Oracle Weblogic Server, SSL communication to WLS is failing. In this case, the OHS installed WLS Proxy Plugin is sending the request to WLS where the original request is originating from Oracle Forms / Reports use of the JRE client:

JRE Client --> HTTPS --> OHS/mod_wl_ohs --> HTTPS --> WLS

OHS log trace : 

[OHS] [ERROR:32] [OHS-2079] [core.c] [host_id: xxx] [host_addr: xxx] [pid: 7628] [tid: 2732] [user: SYSTEM] [VirtualHost: xxx:0]  nzos handshake error, nzos_Handshake returned 28862(server, client

[OHS] [ERROR:32] [OHS-2171] [core.c] [host_id: xxx] [host_addr: xxx] [pid: 7628] [tid: 2732] [user: SYSTEM] [VirtualHost: xxx:0]  NZ Library Error: SSL IO error [Hint: the client stop the connection unexpectedly]


WLS  log trace :

 <WLS_FORMS> <ExecuteThread: '3' for queue: 'weblogic.socket.Muxer'> <> <> <[Thread[ExecuteThread: '3' for queue: 'weblogic.socket.Muxer',5,Thread Group for Queue: 'weblogic.socket.Muxer']] SSLENGINE: Exception occurred during SSLEngine.unwrap(ByteBuffer,ByteBuffer[]). java.lang.RuntimeException: Could not generate dummy secret


SSL communication between the OHS and the WLS should work with SHA2 certificates.


1) Upgraded JDK from 1.6 to 1.7
2) Installed new SHA2 certificate on WLS


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