java.lang.ClassNotFoundException: oracle.forms.engine.Main


Oracle Application Server 10g has a form service to run a form on the web,
Start -> Programs ->Oracle Application Server 10g -> Forms Services -> Run a form on the web for form=test.fmx

If the applet is not display correctly and receive the error:
java.lang.ClassNotFoundException: oracle.forms.engine.Main

you should check if JInitiator already installed.

If already installed, then check in
Control Panel -> JInitiator administration console , the option “Use browser settings” and “use proxies” has to be unchecked.

10 Responses

  1. Both Use Browser Settings and Use Proxies are unchecked on my system but I still get the same error. Any other suggestions?

  2. Ok Lewis, i use JInitiator 1.3.1.17

    maybe you can try to install j2sdk1.4.2 or any higher version.

  3. Hi,

    I’m experiencing the same problem – on Vista. Tried almost everything, Are there are workable solutions to this? I’m realy struggeling with the problem for weeks now!

    Any assistance will be appreciated.

    Regards
    Steven

  4. I use Vista too. I have install Jinitiator and Java SDK too. But when i user browser to start oracle form applet, i see java icon on systray, not jinitiator icon.

    I use firefox, when i install jinitiator or java sdk, i close firefox to make sure installation run properly.

    Maybe you can use only java sdk or java runtime, uninstall jinitiator.

  5. HI all,

    did you clear the JAR cache also ?

    Cheers,
    Robert.

  6. Hey
    I use the new Vista 64, and i´ve got the same probs like lewis.
    The word “vista” means the chance, but i didn´t see any chance- theres a wall between me and the problem. Can you help me plz?
    greets

  7. There is two problem

    1. java.lang.ClassNotFoundException: oracle.forms.engine.Main

    2. Network has occured.

  8. thank you very much , It’s work for me .

  9. hi all,
    you can solve the problem by the following setting it will work fine.
    In Control Panel -> JInitiator administration console , the option “Use browser settings” has to be unchecked.

    Regards,
    Ameer Mirza

  10. i have win 7 64 bit i am having the same problem
    java.lang.ClassNotFoundException: oracle.forms.engine.Main
    what to do i already uncheck the use browser setting

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