Problem migrating a WEB application from OAS 10.1.2.3.0 to WebLogic 12c

Dear Sirs,

We are migrating a WEB application from OAS 10.1.2.3.0 to WebLogic 12c. During migration we reached the following problem:

In the source code there is a servlet. WebLogic Server initializes this servlet when WebLogic Server starts up (<load-on-startup>1</load-on-startup>). The related servlet filter init() function performs some initializations of static servlet filter class members. These members are used by the static members of other class (named BillCheckPerformBean).

When we start the application under the OAS 10.1.2.3.0 everything is correct, i.e. init() function of the sevlet filter initializes the static members and later the static part of class BillCheckPerformBean use these members.