Could Not Create Navigator class

Question

Hello,
I hava a bean on an oracle form to invoke the Oracle Help for Java.
I placed the jar files(help4.jar,oracle_ice5.jar,ohj-jewt.jar) in <oracle_home>forms90/java and my forsweb.cfg has an entry to load these jar files.
when I open the form I am getting the following error messages in the java console
Could Not Create Navigator class "oracle.bali.share.collection.SingleItemEnumeration"'s signer information does not match signer information of other classes in the same package
Could Not Create Navigator class "oracle.bali.share.sort.StringComparator"'s signer information does not match signer information of other classes in the same package
Could Not Create Navigator class "oracle.bali.share.sort.StringComparator"'s signer information does not match signer information of other classes in the same package
Can any one please help me to rectify this.
Thanks,
Lavanya.

Answer 1

I believe that the problem is that the forms jar file contains a subset of the classes in the oracle.bali.share package.
The full set of oracle.bali.share classes is also shipped with Oracle Help for Java (in ohj-jewt.jar).
The ohj-jewt.jar file is not signed, but the forms jar file is signed. Thus, the error. In order to resolve the problem, you will need to have all of the classes in the oracle.bali.share package added to the signed forms jar (and then you can remove those classes from ohj-jewt.jar). You could either file an Oracle Support request, or bring this issue up on the Forms forum.