However from experience, in the Fusion Middleware monster of JARs, it can be difficult finding the JAR a Java Class belongs to, especially when running applications and facing missing class exceptions.
To find the JAR and its location within Oracle Fusion Middleware Home directory, follow the instructions below.
1. Open a command prompt window
2. Navigate to the base folder of all the JARs
3. Enter the following command, replace classname with the Class you are searching for:
forfiles /S /M *.jar /C "cmd /c jar -tvf @file | findstr /C:"classname" && echo @path"4. The command prompt will retrieve the name and location of all JARs that contain the searched Class.