code: public BshClassManager getClassManager() {
          if (this.classManager != null)
              return this.classManager;
          if (this.parent != null && this.parent != JAVACODE)
              return this.parent.getClassManager();
          this.setClassManager(BshClassManager
                  .createClassManager(null/* interp */));
          // Interpreter.debug("No class manager namespace:" +this);
          return this.classManager;
      }
docs: Gets the class manager.
  @return the class manager