A method for using an appropriate level of code to be executed in a runtime environment. Code in a non-Java format is translated into a Java source file. During the translation process, metadata is generated from a configuration file where the metadata includes version information of the resources (e.g., JSTL) being used by the code written in the non-Java format. A determination is made as to whether to recompile the non-Java code based on software components, referred herein as “listener components,” determining whether the versions of the resources being used by the non-Java code performs acceptably well in the runtime environment. If a listener component determines that a version of a resource being used is not acceptable, then the non-Java code is recompiled with a newer version of the resource. In this manner, an appropriate level of code is executed by the runtime environment.