code: @Deprecated
      public static JavaClassAndMethod findMethod(JavaClass[] classList, String methodName, String methodSig) {
          return findMethod(classList, methodName, methodSig, ANY_METHOD);
      }
docs: Find a method in given list of classes, searching the classes in order.
  
  @param classList
  list of classes in which to search
  @param methodName
  the name of the method
  @param methodSig
  the signature of the method
  @return the JavaClassAndMethod, or null if no such method exists in the
  class