FRM 92091 unexpected fatalerror in client-side Java code

Hi to all ..
I have a Forms/Reports Application in a form I have a Java Bean that get the username of the client PC
In the Oracle AS 10g all work fine in a Weblogic I get the error
FRM 92091 unexpected fatalerror in client-side Java code
and in the details of the error
java.security.AccessControlException : access denied (java.utils.PropertyPermission user.name read)
any Idea ????
Thank's in advance

Hi there
I am having a similar problem. We have a weblogic server which runs our forms application.
We were able to access the forms without any problem until when at one point, when we choose a different module in the form, we hit the below error
FRM92091 : unexpected fatalerror in client-side Java code
This is the details
Java Exception :
java.lang.SecurityException:class "oracle.forms.ui.DropDownEvent"'s signer information does not match signer information of other classes in the same package
at java.lang.ClassLoader.checkCerts(Unknown Source)
at java.lang.ClassLoader.preDefineClass(Unknown Source)
at java.lang.ClassLoader.defineClassCond(Unknown Source)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
at sun.reflect.DelegationMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
After the above error, the user restarted the PC, and the problem is gone. If this was an issue with the access right to the directory, how come after restart the PC, the form was working fine. Hope to hear some feedback and thank you in advance.
Kannan

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