The class com.sun.org.appache.bcel.internal.util.ClassPath does not seem to serve any useful purpose in the JDK.

 - There's only one instance created, using its default empty constructor.
 - There's only one method called on that instance, from SyntheticRepository.java: _path.getInputStream(className);
 - Because _path was created using the default (and deprecated) empty constructor, and because ClassPath is loaded from the BCL (ClassPath.class.getClassLoader() == null), then _path.getInputStream(className) will always throw an IOException.

Therefore - it seems that in the JDK - the use of com.sun.org.appache.bcel.internal.util.ClassPath is reduced to an elaborate means of throwing an IOException.
Whether we could remove this class should be investigated.