java.io.FileNotFoundException is thrown every time jBPM Designer is opened when Business Central is deployed on WebSphere.

Having the Business Central deployed on WebSphere AS, every time a user opens a process definition, 3 errors appear in server log, all of them saying that "File not found: /org.kie.workbench.KIEWebapp/data:image/png". Although I can't see direct impact on any functionality, these exceptions cause the server log grows in size and is less understandable.